Synthetic phylloquinone was resolved into cis and trans isomers by thin-layer chromatography. The two isomers had identical ultraviolet spectra characteristic of vitamin K$_{1}$ and were ...

The integration of gas chromatography (GC) with vacuum ultraviolet (VUV) spectroscopy has emerged as a powerful analytical approach for the separation and identification of complex chemical mixtures.

In today's foods industry, it is very important to know the level of unsaturation and the relative amounts of cis and trans isomer content in edible oils and fats This is imperative in terms of ...

Gas chromatography (GC) has progressively evolved with the integration of ionic liquids and tailored stationary phases, offering enhanced separation efficiency, increased thermal stability, and ...

Chances are good that most of us will go through life without ever having to perform gas chromatography, and if we do have the occasion to do so, it’ll likely be on a professional basis using a ...