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Gas-Phase Detection of Fluorotelomer Alcohols and Other Oxygenated Per- and Polyfluoroalkyl Substances by Chemical Ionization Mass Spectrometry.
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2019-01-01 , DOI: 10.1021/acs.estlett.9b00196 Theran P Riedel 1 , Johnsie R Lang 2 , Mark J Strynar 1 , Andrew B Lindstrom 1 , John H Offenberg 1
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2019-01-01 , DOI: 10.1021/acs.estlett.9b00196 Theran P Riedel 1 , Johnsie R Lang 2 , Mark J Strynar 1 , Andrew B Lindstrom 1 , John H Offenberg 1
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Per- and polyfluoroalkyl substances (PFAS) are incorporated into an ever-increasing number of modern products and inevitably enter the environment and ultimately human bodies. Herein, we show that chemical ionization mass spectrometry with iodide reagent ion chemistry is a useful technique for the detection of fluorotelomer alcohols (FTOHs) and other oxygenated PFAS, including per- and polyfluoro carboxylic acids such as hexafluoropropylene oxide dimer acid. This technique offers direct, high-time resolution measurement capability with parts per trillion by volume (nanograms per cubic meter) gas-phase detection limits. Measurements were taken by direct volatilization of samples without prior processing, allowing for fast measurements and reduced sample treatment compared to established PFAS methods. We demonstrate the utility of this technique by sampling volatile and semivolatile PFAS from fluoro additives and fluoro products to quantify levels of FTOHs and identify additional fluorinated compounds for which standards were unavailable.
中文翻译：
通过化学电离质谱法气相检测氟代端基醇和其他氧化的全氟和多氟烷基物质。
全氟烷基物质和多氟烷基物质（PFAS）被纳入越来越多的现代产品中，不可避免地进入环境，最终进入人体。在这里，我们表明，使用碘化物试剂离子化学的化学电离质谱技术是检测含氟调聚物醇（FTOH）和其他含氧PFAS（包括全氟和多氟羧酸，如六氟环氧丙烷二聚酸）的有用技术。这项技术提供了直接的，高实时分辨率的测量能力，气相检测限达到万亿分之几（按体积计）（毫微克每立方米）。通过直接挥发样品而无需事先处理即可进行测量，与已建立的PFAS方法相比，可以进行快速测量并减少样品处理。
更新日期：2019-04-17
中文翻译：
通过化学电离质谱法气相检测氟代端基醇和其他氧化的全氟和多氟烷基物质。
全氟烷基物质和多氟烷基物质（PFAS）被纳入越来越多的现代产品中，不可避免地进入环境，最终进入人体。在这里，我们表明，使用碘化物试剂离子化学的化学电离质谱技术是检测含氟调聚物醇（FTOH）和其他含氧PFAS（包括全氟和多氟羧酸，如六氟环氧丙烷二聚酸）的有用技术。这项技术提供了直接的，高实时分辨率的测量能力，气相检测限达到万亿分之几（按体积计）（毫微克每立方米）。通过直接挥发样品而无需事先处理即可进行测量，与已建立的PFAS方法相比，可以进行快速测量并减少样品处理。
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