Instruction manual

9. Technical Information
9-48
RF-20A/20Axs
9.5 Mobile Phase Characteristics
(1)
Solvent
(*)η ≤ 0.5 cp, B.P. > 45 °C
(**)η ≤ 0.5 cp, B.P. < 45 °C
(2)
Source
(3)
UV
Cutoff
(4)
R.I.
25°
Boiling
Point
(°C)
Viscosity
(cP,
25 °C)
(5)
p'
(6)
e°
a
(7)
Water
Solubility
%
W
in
20 °C
Solvent
(8)
Dielectric
Constant
e
20
(9)
p'+
0.25e
1
FC-78(*)
FC-75(Fluorescent solvent)
FC-43
(LC
specific)
210 nm
210
(opaque
under
210)
1.267
1.276
1.291
50
102
174
0.4
0.8
2.6
< -2
< -2
< -2
-.25
-.25
-.25
1.88
1.86
1.9
p' and
Dielect.
const
(Function
proportional
to strength)
2
Isooctane(*)
(2,2,4-tri methylpentane)
LC 197 1.389 99 0.47 0.1 0.01 0.011 1.94 0.1
3 n-Heptane(*) LC 195 1.385 98 0.40 0.2 0.01 0.010 1.92 0.5
4 n-Hexane(*) LC 190 1.372 69 0.30 0.1 0.01 0.010 1.88 0.5
5 n-Pentane(**) LC 195 1.355 36 0.22 0.0 0.00 0.010 1.84 0.5
6 Cyclohexane LC 200 1.423 81 0.90 -0.2 0.04 0.012 2.02 0.5
7 Cyclopentane(*) LC 200 1.404 49 0.42 -0.2 0.05 0.014 1.97 0.6
8 I-Chlorobutane(*) LC 220 1.400 78 0.42 1.0 0.26 7.4 2.8
9 Carbon disulfide LC 380 1.624 46 0.34 0.3 0.15 0.005 2.64 1.7
10 2-Chloropropane(**) LC 230 1.375 36 0.30 1.2 0.29 9.82 3.7
11 Carbon tetrachloride LC 265 1.457 77 0.90 1.6 0.18 0.008 2.24 2.3
12 n-Butyl ether 220 1.397 142 0.64 2.1 0.25 0.19 2.8 2.4
13 Triethylamine 1.398 89 0.36 1.9 0.54 2.4 2.4
14 Bromoethane(*) 1.421 38 0.38 2.0 0.35 9.4 4.3
15 i-Propyl ether(*) 220 1.365 68 0.38 2.4 0.28 0.62 3.9 3.2
16 Toluene LC 285 1.494 110 0.55 2.4 0.29 0.046 2.4 2.9
17 p-Xylene 290 1.493 138 0.60 2.5 0.26 2.3 3.0
18 Chlorobenzene 1.521 132 0.75 2.7 0.30 5.6 4.1
19 Bromobenzene 1.557 156 1.04 2.7 0.32 5.4 4.1
20 Iodobenzene 2.8 0.35
21 Phenyl ether 1.580 258 3.3 3.4 3.7 3.7
22 Phenetole 1.505 170 1.14 3.3 4.2 4.9
23 Ethyl ether(**) LC 218 1.350 35 0.24 2.8 0.38 1.3 4.3 4.0
24 Benzene LC 280 1.498 80 0.60 2.7 0.32 0.058 2.3 3.6
25 Tricresy phosphate
26 Ethyl iodide 1.510 72 0.57 2.2 7.8 4.2
27 n-Octanol 205 1.427 195 7.3 3.4 0.5 3.9 10.3 5.8
28 Fluorobenzene 1.46 85 0.55 3.1 5.4 4.6
29 Benzylether 1.538 288 4.5 4.1
30 Methylene chloride(**) LC 233 1.421 40 0.41 3.1 0.42 0.17 8.9 5.6
31 Anisole 1.514 154 0.9 3.8 4.3 4.6
32 i-Pentanol 1.405 130 3.5 3.7 0.61 9.2 14.7 7.3
33 1,2-Dichloroethane LC 228 1.442 83 0.78 3.5 0.44 0.16 10.4 6.3
34 t-Butanol 1.385 82 3.6 4.1 0.7 miscible 12.5