{"id":31409,"date":"2026-09-03T13:01:23","date_gmt":"2026-09-03T05:01:23","guid":{"rendered":"https:\/\/www.chimaytech.net\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/"},"modified":"2026-09-03T13:01:23","modified_gmt":"2026-09-03T05:01:23","slug":"laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi","status":"publish","type":"post","link":"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/","title":{"rendered":"Laser-Induced Breakdown Spectroscopy for Rapid PFAS Site Characterization: The Shanghai ChiMay Field Approach"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\" style=\"cursor:inherit\">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:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Laser-Induced_Breakdown_Spectroscopy_for_Rapid_PFAS_Site_Characterization_The_Shanghai_ChiMay_Field_Approach\" >Laser-Induced Breakdown Spectroscopy for Rapid PFAS Site Characterization: The Shanghai ChiMay Field Approach<\/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:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#The_Short_Version\" >The Short Version<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Why_Field_Screening_Matters\" >Why Field Screening Matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#LIBS_Technology_Fundamentals_for_PFAS_Detection\" >LIBS Technology Fundamentals for PFAS Detection<\/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:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Plasma_Generation_and_Elemental_Emission\" >Plasma Generation and Elemental Emission<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Field_Deployment_Considerations\" >Field Deployment Considerations<\/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:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#From_Spot_Samples_to_Spatial_Mapping\" >From Spot Samples to Spatial Mapping<\/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:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Grid-Based_Screening_Methodology\" >Grid-Based Screening Methodology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Data_Integration_and_Visualization\" >Data Integration and Visualization<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Cost-Benefit_Analysis\" >Cost-Benefit Analysis<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Traditional_Versus_LIBS-Based_Characterization\" >Traditional Versus LIBS-Based Characterization<\/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:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#Regulatory_Acceptance_and_Quality_Assurance\" >Regulatory Acceptance and Quality Assurance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.chimaytech.net\/fr\/laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chi\/#The_Bottom_Line\" >The Bottom Line<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 id=\"laser-induced-breakdown-spectroscopy-for-rapid-pfas-site-characterization-the-shanghai-chimay-field-approach\"><span class=\"ez-toc-section\" id=\"Laser-Induced_Breakdown_Spectroscopy_for_Rapid_PFAS_Site_Characterization_The_Shanghai_ChiMay_Field_Approach\"><\/span>Laser-Induced Breakdown Spectroscopy for Rapid PFAS Site Characterization: The Shanghai ChiMay Field Approach<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2 id=\"the-short-version\"><span class=\"ez-toc-section\" id=\"The_Short_Version\"><\/span>The Short Version<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Laser-induced breakdown spectroscopy (LIBS) can detect fluorine, the signature element in all PFAS compounds, at concentrations below <strong>100 parts per million<\/strong> in soil and sediment matrices within seconds.<\/li>\n<li>The US Department of Defense manages over <strong>18,000<\/strong> known or suspected PFAS release sites, making rapid field screening essential for efficient characterization and remediation planning.<\/li>\n<li>LIBS eliminates the need for sample transportation to centralized laboratories, reducing site characterization timelines from weeks to hours and cutting analytical costs by <strong>60 to 80 percent<\/strong>.<\/li>\n<li>Shanghai ChiMay&rsquo;s multi-parameter sensor platform supports integrated field data acquisition that combines fluorine detection with pH, conductivity, and moisture measurements for comprehensive site assessment.<\/li>\n<li>The global environmental remediation market is valued at <strong>USD 115 billion<\/strong> in 2026, with PFAS-related remediation representing the fastest-growing segment at an estimated <strong>12.4 percent annual growth rate<\/strong>.<\/li>\n<\/ul>\n<h2 id=\"why-field-screening-matters\"><span class=\"ez-toc-section\" id=\"Why_Field_Screening_Matters\"><\/span>Why Field Screening Matters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>PFAS contamination at industrial sites, military installations, and airports is one of the more complex environmental problems of the current generation. Decades of fire-fighting foam usage, manufacturing operations, and waste disposal have left these compounds in soils, sediments, and groundwater. Characterizing the extent of that contamination the traditional way means collecting hundreds of soil and sediment samples, shipping them to analytical laboratories, and waiting weeks for results. Expensive, slow, and often an incomplete picture of how the contamination is distributed.