Statistic evaluation of q test^a.

Analyte	Comparison group	|x̄A − x̄B|	MS	q
Diazepam	1 and 2	0.094	0.001	5.15
	1 and 3	0.225	0.001	12.32
	2 and 3	0.131	0.001	7.18
Chlorpromazine	1 and 2	0.267	0.001	14.62
	1 and 3	0.237	0.001	12.98
	2 and 3	0.030	0.001	1.64
Clozapine	1 and 2	0.175	0.001	9.59
	1 and 3	0.253	0.001	13.86
	2 and 3	0.078	0.001	4.27
Triazolam	1 and 2	0.249	0.002	9.64
	1 and 3	0.013	0.002	0.50
	2 and 3	0.236	0.002	9.14
Alprazolam	1 and 2	0.015	0.006	0.34
	1 and 3	0.230	0.006	5.14
	2 and 3	0.245	0.006	5.48
Estazolam	1 and 2	0.006	0.001	0.33
	1 and 3	0.149	0.001	8.16
	2 and 3	0.155	0.001	8.49

^a1 was acetonitrile group; 2 was methanol group; 3 was 0.1% formic acid acetonitrile water group.