Method for detecting residual amount of potassium perfluorobutanesulfonate

The invention provides a method for detecting the residual amount of potassium perfluorobutanesulfonate, which comprises the following steps of: rapidly extracting potassium perfluorobutanesulfonate in plastics, coatings and textiles, dissolving a sample by using dichloromethane, removing non-polar...

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Bibliographic Details
Main Authors XIONG XING, LUO BINHAN, CHEN XIAOWEI
Format Patent
LanguageChinese
English
Published 07.08.2020
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Summary:The invention provides a method for detecting the residual amount of potassium perfluorobutanesulfonate, which comprises the following steps of: rapidly extracting potassium perfluorobutanesulfonate in plastics, coatings and textiles, dissolving a sample by using dichloromethane, removing non-polar impurities in a sample matrix by using an HLB (Hydrophile-Lipophile Balance) extraction column, anddetecting by using liquid chromatography-tandem mass spectrometry. The reaction is rapid and the detection time is shortened. And the use of organic reagents is reduced, so that the method is more environment-friendly. Compared with other detection methods, the method has the advantages that new detection ion pairs are adopted for screening, the ion proportion is reasonable, the response is more sensitive, the result accuracy is higher, the reproducibility is better, and the requirements of relevant provisions of laboratories can be better met. 本发明提出全氟丁基磺酸钾残留量的检测方法,快速提取塑料,涂料和纺织品中全氟丁基磺酸钾,用二氯甲烷溶解样品,HLB萃取柱去除样品基质中的非极性杂质,再
Bibliography:Application Number: CN202010347615