ISSN:
0935-6304
Keywords:
Gas chromatography
;
Capillary, glass
;
Retention index determination, reproducibility and error propagation
;
Retention time measurement of ±0.01% necessary for retention index reproducibility of ±0.05 units
;
Error propagation calculation program for pocket calculator given (HP 67)
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Precise evaluation of the chromatographic data by means of the relative retention will allow the full use of the resolution achieved by capillary columns. In practice, retention-index determination is best suited for this purpose. The reproducibility of retention-index determination strongly depends, among other factors, on the accuracy of retention time measurement. A reproducibility of ±0,05 i.u. can be easily achieved with modern gas chromatographic equipment, provided the retention times can be measured with an accuracy of at least ±0.01%. This can be shown by error propagation analysis of retention-index calculation performed with the aid of a programmable pocket calculator.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jhrc.1240020705
Permalink