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Table 1 Optimized gradient for LC-MS/MS analysis for the quantification of cysteamine in plasma.

From: A new proof of evidence of cysteamine quantification for therapeutic drug monitoring in patients with cystinosis

Time

% Eluent A

% Eluent B

Flow

0.0

99

1

0.4 mL/min

6.0

80

20

0.4 mL/min

6.5

0

100

0.4 mL/min

8.5

0

100

0.4 mL/min

8.6

99

1

0.4 mL/min

14

99

1

0.4 mL/min