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【ACE Excel 色譜柱】LC-MS/MS法測(cè)定全氟酸
Perfluoro acids by LC-MS/MS
ACE Excel 2 C18 2μm, 50 x 2.1mm
Gradient analysis
A = 2mM NH4OAc, 0.1% acetic acid/CH3CN (95:5)
B = 2mM NH4OAc, 0.1% acetic acid/CH3CN (5:95)
T (mins) % B T (mins) %B
0 25 7.5 95
0.5 25 8.0 25
5.5 95 10.0 25
Flow rate: 0.5ml/min
Column temperature: 40°C
Injection volume: 20μl
AB SCIEX triple quad 5500
Negative ESI MRM
Source temperature: 450°C
IonSpray voltage: -2400V
Peak ID Analyte
1 Heptafluorobutyric acid
2 Perfluorohexanoic acid
3 Perfluorobutylsulphonic acid
4 Perfluoroheptanoic acid
5 Perfluorooctanoic acid
6 Perfluorohexylsulphonic acid
7 Perfluorononanoic acid
8 Perfluorodecanoic acid
9 Perfluorooctanesulphonic acid