Method for detecting perfluorinated compounds in water by adopting solid-phase extraction membrane extraction-high performance liquid chromatography-triple quadrupole mass spectrometry

The invention discloses a method for detecting perfluorinated compounds in water by adopting solid-phase extraction membrane extraction-high performance liquid chromatography tandem triple quadrupole mass spectrometry, which comprises the following steps of: enriching the perfluorinated compounds in a water body by using an anion exchange solid-phase extraction membrane, and quickly passing a water sample through the solid-phase extraction membrane at a high flow rate; and then detecting by adopting a high performance liquid chromatography tandem mass spectrometer, and quantitatively determining the perfluorinated compounds in the water body by adopting an internal standard method. The method has the advantages of simple operation, good reproducibility and high sensitivity, and can rapidly determine the content of the perfluorinated compounds in the water body. 本发明公开了采用固相萃取膜萃取-高效液相色谱串联三重四极杆质谱检测水中全氟化合物的方法，以阴离子交换固相萃取膜实现水体中全氟化合物的富集，水样以高的流速快速通过固相萃取膜，然后采用高效液相色谱串联质谱仪检测，内标法定量实现水体中全氟化合物的测定。该方法具有操作简单、重现性好、灵敏度高、能快速测定水体