272 / 658
RT:
2.00 - 4.00
SM:
3G
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
Time (min)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
THC-COOH neg
RT: 3.06
Figure 1. Ion chromatogram of 7.8 ng/mL urine calibration standard
RT:
2.00 - 4.00
SM:
3G
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
Time (min)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
THC-COOH neg
RT: 3.06
Figure 2. Ion chromatogram of 1000 ng/mL urine calibration standard
[M-H] -
[M-H] -