{"id":30905,"date":"2026-05-31T22:29:13","date_gmt":"2026-05-31T14:29:13","guid":{"rendered":"https:\/\/chimaytech.net\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/"},"modified":"2026-05-31T22:29:13","modified_gmt":"2026-05-31T14:29:13","slug":"oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy","status":"publish","type":"post","link":"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/","title":{"rendered":"Oil-in-Water Detection Technologies: From UV Fluorescence to Infrared Spectroscopy"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_50 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Oil-in-Water_Detection_Technologies_From_UV_Fluorescence_to_Infrared_Spectroscopy\" title=\"Oil-in-Water Detection Technologies: From UV Fluorescence to Infrared Spectroscopy\">Oil-in-Water Detection Technologies: From UV Fluorescence to Infrared Spectroscopy<\/a><ul class='ez-toc-list-level-2'><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Key_Takeaways\" title=\"Key Takeaways\">Key Takeaways<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Introduction\" title=\"Introduction\">Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Understanding_Oil-in-Water_Measurement\" title=\"Understanding Oil-in-Water Measurement\">Understanding Oil-in-Water Measurement<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#The_Complexity_of_%E2%80%9COil%E2%80%9D_Measurement\" title=\"The Complexity of &ldquo;Oil&rdquo; Measurement\">The Complexity of &ldquo;Oil&rdquo; Measurement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Sample_Handling_Challenges\" title=\"Sample Handling Challenges\">Sample Handling Challenges<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#UV_Fluorescence_Technology\" title=\"UV Fluorescence Technology\">UV Fluorescence Technology<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Operating_Principle\" title=\"Operating Principle\">Operating Principle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Performance_Characteristics\" title=\"Performance Characteristics\">Performance Characteristics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Advantages\" title=\"Advantages\">Advantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Limitations\" title=\"Limitations\">Limitations<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Infrared_Absorption_Technology\" title=\"Infrared Absorption Technology\">Infrared Absorption Technology<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Operating_Principle-2\" title=\"Operating Principle\">Operating Principle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Performance_Characteristics-2\" title=\"Performance Characteristics\">Performance Characteristics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Advantages-2\" title=\"Advantages\">Advantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Limitations-2\" title=\"Limitations\">Limitations<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Gas_Chromatography-Flame_Ionization_Detection_GC-FID\" title=\"Gas Chromatography-Flame Ionization Detection (GC-FID)\">Gas Chromatography-Flame Ionization Detection (GC-FID)<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Operating_Principle-3\" title=\"Operating Principle\">Operating Principle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Performance_Characteristics-3\" title=\"Performance Characteristics\">Performance Characteristics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Advantages-3\" title=\"Advantages\">Advantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Limitations-3\" title=\"Limitations\">Limitations<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Online_and_Inline_Monitoring_Systems\" title=\"Online and Inline Monitoring Systems\">Online and Inline Monitoring Systems<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#System_Architecture\" title=\"System Architecture\">System Architecture<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#ChiMay_System_Features\" title=\"ChiMay System Features\">ChiMay System Features<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Technology_Selection_Guide\" title=\"Technology Selection Guide\">Technology Selection Guide<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Application_Requirements_Analysis\" title=\"Application Requirements Analysis\">Application Requirements Analysis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Economic_Considerations\" title=\"Economic Considerations\">Economic Considerations<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Calibration_and_Quality_Assurance\" title=\"Calibration and Quality Assurance\">Calibration and Quality Assurance<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Calibration_Procedures\" title=\"Calibration Procedures\">Calibration Procedures<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Quality_Control_Practices\" title=\"Quality Control Practices\">Quality Control Practices<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Future_Developments\" title=\"Future Developments\">Future Developments<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Emerging_Capabilities\" title=\"Emerging Capabilities\">Emerging Capabilities<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/chimaytech.net\/fr\/oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 id=\"oil-in-water-detection-technologies-from-uv-fluorescence-to-infrared-spectroscopy\"><span class=\"ez-toc-section\" id=\"Oil-in-Water_Detection_Technologies_From_UV_Fluorescence_to_Infrared_Spectroscopy\"><\/span>Oil-in-Water Detection Technologies: From UV Fluorescence to Infrared Spectroscopy<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2 id=\"key-takeaways\"><span class=\"ez-toc-section\" id=\"Key_Takeaways\"><\/span>Key Takeaways<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Multiple technologies enable oil-in-water measurement, including UV fluorescence (<strong>0.1-200 ppm<\/strong>), infrared absorption (<strong>0-1,000 ppm<\/strong>), and gravimetric methods<\/li>\n<li>Technology selection depends on required detection range, regulatory acceptance, and operational environment<\/li>\n<li><strong>ChiMay inline oil-in-water sensors<\/strong> utilizing UV fluorescence deliver regulatory-grade performance meeting <strong>ISO 9377-2<\/strong> and <strong>ASTM D7066-04<\/strong> standards<\/li>\n<li>The global produced water treatment market, valued at <strong>$12.8 billion in 2026<\/strong>, drives continued advancement in detection technology<\/li>\n<\/ul>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Accurate oil-in-water measurement stands as one of the most critical requirements for effective produced water management. From regulatory compliance verification to treatment system optimization, operations depend on reliable detection technology delivering consistent, actionable data.<\/p>\n<p>This guide examines principal oil-in-water detection technologies\u2014explaining operating principles, performance characteristics, and selection criteria.<\/p>\n<h2 id=\"understanding-oil-in-water-measurement\"><span class=\"ez-toc-section\" id=\"Understanding_Oil-in-Water_Measurement\"><\/span>Understanding Oil-in-Water Measurement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"the-complexity-of-oil-measurement\"><span class=\"ez-toc-section\" id=\"The_Complexity_of_%E2%80%9COil%E2%80%9D_Measurement\"><\/span>The Complexity of &ldquo;Oil&rdquo; Measurement<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Oil<\/strong> encompasses diverse hydrocarbon compounds:<br \/>\n&#8211; <strong>Light hydrocarbons<\/strong>: Easily evaporated, primarily dissolved<br \/>\n&#8211; <strong>Medium-weight hydrocarbons<\/strong>: Primary monitoring targets<br \/>\n&#8211; <strong>Heavy hydrocarbons<\/strong>: Persistent, often emulsified<br \/>\n&#8211; <strong>Polar compounds<\/strong>: Phenols and organic acids with water solubility<\/p>\n<p>Different detection technologies respond to different hydrocarbon fractions, explaining why multiple methods may yield different results. <strong>ASTM D7066-04<\/strong> and <strong>ISO 9377-2<\/strong> both receive regulatory acceptance despite measuring somewhat different fractions.