retention volume

retention volume

[ri′ten·chən ‚väl·yəm]
(analytical chemistry)
In gas chromatography, the product of retention time and flow rate.
References in periodicals archive ?
The relationship between adsorption free energy IG0 and retention volume VN is described as follows [14,15]:
[V.sub.R] signifies the retention volume adjusted to [V.sub.0], while VC indicates column volume and corresponds to 120 mL.
The RI chromatogram shows the peak at circa 14 mL retention volume, which can be securely identified as being associated with the long arm using light scattering data (not shown), decreasing over time as the reaction proceeds.
In order to understand the roughness effect on the COF of PEO coatings better, the oil retention volume of the PEO coatings was calculated for each roughness.
Following the IGC basis [11], the retention volume ([V.sub.g,1]) of a solvent (1) through a column packed with a polymer (3), once injected and gone through the column, can be calculated from retention time measurements by means of Eq.
We observed a maximum lag-time of 33 minutes, a minimum equivalent runoff coefficient of 0.078 and a mean percentage of retention volume of 85%.
Because of the impervious sides and bottom surface of the bioretention system, it could be expected that the infiltration volume would take a large share of the total rainfall and the soil retention water may occupy a much lower percentage, which is proved in Figure 9 with the infiltration volume increasing rapidly with time, while the soil retention volume always fluctuates in the year.
where [V.sub.N,n] and [V.sub.N,ref] are the retention volume for the polar probe and the retention volume for the nonpolar reference line, respectively.
The chromatographic separation effect is demonstrated by an elution curve (chromatogram), which illustrates the dependency of the analytic signal with regard to the retention time or retention volume. Retention time is the time during which a test substance is present in the column.(7)
A number of the original terms were found to he misleading or superfluous, including such terms as corrected retention time, net retention time, total retention volume (time), specific retention volume at 0[degrees]C, relative pressure; and their usage is strongly discouraged.
The company introduced in 1988 a retention program to eligible customers to recognize and reward existing customers, to try to develop a relationship for life, and to improve credit quality while increasing retention volume.
80 m 2 carrier screed with 12 heb 300 l, 9 m, - new infiltration basin as ground basin with 180 m 2 infiltration area and 193 m 3 retention volume, - 116 m enclosure with steel mesh fence, h = 2 m; including manual sliding door system b = 7 m and double-leaf gate, b = 7 m, - approx.