Indirect Determination of Water in Nitroglycerin‐Nitrocellulose Pastes by gas‐liquid chromatography

Abstract

A gas‐liquid chromatographic procedure was developed in connection with the determination of water in nitroglycerin‐nitrocellulose pastes. The method is based on the reaction of water with 2,2‐dimethoxypropane and its conversion to acetone which is subsequently determined. The technique is simple, rapid, and shows good accuracy and precision. A simplified method, which is less accurate but does not involve chromatography, is also proposed.

Determination of dimethyl sulfoxide and dimethyl sulfone in urine by gas chromatography–mass spectrometry after preparation using 2,2‐dimethoxypropane

“…1). DMP has been used for dehydration of small specimens prior to electron microscopy (Muller and Jacks, 1975;Maser and Trimble, 1977;Jones and Gwynn, 1991), light microscopy (Prento, 1978;Zuniga et al, 1994) and staining (Conway and Kiernan, 1998), and to determine the water contents of various materials by GC (Mary, 1969;Blanco et al, 1979;Dix et al, 1989). In addition, in the analysis of some compounds in biological samples by GC, DMP has been used as the sample preparation solution for analysis of diols (Porter and Auansakul, 1982;Smith, 1984;Rodman and Ross, 1986;Flanagan et al, 1987) and as a water scavenger, deproteinizing agent and a methylating agent for analysis of fatty acids (Mason and Waller, 1964;Shimasaki et al, 1977;Tserng et al, 1981;Fedrigo et al, 1999).…”