<\/p>\n<h3 id=\"sample-handling-challenges\"><span class=\"ez-toc-section\" id=\"Sample_Handling_Challenges\"><\/span>Sample Handling Challenges<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Produced water samples present challenges affecting measurement accuracy:<br \/>\n&#8211; <strong>Emulsion stability<\/strong>: Some waters form stable emulsions resisting separation<br \/>\n&#8211; <strong>Temperature effects<\/strong>: Oil solubility and viscosity change with temperature<br \/>\n&#8211; <strong>Chemical interference<\/strong>: Production chemicals may affect sensor response<br \/>\n&#8211; <strong>Particulate matter<\/strong>: Suspended solids scatter light in optical measurements<\/p>\n<h2 id=\"uv-fluorescence-technology\"><span class=\"ez-toc-section\" id=\"UV_Fluorescence_Technology\"><\/span>UV Fluorescence Technology<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"operating-principle\"><span class=\"ez-toc-section\" id=\"Operating_Principle\"><\/span>Operating Principle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>UV fluorescence detection exploits the fluorescence properties of aromatic hydrocarbon compounds\u2014primarily BTEX and larger PAHs. When exposed to UV light at <strong>250-400 nm<\/strong>, these compounds absorb energy and re-emit fluorescent light at <strong>300-500 nm<\/strong> wavelengths.<\/p>\n<p>The intensity of emitted fluorescence correlates directly with aromatic hydrocarbon concentration, providing quantitative measurement following Beer-Lambert relationship.<\/p>\n<h3 id=\"performance-characteristics\"><span class=\"ez-toc-section\" id=\"Performance_Characteristics\"><\/span>Performance Characteristics<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Detection Range<\/strong>: <strong>0.1-200 ppm<\/strong> depending on configuration<br \/>\n<strong>Response Time<\/strong>: Seconds to minutes for real-time monitoring<br \/>\n<strong>Sensitivity<\/strong>: Detects concentrations as low as <strong>0.1 ppm<\/strong><br \/>\n<strong>Selectivity<\/strong>: Primarily responds to aromatic hydrocarbons<\/p>\n<p><strong>ERUN <a href=\"\/tag\/water-testing-instruments\" target=\"_blank\"><strong>water testing instruments<\/strong><\/a><\/strong> reports that UV fluorescence sensors comply with <strong>ISO 9377-2<\/strong> requirements.<\/p>\n<h3 id=\"advantages\"><span class=\"ez-toc-section\" id=\"Advantages\"><\/span>Advantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>High sensitivity<\/strong>: Trace detection below <strong>1 ppm<\/strong><\/li>\n<li><strong>Fast response<\/strong>: Near-instantaneous measurement<\/li>\n<li><strong>Continuous operation<\/strong>: Inline sensors without consumables<\/li>\n<li><strong>Low maintenance<\/strong>: Self-cleaning configurations reduce intervention<\/li>\n<li><strong>Regulatory acceptance<\/strong>: <strong>ISO 9377-2<\/strong> and <strong>ASTM<\/strong> standards<\/li>\n<\/ul>\n<h3 id=\"limitations\"><span class=\"ez-toc-section\" id=\"Limitations\"><\/span>Limitations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Oil type dependence<\/strong>: Response varies with hydrocarbon composition<\/li>\n<li><strong>Temperature sensitivity<\/strong>: Compensation required<\/li>\n<li><strong>Background fluorescence<\/strong>: Some chemicals may interfere<\/li>\n<li><strong>UV source degradation<\/strong>: Periodic lamp replacement needed<\/li>\n<\/ul>\n<h2 id=\"infrared-absorption-technology\"><span class=\"ez-toc-section\" id=\"Infrared_Absorption_Technology\"><\/span>Infrared Absorption Technology<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"operating-principle_1\"><span class=\"ez-toc-section\" id=\"Operating_Principle-2\"><\/span>Operating Principle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Infrared absorption measures C-H bond absorption at <strong>2,800-3,100 cm\u207b\u00b9<\/strong> wavelengths. Principal methods receiving regulatory acceptance:<\/p>\n<p><strong>ASTM D7066-04<\/strong>: Tetrachloroethylene extraction and infrared absorption<br \/>\n<strong>ASTM D7678<\/strong>: N-hexane extraction and infrared detection<\/p>\n<p>Both methods involve solvent extraction followed by infrared measurement.