| abstract |
The invention belongs to the technical field of detection of fluorine chemical products, and in particular relates to a detection method of trace PFOA in a fluorine-containing polymer emulsion product. Take a sample of the fluoropolymer emulsion in a conical flask, add methanol to vibrate to make it agglomerate, filter the agglomerated product, keep the filtrate, put the filter cake into a paper tube, put it into a Soxhlet extractor, and pour it into The filtrate was added with methanol for extraction. After the extraction, the solution was purified, and then detected by liquid chromatography-mass spectrometry, and the PFOA content was calculated. The processing and detection method has high sensitivity, good reproducibility, short analysis time and high accuracy, and is suitable for the processing and detection of trace PFOA in fluoropolymer emulsion products. |