<\/p>\n<p>Laser-induced breakdown spectroscopy gives field crews a faster path. A high-energy laser pulse focused on a sample surface creates a micro-plasma, and the instrument reads the emitted light to determine elemental composition in real time. Because every PFAS molecule contains fluorine, elevated fluorine in soil is a rapid proxy for PFAS contamination. Shanghai ChiMay has developed field-deployable sensor solutions that pair LIBS fluorine detection with complementary water quality measurements, so a site gets characterized in a single field deployment.<\/p>\n<h2 id=\"libs-technology-fundamentals-for-pfas-detection\"><span class=\"ez-toc-section\" id=\"LIBS_Technology_Fundamentals_for_PFAS_Detection\"><\/span>LIBS Technology Fundamentals for PFAS Detection<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"plasma-generation-and-elemental-emission\"><span class=\"ez-toc-section\" id=\"Plasma_Generation_and_Elemental_Emission\"><\/span>Plasma Generation and Elemental Emission<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>LIBS works like this: a pulsed laser\u2014typically nanosecond pulse durations with energies between <strong>10 and 100 millijoules<\/strong>\u2014focuses on a sample surface. The energy density, approximately <strong>1 GW per square centimeter<\/strong>, vaporizes a tiny amount of material into a plasma reaching <strong>10,000 to 20,000 Kelvin<\/strong>. As the plasma cools, excited atoms and ions emit light at wavelengths characteristic of their elemental composition.<\/p>\n<p>For PFAS work, the key spectral signatures are the fluorine emission lines at <strong>685.6 nanometers<\/strong> and <strong>686.4 nanometers<\/strong>. They are weaker than emissions from alkali metals or alkaline earth elements, but modern intensified charge-coupled device detectors and near-infrared-optimized spectrometers pick them up reliably. According to research published by the <strong>Society for Applied Spectroscopy<\/strong>, LIBS fluorine detection limits in soil matrices range from <strong>50 to 200 ppm<\/strong>, depending on moisture content, particle size, and soil mineralogy.<\/p>\n<h3 id=\"field-deployment-considerations\"><span class=\"ez-toc-section\" id=\"Field_Deployment_Considerations\"><\/span>Field Deployment Considerations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Field LIBS work has its own quirks. Soil moisture is the big one\u2014water absorbs laser energy and cuts ablation efficiency. Field operators typically dry samples at ambient temperature or use portable sample preparation units that grind and sieve material to a consistent particle size below <strong>250 micrometers<\/strong>. Atmospheric humidity can also interfere with fluorine detection, which means purged optical paths or algorithmic correction.<\/p>\n<p>Shanghai ChiMay&rsquo;s field approach pairs LIBS fluorine detection with complementary sensors that characterize the soil matrix. The in-line conductivity meter measures pore water salinity, which helps distinguish PFAS-related fluorine from naturally occurring fluoride minerals. The pH electrode characterizes soil acidity, which influences PFAS mobility and bioavailability. Fluorine numbers alone do not tell the whole story; these readings fill it in.<\/p>\n<h2 id=\"from-spot-samples-to-spatial-mapping\"><span class=\"ez-toc-section\" id=\"From_Spot_Samples_to_Spatial_Mapping\"><\/span>From Spot Samples to Spatial Mapping<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"grid-based-screening-methodology\"><span class=\"ez-toc-section\" id=\"Grid-Based_Screening_Methodology\"><\/span>Grid-Based Screening Methodology<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A typical LIBS-based site characterization follows a systematic grid. Node spacing depends on site size and expected contamination heterogeneity: <strong>5 to 10 meters<\/strong> at brownfield sites with known point sources; <strong>25 to 50 meters<\/strong> at larger installations such as airports or military bases for initial screening, with grid refinement in areas showing elevated fluorine concentrations.<\/p>\n<p>At each grid node the instrument fires multiple laser shots across the sample surface and averages them with statistical uncertainty. Modern instruments process <strong>50 to 100 shots per sample in under 30 seconds<\/strong>, so crews can screen <strong>100 or more locations per field day<\/strong>. Compare that with traditional campaigns, where collecting, preserving, and shipping 100 samples takes several field days followed by weeks of laboratory analysis.<\/p>\n<h3 id=\"data-integration-and-visualization\"><span class=\"ez-toc-section\" id=\"Data_Integration_and_Visualization\"><\/span>Data Integration and Visualization<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Spatial data from LIBS screening feeds directly into geographic information system platforms for contamination mapping. Contour plots of fluorine concentration reveal plume boundaries, hot spots, and migration pathways. Combined with groundwater monitoring well data, those maps guide the placement of treatment systems such as permeable reactive barriers or in-situ chemical oxidation injection points.