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Table 1 Gradient table for the HPLC analysis of 6-methylmercaptopurine

From: Thiopurine S-methyltransferase activity in Nigerians: phenotypes and activity reference values

Time (min)

Acetonitrile (%)

Phosphate buffer (%)

Flow rate (mL/min)

0.00

2

98

1.2

2.00

2

98

1.2

2.50

10

90

1.5

6.00

10

90

1.5

6.05

2

98

1.2