Quantifying 64 drugs, illicit substances, and D- and L- isomers in human oral fluid with liquid-liquid extraction

Table 9.

Gradient for separation of 63 ESpositive analytes consisting of a series of linear step gradients over 8 min.

Time (minutes)

Flow (mL/min)

% MPA

% MPB

Curve

0

0.7

93

7

Linear

0.1

0.7

93

7

Linear

3

0.7

60

40

Linear

4.5

0.7

10

90

Linear

6

0.7

10

90

Linear

6.1

0.7

93

7

Linear

7.6

0.7

93

7

Linear

8.02

Stop

 

 

 

Note: electrospray (ES); mobile phase A (MPA); mobile phase B (MPB)

Note: electrospray (ES); mobile phase A (MPA); mobile phase B (MPB)