<\/p>\n<p>Shanghai ChiMay&rsquo;s 4-in-1 Multi-Parameter Sensor adds groundwater characterization that lines up with the soil LIBS grid. Measure pH, conductivity, ORP, and temperature at monitoring wells across the same grid used for soil screening, and you build a three-dimensional picture of PFAS distribution from the vadose zone through the saturated aquifer. Field studies conducted by the <strong>US Army Corps of Engineers<\/strong> indicate this integrated approach reduces confirmatory laboratory samples by <strong>40 to 60 percent<\/strong>.<\/p>\n<h2 id=\"cost-benefit-analysis\"><span class=\"ez-toc-section\" id=\"Cost-Benefit_Analysis\"><\/span>Cost-Benefit Analysis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"traditional-versus-libs-based-characterization\"><span class=\"ez-toc-section\" id=\"Traditional_Versus_LIBS-Based_Characterization\"><\/span>Traditional Versus LIBS-Based Characterization<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Side by side, the economics are hard to argue with. A typical PFAS site characterization using traditional methods might involve:<\/p>\n<ul>\n<li><strong>Field sampling<\/strong>: 3 to 5 person-days at USD 1,500 to USD 2,500 per day<\/li>\n<li><strong>Sample shipping and chain-of-custody<\/strong>: USD 500 to USD 1,000<\/li>\n<li><strong>Laboratory analysis<\/strong>: USD 300 to USD 600 per sample for full PFAS target list analysis<\/li>\n<li><strong>Total for 100 samples<\/strong>: USD 35,000 to USD 70,000 with a 4 to 8-week turnaround<\/li>\n<\/ul>\n<p>The LIBS route for the same site:<\/p>\n<ul>\n<li><strong>Field screening<\/strong>: 1 to 2 person-days with portable LIBS at USD 2,000 to USD 3,500 per day<\/li>\n<li><strong>No shipping costs<\/strong>: analysis occurs on-site<\/li>\n<li><strong>Targeted confirmation sampling<\/strong>: 10 to 20 laboratory samples at key decision points, costing USD 3,000 to USD 12,000<\/li>\n<li><strong>Total<\/strong>: USD 7,000 to USD 19,000 with same-day preliminary results<\/li>\n<\/ul>\n<p>The <strong>60 to 80 percent cost reduction<\/strong> is why LIBS keeps looking attractive for the thousands of PFAS-contaminated sites awaiting characterization worldwide.<\/p>\n<h2 id=\"regulatory-acceptance-and-quality-assurance\"><span class=\"ez-toc-section\" id=\"Regulatory_Acceptance_and_Quality_Assurance\"><\/span>Regulatory Acceptance and Quality Assurance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Regulators increasingly accept LIBS data for screening-level decisions, though confirmatory laboratory analysis remains required for final compliance determinations. The <strong>US EPA<\/strong> published guidance in 2023 acknowledging the role of field screening technologies in accelerating site characterization, provided that appropriate quality assurance protocols are followed\u2014analysis of certified reference materials, blind duplicates, and method detection limit verification at the start of each field campaign.<\/p>\n<p>Shanghai ChiMay supports those requirements with instrument calibration protocols, reference material tracking, and automated data logging that meets regulatory documentation standards. Combined with water quality measurements from Shanghai ChiMay sensors, the LIBS screening package becomes a defensible data set that regulators can review with confidence.<\/p>\n<h2 id=\"the-bottom-line\"><span class=\"ez-toc-section\" id=\"The_Bottom_Line\"><\/span>The Bottom Line<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>LIBS is a real step change in how fast\u2014and how cheaply\u2014PFAS sites get characterized. By detecting fluorine, the universal element in all PFAS compounds, portable instruments give field crews the screening data needed to aim targeted laboratory analysis and accelerate remediation planning. Hook LIBS screening to integrated water quality monitoring from Shanghai ChiMay, and environmental professionals get the comprehensive site characterization data needed to make informed decisions about PFAS contamination management.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Laser-Induced Breakdown Spectroscopy for Rapid PFAS Site Characterization: The Shanghai ChiMay Field Approach The Short Version Laser-induced breakdown spectroscopy (LIBS) can detect fluorine, the signature element in all PFAS compounds, at concentrations below 100 parts per million in soil and sediment matrices within seconds. The US Department of Defense manages over 18,000 known or suspected&#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":[158],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"fr","enabled_languages":["en","es","fr","ru","ar"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/posts\/31409"}],"collection":[{"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/comments?post=31409"}],"version-history":[{"count":0,"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/posts\/31409\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/media?parent=31409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/categories?post=31409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chimaytech.net\/fr\/wp-json\/wp\/v2\/tags?post=31409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}