The direct determination of the enantiomeric purity of halocarboxylic acids is described. The method used involves gas chromatographic separation of the corresponding tert-butylamides on deactivated glass or fused-silica capillaries coated with Chirasil-Val. Both the influence of the amide moiety on
Separation and determination ofm-phenoxybenzaldehyde reaction products by capillary gas chromatography
β Scribed by Husain, Sajid ;Sarma, Ponnapalli Nageswara ;Swamy, Sankarayya
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 210 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
Abstract
A capillary GC method employing an internal standard has been developed and successfully used for quantitative determination both of the raw materials used for the manufacture of mβphenoxybenzaldehyde and for the components of the reaction mixtures obtained at various stages of the development of the process. A complete analysis can be performed in a single temperature programmed run.
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High resolution of capillary columns is generally attributed to the length of the column. In practice, several fi3ctors are restrictive in pesticide analysis. If the length of the column increases, the analysis time becomes longer and the iresidence time of the compound higher. This can cause some a