. Author manuscript; available in PMC: 2012 Feb 11.

Published in final edited form as: J Chromatogr A. 2010 Nov 16;1218(6):763–777. doi: 10.1016/j.chroma.2010.11.009

Table 5.

The Slopes and intercepts of logk' vs. n_CH2, and ΔG°_CH2 Obtained on Different Stationary Phases

Stationary phases	Slope^a	Intercept^b	R²^c	S.E.^d	ΔG°_CH2^e(cal.mol^-1)
SB C₁₈^f	0.226 _±0.0006	-0.073 _±0.003	0.999985	0.0019	-324 _±0.9
HC-C₈^f	0.195 _±0.0006	0.100 _±0.003	0.999980	0.0014	-280 _±0.9
-SO₃-HC-C₈^g	0.183 _±0.0002	-0.033 _±0.001	0.999997	0.0007	-262 _±0.3
HC-COOH^f	0.147 _±0.0004	-0.003 _±0.002	0.999979	0.0012	-210 _±0.6

The slope of the linear regression of log k' vs. nCH₂ based on the data in Fig. 4

The intercept of the linear regression of log k' vs. nCH₂ based on the data in Fig. 4

The squared correlation coefficient of the linear regression of log k' vs. nCH₂ based on the data in Fig. 4

The standard error of the linear regression of the linear regression of log k' vs. nCH₂ based on the data in Fig. 4

The free energy of transfer per methylene group calculated from Eq. (4) using the corresponding slope given in Table 4.

Chromatographic conditions: 50/50 MeCN/H₂O with 0.1% formic, 5.0 cm × 0.46 cm column, T = 40 °C, F = 1.0 ml/min. Alkylphenone homolog solutes: acetophenone, propiophenone, butyrophenone, valerophenone, hexanophenone.

The data is obtained from reference [49]. Chromatographic conditions: 50/50 MeCN/H₂O with 0.1% formic acid and 10mM TEA.HCl, 5.0 cm × 0.46 cm column, T = 40 °C, F = 1.0 ml/min.