Table 1.

Activity coefficients for infinitely dilute straight chain alkanes and 1-alcohols in specific gas chromatography stationary phases

Odorant	Squalane	Tricresyl phosphate	Poly(vinyl acetate)	Poly(ethylene oxide)	Poly(ethylene glycol)
Ethane	0.33
Butane	0.58	2.0			6.1
Pentane				2.1
Hexane	0.73	2.6	0.030	2.6	12
Heptane			0.040	3.3
Octane	0.80	2.9	0.050	4.1	18
Nonane			0.082	5.2
Decane	0.88	3.6	0.095	6.5	27
Unedecane			0.12	8.0
Dodecane	0.93	4.3	0.15	8.8	42
Tetradecane		5.1	0.23		66
Hexadecane		6.0	0.34		83
Octadecane		7.3			124
Methanol	5.4	1.0	0.0049		0.63
Ethanol	4.1	1.3	0.0058	0.31	0.81
Propanol	3.2	1.2	0.0081	0.29	0.93
Butanol	2.9	1.2	0.0093	0.41	1.1
Pentanol	2.5	1.2	0.011		1.2
Hexanol	2.5	1.2	0.013		1.5
Heptanol	2.5	1.3	0.015		1.8
Octanol	2.6	1.3	0.018		2.2
Decanol			0.026

Squalane, temperature = 373 K and molecular weight = 422.8 g/mol; tricresyl phosphate, temperature = 393 K and molecular weight = 368.4 g/mol; poly(vinyl acetate), temperature = 417 K and molecular weight ≈ 500,000 g/mol; poly(ethylene oxide), temperature = 352 K and molecular weight ≈ 1,000 g/mol; poly(ethylene glycol), temperature = 373 K and molecular weight ≈ 300 g/mol.