<\/p>\n<h3 id=\"performance-characteristics_1\"><span class=\"ez-toc-section\" id=\"Performance_Characteristics-2\"><\/span>Performance Characteristics<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Detection Range<\/strong>: <strong>0-1,000 ppm<\/strong> (gravimetric) or <strong>0-100 ppm<\/strong> (direct)<br \/>\n<strong>Method Detection Limit<\/strong>: Approximately <strong>1-5 mg\/L<\/strong><br \/>\n<strong>Analysis Time<\/strong>: Minutes to hours<br \/>\n<strong>Selectivity<\/strong>: Broader hydrocarbon range than fluorescence<\/p>\n<h3 id=\"advantages_1\"><span class=\"ez-toc-section\" id=\"Advantages-2\"><\/span>Advantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Broader range<\/strong>: Handles higher concentrations<\/li>\n<li><strong>Wider oil type acceptance<\/strong>: Both aromatic and aliphatic hydrocarbons<\/li>\n<li><strong>Regulatory standardization<\/strong>: Long history of acceptance under <strong>EPA Method 1664<\/strong><\/li>\n<li><strong>Versatility<\/strong>: Laboratory and field deployment options<\/li>\n<\/ul>\n<h3 id=\"limitations_1\"><span class=\"ez-toc-section\" id=\"Limitations-2\"><\/span>Limitations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Solvent requirements<\/strong>: Traditional methods require hazardous solvents<\/li>\n<li><strong>Extraction variability<\/strong>: Incomplete extraction introduces variability<\/li>\n<li><strong>Slower response<\/strong>: Sample collection and analysis require more time<\/li>\n<li><strong>Higher operating costs<\/strong>: Solvent consumption adds to costs<\/li>\n<\/ul>\n<h2 id=\"gas-chromatography-flame-ionization-detection-gc-fid\"><span class=\"ez-toc-section\" id=\"Gas_Chromatography-Flame_Ionization_Detection_GC-FID\"><\/span>Gas Chromatography-Flame Ionization Detection (GC-FID)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"operating-principle_2\"><span class=\"ez-toc-section\" id=\"Operating_Principle-3\"><\/span>Operating Principle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>ISO 9377-2<\/strong> specifies GC-FID as the reference method for hydrocarbon index determination. The method involves solvent extraction, chromatographic separation, and FID quantitation.<\/p>\n<p>The FID detector responds to all organic compounds containing carbon and hydrogen, providing broad hydrocarbon detection.<\/p>\n<h3 id=\"performance-characteristics_2\"><span class=\"ez-toc-section\" id=\"Performance_Characteristics-3\"><\/span>Performance Characteristics<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Method Detection Limit<\/strong>: <strong>0.04-0.1 mg\/L<\/strong><br \/>\n<strong>Analysis Time<\/strong>: <strong>30-60 minutes<\/strong> per sample<br \/>\n<strong>Selectivity<\/strong>: All combustible organic compounds<\/p>\n<h3 id=\"advantages_2\"><span class=\"ez-toc-section\" id=\"Advantages-3\"><\/span>Advantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Gold standard<\/strong>: <strong>ISO 9377-2<\/strong> acceptance makes it regulatory reference<\/li>\n<li><strong>Excellent sensitivity<\/strong>: Lowest detection limits among standardized methods<\/li>\n<li><strong>Compound identification<\/strong>: Chromatographic separation enables characterization<\/li>\n<li><strong>Calibration reference<\/strong>: Other methods often calibrated against GC-FID<\/li>\n<\/ul>\n<h3 id=\"limitations_2\"><span class=\"ez-toc-section\" id=\"Limitations-3\"><\/span>Limitations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Laboratory requirement<\/strong>: Specialized instrumentation and trained analysts<\/li>\n<li><strong>Slow turnaround<\/strong>: Batch analysis limits throughput<\/li>\n<li><strong>High cost<\/strong>: Instrument and operation costs exceed inline methods<\/li>\n<li><strong>No real-time capability<\/strong>: Cannot support continuous monitoring<\/li>\n<\/ul>\n<h2 id=\"online-and-inline-monitoring-systems\"><span class=\"ez-toc-section\" id=\"Online_and_Inline_Monitoring_Systems\"><\/span>Online and Inline Monitoring Systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"system-architecture\"><span class=\"ez-toc-section\" id=\"System_Architecture\"><\/span>System Architecture<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Modern online systems integrate