Zenkevich, I. G.;Leleev, E. published 《Specific Features of the Gas Chromatographic Analysis of Samples in High-Boiling Solvents Using Capillary Columns with a Low Split Ratio of the Carrier Gas Flow》 in 2020. The article was appeared in 《Journal of Analytical Chemistry》. They have made some progress in their research.Recommanded Product: 93-92-5 The article mentions the following:
Abstract: Gas chromatog. anal. of samples in high-boiling polar organic solvents is characterized by several features. First, the resolution of the components depends on the injector temperature (Tinj), which should not be lower than the b.p. (Tbp) of the solvent. Second, the retention indexes (RIs) of the components eluted before the polar solvent zone are somewhat overestimated compared to the retention indexes of the components eluted after this zone. And, third, the so-called “discrimination effects ” are observed for these samples, first of all, the dependence of the absolute peak areas of the components from Tinj. It is confirmed that such dependence does not affect the results of quant. anal. by the method of internal normalization. Nevertheless, the possibility of using application of this and other methods is recommended, and the condition of Tinj ≥ Tbp should be satisfied to verify the thermal stability and mutual compatibility of the components of the test samples. These features are set in the anal. of both a solution of model analytes in 1,3-butanediol (Tbp = 207°C) and a sample of the food flavoring, which is a solution of a complex mixture of components in dipropylene glycol (Tbp 222-236°C). The reason for these effects is a slowdown in the process of sample evaporation and dynamic modification of the stationary phase of the chromatog. column by high-boiling polar solvents. And 1-Phenylethyl acetate (cas: 93-92-5) was used in the research process.
1-Phenylethyl acetate(cas:93-92-5) is a carboxylic ester. Recommanded Product: 93-92-5 It may be prepared by acetylation of methyl phenyl carbinol; from benzaldehyde by reacting with magnesium methyl bromide and subsequent acetylation; from 1-bromoethylbenzene and silver acetate in acetic acid.
Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics