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Trace analysis of complex organic mixtures using capillary gas-liquid chromatography and the dynamic solvent effect

✍ Scribed by Apps, P. J. ;Pretorius, V. ;Lawson, K. H. ;Rohwer, E. R. ;Centner, M. R. ;Viljoen, H. W. ;Hulse, G.

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
478 KB
Volume
10
Category
Article
ISSN
0935-6304

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✦ Synopsis

A sampling system for high resolution gas-liquid chromatography, based on the dynamic solvent effect, is described. Volatiles areaccumulated off -line in a concentrator/injector and delivered to the column using an on-line inlet. Volatiles may be accumulated from gaseous or liquid matrices; they may be transferred to these by gas sparging or solvent extraction of any type of sample. The sampling technique is quantitatively precise; e.g. coefficients of variation of peak percentage areas betterthan5Yofora rangeof solutesat aconcentrationof 2:lO'.

Examples of the application of the sampling system are presented.

πŸ“œ SIMILAR VOLUMES

High precision trace analysis in capilla
High precision trace analysis in capillary gas-liquid chromatography using an inlet based on the static solvent effect
✍ Lawson, K. H. ;Pretorius, V. ;Apps, P. J. πŸ“‚ Article πŸ“… 1987 πŸ› John Wiley and Sons 🌐 English βš– 365 KB

A sample inlet, based on the static solvent effect has been designed and constructed. The inlet can handle samples up to 20 1-11 which allows for the detection, using an F.I.D., of constituents in the parts per billion range. The reproducibility of the inlet in terms of peak percentage area is aroun