TABLE 4.

Relative Retention Times of Standard Amino Acids Normalized to Ala and Scaled to the Average Run Time

	494-Ht Instruments (n = 19)			494-cLC Instruments (n = 8)
	494-HT Av RTnAs	494-HT Std Dev of RTnAs	494-HT Av Full RT	494-cLC Av RTnAs	494-cLC Std Dev of RTnAs	494-cLC Av Full RT
D	−0.30	0.03	4.20	−0.30	0.01	6.18	D
N	−0.27	0.02	4.62	−0.27	0.01	6.60	N
S	−0.22	0.01	5.25	−0.23	0.01	7.35	S
Q	−0.20	0.01	5.52	−0.20	0.01	7.69	Q
T	−0.18	0.01	5.75	−0.19	0.01	7.92	T
G	−0.17	0.01	6.00	−0.17	0.00	8.24	G
E	−0.13	0.01	6.48	−0.13	0.00	8.79	E
H	−0.04	0.02	7.69	−0.05	0.01	10.12	H
A	0.00	0.00	8.22	0.00	0.00	10.89	A
R	0.12	0.02	9.78	0.11	0.01	12.54	R
Y	0.16	0.01	10.36	0.16	0.01	13.38	Y
P	0.33	0.00	12.62	0.33	0.00	16.06	P
M	0.38	0.01	13.34	0.38	0.01	16.87	M
V	0.41	0.00	13.66	0.41	0.00	17.24	V
W	0.55	0.01	15.56	0.57	0.01	19.87	W
F	0.63	0.02	16.65	0.63	0.01	20.70	F
I	0.66	0.02	17.09	0.66	0.01	21.20	I
K	0.65	0.03	16.90	0.68	0.01	21.53	K
L	0.70	0.03	17.62	0.70	0.01	21.83	L