Co-detection method for 17 perfluorinated compounds in algae, daphnia and fish bodies

• Main Authors: ZHANG HONGXIA, HU SHUANGQING, ZHANG HONGCHANG, CAO YAN, ZHU YING, ZHAO QINGJIE, LI ZHENJIN
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a co-detection method for 17 perfluorinated compounds in algae, daphnia and fish bodies, and belongs to the technical field of perfluorinated compound detection, and the method comprises the following steps: sample treatment and preservation: respectively treating algae, daphnia and fish meat; an ion pair extraction method; respectively loading samples on algae, daphnia, fish meat, gills and fish livers; the detection method comprises the following steps: carrying out mass spectrometry through an analytical instrument, and carrying out mass spectrometry under the conditions of a multiple reaction ion monitoring mode, an electrospray negative ion scanning mode, an ion source temperature of 150 DEG C, a shedding agent gas temperature of 500 DEG C, a peptizing agent gas flow velocity of 1000 L.h <-1 >, a capillary voltage of 3 kV, nitrogen as a desolventizing agent gas and a taper hole gas, and argon as a collision gas; calculating according to a formula MDL = t (n-1, 0.99) * S by measuri