Výsledky vyhledávání - "Martin H. Mach"

Metal speciation: Survey of environmental methods of analysis

Autor: Martin H. Mach, B. R. Nott, Nina T. Whiddon, Raymond F. Maddalone, Judith W. Scott

Publikováno v: Water, Air, & Soil Pollution. 90:269-279

As part of a recent task under the EPRI Analytical Methods Qualification Program (RP 1851), TRW has surveyed the methods available for monitoring metal species in typical utility aqueous discharge streams. Methods for determining the individual speci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92143f79b7265b2802b39b765411edb1
https://doi.org/10.1007/bf00619287

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Detection of N-Nitrosodimethylamine by Gas Chromatography-Methane Chemical Ionization Mass Spectrometry with Single Ion Monitoring

Autor: A. Pallos, Martin H. Mach

Publikováno v: Analytical Letters. 11:97-102

N-nitrosodimethylamine (NDMA) has been detected at below 50 ppb (50 pg injected) in aqueous solutions by gas chromatography-methane chemical ionization mass spectrometry with single ion monitoring. At lower levels, detection of NDMA is not possible p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1f662604df601b918fa075652596374
https://doi.org/10.1080/00032717808082229

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Analysis of explosives using chemical ionization mass spectroscopy

Autor: Martin H. Mach, Christopher T. Pate

Publikováno v: International Journal of Mass Spectrometry and Ion Physics. 26:267-277

Methane chemical ionization (MeCI) mass spectra of several explosives, including nitrate esters, nitramines, nitroaromatics, and stabilizers, are presented. The predominance of the pseudomolecular ion (M+H)+ greatly facilitates identification of thes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f06e84c37c7c1f132a61c44fa3fab330
https://doi.org/10.1016/0020-7381(78)80029-1

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Oxidation of Aqueous Unsymmetrical Dimethylhydrazine by Calcium Hypochlorite or Hydrogen Peroxide/ Copper Sulfate

Autor: Annette M. Baumgartner, Martin H. Mach

Publikováno v: Analytical Letters. 12:1063-1074

The oxidative destruction of unsymmetrical dimethylhydrazine (UDMH) by a molar excess of Ca(OCl)2 leads mainly to formaldehyde dimethylhydrazone and tetramethyl tetrazene, but not to N-nitrosodi-methylamine (NDMA). An alternate method using H2O2/CuSO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7ad86d35b3326cb995ab628f47a3b8f
https://doi.org/10.1080/00032717908059785

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