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Identification of Impurities in High-Pure Arsine by Chromatography–Mass-Spectrometry
- Source :
- Journal of Analytical Chemistry. 75:600-607
- Publication Year :
- 2020
- Publisher :
- Pleiades Publishing Ltd, 2020.
-
Abstract
- A method of chromatography–mass spectrometry is used to study the impurity composition of arsine synthesized by the reaction of arsenic chloride with sodium borohydride. Capillary adsorption columns with adsorbents modified silica and polytrimethylsilylpropine is used for the separation of impurities. Impurities are identified by comparing their mass spectra with the NIST database, published data, as well as by reconstructing their structures from fragment ions. Impurities of permanent gases; saturated and unsaturated hydrocarbons C1–C6; chlorinated, oxygenated, and aromatic hydrocarbons; volatile inorganic hydrides; and alkyl derivatives of arsine, trimethyl fluorosilane, carbon sulfur dioxide, and dimethyl sulfide are identified in arsine. Mass spectra of C2H3AsH2, CH3AsHC2H5, and C2H5As2H3 impurities are obtained for the first time.
- Subjects :
- chemistry.chemical_classification
Chemistry
010401 analytical chemistry
Inorganic chemistry
chemistry.chemical_element
010402 general chemistry
Mass spectrometry
01 natural sciences
0104 chemical sciences
Analytical Chemistry
chemistry.chemical_compound
Sodium borohydride
Adsorption
Arsine
Impurity
Mass spectrum
Alkyl
Arsenic
Subjects
Details
- ISSN :
- 16083199 and 10619348
- Volume :
- 75
- Database :
- OpenAIRE
- Journal :
- Journal of Analytical Chemistry
- Accession number :
- edsair.doi...........2c4496e0dea0a91902778d286e8d3859