Short communicationSimple gas chromatographic method for the assay of salts of carboxylic acids as their trimethylsilyl derivatives

Add time:09/01/2019    Source:sciencedirect.com

Several potassium and sodium salts of monobasic, dibasic and tribasic organic acids, and sodium and calcium salts of fatty acids were directly silylated by Tri-Sil, a commercially available silylating reagent composed of a mixture of hexamethyldisilazane and trimetylchlorosilane in pyridine. The reaction mixtures were injected directly into a gas chromatograph without any further preparation. Quantitative GC peak area measurements indicated that the yields of trimethylsilyl (TMS) derivatives of the salts and the free acid counterparts were comparable. Identities of the derivatives were confirmed by GC—MS analysis. Carbon chain distributions of the fatty acid salts were determined by GC quantitation of the TMS derivatives formed by direct silylation of the salts and the fatty acids liberated from the salts. The present study indicates that the two results agree with each other favorably.

We also recommend Trading Suppliers and Manufacturers of 4-[(Trimethylsilyl)amino]benzoic acid trimethylsilyl ester (cas 18406-05-8). Pls Click Website Link as below: cas 18406-05-8 suppliers

Prev:Gas chromatographic–mass spectrometric fragmentation study of flavonoids as their trimethylsilyl derivatives: Analysis of flavonoids, sugars, carboxylic and amino acids in model systems and in citrus fruits
Next:Polymer paperWhisker 11. Poly(ester—amide)s derived from vanillic acid and 4-aminobenzoic acid)