An aliquot of 0.9 mL pyridine and 0.1 mL BSTFA with 1% TMS
were added to the sample extract, and incubated at 85 C for
30 min. Meanwhile, the each standard solution (0.1 mL, 0.2 mL,
because of the low instrument cost and the high sensitivity
0.4 mL, 0.8 mL, 1.6 mL) added with 0.5 mL internal standard solution
was also derivatized with the above method.
An aliquot of 0.9 mL pyridine and 0.1 mL BSTFA with 1% TMSwere added to the sample extract, and incubated at 85 C for30 min. Meanwhile, the each standard solution (0.1 mL, 0.2 mL,because of the low instrument cost and the high sensitivity0.4 mL, 0.8 mL, 1.6 mL) added with 0.5 mL internal standard solutionwas also derivatized with the above method.
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