Fast Liquid Chromatography

Influence of column parameters on peak broadening in high-pressure liquid chromatography

“…Efficiency and Speed of Analysis as a Function of dv. From Equations 6, 7, and 9 and with L = hn ApdpÛ -a n (10) with the constant a = 2000 D (11) if the linear velocity is constant. The most important limitation of a fast liquid chromatographic equipment is its maximum inlet pressure (i.e., the maximum pressure drop across the column Ap).…”

Continuous determination of carbon monoxide by frontal analysis

“…The numerical value of ß Is equal to 1.8 ± 11% for different sieve fractions (where dp > 50 µ and u = 0.5-5 cm/sec), if 50 µ > dp > 20 µ, ß becomes equal to 1.5 ± 10%. In those sieve fractions where dp is equal to [10][11][12][13][14][15][16][17][18][19][20] µ, ß becomes zero.…”

High Pressure Liquid Chromatography

“…Speed and Optimization in Liquid Chrornatography-A number of recent papers dealt with the theoretical treatment of the optimization of chromatographic parameters for fast separations (1,8,17,22,(26)(27)(28). Since the time of separation is a function of a number of parameters, mathematical optimization with respect to all relevant parameters is virtually impossible (28).…”