Table 4 The elution gradient program of UPLC-MS/MS

From: A novel pretreatment method for fluorinated alternatives in soil and sediment using accelerated solvent extraction

Time(min)

Methanol(%)

Ammonium acetate solution(%)

0

30

70

5

65

35

9

95

5

11

95

5

11. 1

30

70

12

30

70

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