multiple components:<\/p>\n<p><strong>Sensor Assembly<\/strong>: Contains measurement element in probe configuration for inline or extractive installation<\/p>\n<p><strong>Sample Conditioning<\/strong>: Extracts representative sample including filtration and temperature control<\/p>\n<p><strong>Transmitter\/Controller<\/strong>: Processes signals, applies compensation, displays readings, transmits data<\/p>\n<p><strong>Data Management<\/strong>: Stores history, generates reports, supports alarm notification<\/p>\n<h3 id=\"chimay-system-features\"><span class=\"ez-toc-section\" id=\"ChiMay_System_Features\"><\/span>ChiMay System Features<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>ChiMay inline oil-in-water sensors<\/strong> incorporate:<br \/>\n&#8211; <strong>Self-cleaning interfaces<\/strong>: Ultrasonic or mechanical cleaning<br \/>\n&#8211; <strong>Wide dynamic range<\/strong>: Multiple measurement ranges<br \/>\n&#8211; <strong>Temperature compensation<\/strong>: Built-in algorithms ensure accuracy<br \/>\n&#8211; <strong>Multiple outputs<\/strong>: <strong>Modbus<\/strong>, <strong>HART<\/strong>, and <strong>Profibus<\/strong> protocols<br \/>\n&#8211; <strong>Regulatory compliance<\/strong>: Meeting <strong>ISO 9377-2<\/strong> and <strong>ASTM D7066-04<\/strong><\/p>\n<h2 id=\"technology-selection-guide\"><span class=\"ez-toc-section\" id=\"Technology_Selection_Guide\"><\/span>Technology Selection Guide<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"application-requirements-analysis\"><span class=\"ez-toc-section\" id=\"Application_Requirements_Analysis\"><\/span>Application Requirements Analysis<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Regulatory Compliance Monitoring<\/strong>:<br \/>\n&#8211; Required if agency specifies particular method<br \/>\n&#8211; <strong>UV fluorescence<\/strong> offers continuous monitoring with acceptance<br \/>\n&#8211; <strong>GC-FID<\/strong> provides reference for method-specific permits<\/p>\n<p><strong>Treatment System Optimization<\/strong>:<br \/>\n&#8211; <strong>Inline UV fluorescence<\/strong> enables real-time process feedback<br \/>\n&#8211; <strong>Multiple points<\/strong> track performance across stages<br \/>\n&#8211; <strong>ChiMay sensors<\/strong> provide continuous data<\/p>\n<p><strong>Process Control<\/strong>:<br \/>\n&#8211; <strong>Fast response<\/strong> essential for automated control<br \/>\n&#8211; <strong>Continuous measurement<\/strong> outperforms periodic sampling<br \/>\n&#8211; <strong>Alarm capability<\/strong> enables immediate response<\/p>\n<h3 id=\"economic-considerations\"><span class=\"ez-toc-section\" id=\"Economic_Considerations\"><\/span>Economic Considerations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<thead>\n<tr>\n<th>Technology<\/th>\n<th>Capital Cost<\/th>\n<th>Operating Cost<\/th>\n<th>Application<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>UV Fluorescence (inline)<\/td>\n<td>$5,000-20,000<\/td>\n<td>$500-2,000\/year<\/td>\n<td>Continuous monitoring<\/td>\n<\/tr>\n<tr>\n<td>Infrared (extractive)<\/td>\n<td>$10,000-50,000<\/td>\n<td>$2,000-10,000\/year<\/td>\n<td>Regulatory compliance<\/td>\n<\/tr>\n<tr>\n<td>GC-FID (laboratory)<\/td>\n<td>N\/A<\/td>\n<td>$50-200\/sample<\/td>\n<td>Reference method<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"calibration-and-quality-assurance\"><span class=\"ez-toc-section\" id=\"Calibration_and_Quality_Assurance\"><\/span>Calibration and Quality Assurance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"calibration-procedures\"><span class=\"ez-toc-section\" id=\"Calibration_Procedures\"><\/span>Calibration Procedures<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Primary Calibration<\/strong>: Using certified oil-in-water reference standards traceable to national metrology institutes. <strong>ERUN Water Testing Instruments<\/strong> recommends hexadecane, mineral oil, or matched standards.<\/p>\n<p><strong>Calibration Frequency<\/strong>: Inline sensors typically require daily verification and monthly calibration; laboratory methods require calibration with each batch.