Gas-liquid chromatography-mass spectrometry of trimethylsilyl ethers of bile alcohols.

Gas Chromatography and Mass Spectrometry of Polybrominated Diphenyl Ethers

Gas-liquid chromatography of bile acids: a new liquid phase for both acetate and trimethylsilyl derivatives.

Polymetaphenoxylene (PPE-20) has been found to be more useful than cyclohexane dimethanol succinate (HI-EFF-8-BP) for trimethylsilyl derivatives of bile acids and to be preferable to trifluoropropyl substituted silicone (OV-210, QF-1) for analysis of their acetate derivatives.

Applications of Hadamard transform to gas chromatography/mass spectrometry and liquid chromatography/mass spectrometry.

Successful application of the Hadamard transform (HT) technique to gas chromatography/mass spectrometry (GC/MS) and liquid chromatography/mass spectrometry (LC/MS) is described. Novel sample injection devices were developed to achieve multiple sample injections in both GC and LC instruments. Air pressure was controlled by an electromagnetic valve in GC, while a syringe pump and Tee connector we...

The Coupling of Gas and Liquid Chromatography with Mass Spectrometry¤

The coupling of gas and liquid chromatography with mass spectrometry is addressed from the historical point of view. This paper discusses the more important coupling interfaces developed for GC/MS and LC/MS, including the moving belt interface, direct liquid introduction interfaces, thermospray and atmospheric pressure ionization interfaces such as atmospheric pressure chemical ionization and e...

Gas Chromatography - Mass Spectrometry