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Unit conversions in chromatography

Solvent viscosity

VIscosity dependance on solvent mixture composition

% of water Viscosity (MeOH/water) Viscosity (AcCN/water)
0 0.65 0.35
10 0.95 0.50
20 1.20 0.55
30 1.60 0.70
40 1.75 0.80
50 1.90 0.90
60 1.80 1.00
70 1.75 1.05
80 1.65 1.10
90 1.40 1.05
100 1.00 1.00

Chromatography tables

Capillary selection for various flowrates

Column selection in dependance on injection volume and its capacity

Mobile phase aditivum UV cutoff

pKa of acidic buffers at HPLC for mobile phase preparation

pKb of Bases at HPLC for mobile phase preparation

Pressure conversion

Pressure estimation in dependance on particle size, diameter, and column length

Viscosity of solvent mixtures

Solvent characteristics