<\/p>\n<p><strong>Matrix Effects<\/strong>: Calibration standards should match sample matrix as closely as possible.<\/p>\n<h3 id=\"quality-control-practices\"><span class=\"ez-toc-section\" id=\"Quality_Control_Practices\"><\/span>Quality Control Practices<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Blank measurements<\/strong>: Verify no contamination<\/li>\n<li><strong>Duplicate analyses<\/strong>: Assess precision<\/li>\n<li><strong>Spike recoveries<\/strong>: Verify extraction efficiency<\/li>\n<li><strong>Calibration verification<\/strong>: Confirm continued validity<\/li>\n<li><strong>Reference method correlation<\/strong>: Identify systematic biases<\/li>\n<\/ul>\n<h2 id=\"future-developments\"><span class=\"ez-toc-section\" id=\"Future_Developments\"><\/span>Future Developments<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"emerging-capabilities\"><span class=\"ez-toc-section\" id=\"Emerging_Capabilities\"><\/span>Emerging Capabilities<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Multi-wavelength fluorescence<\/strong>: Improved oil type discrimination<br \/>\n<strong>Machine learning calibration<\/strong>: AI algorithms improve accuracy<br \/>\n<strong>Miniaturization<\/strong>: Smaller, lower-cost sensors enable broader deployment<br \/>\n<strong>Sensor fusion<\/strong>: Multiple principles in single instruments<\/p>\n<p><strong>ChiMay development programs<\/strong> incorporate these advancing capabilities.<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Oil-in-water detection technologies span various principles and applications. <strong>UV fluorescence<\/strong> offers sensitivity and response time essential for continuous monitoring and compliance. <strong>Infrared methods<\/strong> provide regulatory acceptance and broader coverage. <strong>GC-FID<\/strong> serves as the reference method.<\/p>\n<p>Technology selection requires matching capabilities to requirements\u2014including detection limits, response time, and economic constraints. <strong>ChiMay inline oil-in-water sensors<\/strong> deliver the reliability and accuracy that produced water management demands.<\/p>\n<p>As the produced water treatment market grows from <strong>$12.8 billion to $24.75 billion<\/strong>, investment in advanced detection technology will continue accelerating.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oil-in-Water Detection Technologies: From UV Fluorescence to Infrared Spectroscopy Key Takeaways Multiple technologies enable oil-in-water measurement, including UV fluorescence (0.1-200 ppm), infrared absorption (0-1,000 ppm), and gravimetric methods Technology selection depends on required detection range, regulatory acceptance, and operational environment ChiMay inline oil-in-water sensors utilizing UV fluorescence deliver regulatory-grade performance meeting ISO 9377-2 and ASTM&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"categories":[1],"tags":[203228,203661,88188],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"fr","enabled_languages":["en","es","de","fr","ru","pt","ar","ja","ko","it","id","hi","th","vi","tr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false},"pt":{"title":false,"content":false,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false},"ja":{"title":false,"content":false,"excerpt":false},"ko":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false},"id":{"title":false,"content":false,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false},"th":{"title":false,"content":false,"excerpt":false},"vi":{"title":false,"content":false,"excerpt":false},"tr":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/posts\/30905"}],"collection":[{"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/comments?post=30905"}],"version-history":[{"count":0,"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/posts\/30905\/revisions"}],"wp:attachment":[{"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/media?parent=30905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/categories?post=30905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chimaytech.net\/fr\/wp-json\/wp\/v2\/tags?post=30905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}