Mobile phase compressible

Effect of Mobile Phase Compressibility On the HETP Equation for a Packed GC Column... 

Mobile Phase Compressibility Its Effect on the Interpretation of Chromatographic Data in LC... 

Corrected Retention Volume V, Retention volume corrected for mobile phase compressibility V,- jv. 

Compressibility User selectable, based on mobile phase compressibility... 

A. D. Jerkovich, J. S. Mellors, J. W. Thompson, and J. W. Jorgenson, Linear velocity surge caused by mobile-phase compression as a source of band broadening in iso-cratic ultrahigh-pressure liquid chromatography, AnaZ. Chem. 77 (2005), 6292-6299. 

Because the mass flow rate of the mobile phase along the column is constant and if the mobile phase compressibility is assumed to be negligible, the mobile... 

The flow can be smoothed by using two pistons which work parallel but in opposite directions. Another design is the use of tandem pistons arranged in series, whereby the first one conveys slightly more than the second. This allows to compensate for mobile phase compressibility and helps to suppress cavitation, i.e. the formation of vapour bubbles during the filling stroke. Some pumps use double-ball check valves with a second seat and ball on top of the first one. The electronics of the pumps are also designed to compensate for the compressibility of the eluent (which fortunately is low, e.g. 1% per 100 bar). 

Mobile phase compressibility correction factor, a factor, applying to a homogeneously filled column of uniform diameter, that corrects for the compressibility of the mobile phase in the column, also called Compressibility Correction Factor. In liquid chromatography the compressibility of the mobile phase is negligible. In gas chromatography, the correction factor can be calculated as ... 

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