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High-resolution field desorption mass spectrometry: Part VII. Explosives and Explosive Mixtures§

✍ Scribed by H.-R. Schulten; W.D. Lehmann

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
898 KB
Volume
93
Category
Article
ISSN
0003-2670

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✦ Synopsis

Standard explosives and technical mixtures of explosives have been investigated by field desorption mass spectrometry. The compounds investigated gave intense molecular ions or protonated molecules and structurally significant fragmentation. For comparison, the corresponding electron impact and chemical ionization mass spectrometry data are reported. Emission-controlled field desorption. photographic detection, and accurate mass measurements enabled the components of the technical mixtures to be identified. An example of the determination of an additive in a technical product by field desorption mass spectrometry and stable isotope dilution is given. The use of these techniques for quahty control of explosives and for forensic investigations appears to be promising.

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Use of a time averaging computer for high resolution field desorption mass spectrometry
✍ Gerald L. Peele; David A. Brent 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 330 KB 👁 2 views

Field desorption mass spectra often contain few peaks, the largest of which are [MI: and [M+H]' ions. Because of this lack of fragmentation accurate mass measurement is of primary concern in field desorption mass spectrometry. Although total ion yield per quantity of sample may rival electron impact