Table 3.

Fisher ratios calculated after chromatographic alignment using nine different mass spectral (MS) match score minima.

MS Match Score	Unique Mass	Fisher Ratioa	Peak Count
			Group 1	Group 2	Total
2-hexanone
900	58	0.11	21	13	34
800	58	0.37	25	21	46
700	85	U	7	0	7
	58	U	0	4	4
600	58	0.90	2	12	14
	72	4.21	12	11	23
	58	U	4	0	4
500	58	4.36	2	14	16
	58	U	4	0	4
400	58	4.71	3	11	14
300	58	9.27	3	12	15
200	58	U	9	1	10
	58	4.21	2	11	13
	58	3.84	3	3	6
100	58	3.75	2	10	12
	58	U	1	4	5
	58	0.63	8	2	10
Acetophenone
900	105	0.96	35	28	63
800	105	1.31	35	28	63
700	105	1.31	35	28	63
600	105	1.31	35	28	63
500	105	1.31	35	28	63
400	105	1.31	35	28	63
300	105	1.31	35	28	63
200	105	1.31	35	28	63
100	105	1.31	35	28	63

^aU = Undefined