Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Brenda S. Sheppard"'
Publikováno v:
Applied Spectroscopy. 44:712-715
A He/Ar mixed-gas plasma has been investigated as an optical emission source for the determination of iodine at 2063 Angstroms. The effects of adding varying amounts of He to an argon plasma were studied. Optimal conditions were found with a total pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e5de0f42aa49844981d43a9c39c57bc
https://doi.org/10.1366/0003702904087299
https://doi.org/10.1366/0003702904087299
Publikováno v:
Analytical chemistry. 63(14)
Supercritical fluid chromatography coupled with inductively coupled plasma mass spectrometry shows high potential for the determination at ultratrace levels of organometallic compounds of environmental interest. In this study the determination of org
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05b37d41011fd0485befdd48dcb1d9a4
https://pubmed.ncbi.nlm.nih.gov/1928724
https://pubmed.ncbi.nlm.nih.gov/1928724
Autor:
Joseph A. Caruso, Brenda S. Sheppard
Publikováno v:
Journal of Analytical Atomic Spectrometry. 9:145
The use of mixed-gas, helium and nitrogen plasmas as alternative sources for plasma mass spectrometry is discussed in this paper. These plasmas are used to alleviate some of the problems inherent in argon inductively coupled plasma mass spectrometry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9a714819fd971021b82c9b6112dd66f
https://doi.org/10.1039/ja9940900145
https://doi.org/10.1039/ja9940900145
Publikováno v:
The Analyst. 119:1683
A single microwave digestion procedure was developed for use with a variety of seafood products. Inductively coupled plasma atomic emission and mass spectrometry were used to determine the levels of As, Cd and Pb in samples of tuna, salmon, shrimp, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a8f313c2e81a9c27754a785211b5966
https://doi.org/10.1039/an9941901683
https://doi.org/10.1039/an9941901683
Publikováno v:
The Analyst. 117:971
Four As compounds were successfully separated and detected by single-column ion chromatography with inductively coupled plasma (ICP) mass spectrometric detection. The mass spectral interferent ArCl+ was reduced by chromatographically resolving chlori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed60154302d5c897bba7571e9c18ed44
https://doi.org/10.1039/an9921700971
https://doi.org/10.1039/an9921700971
Publikováno v:
Journal of Analytical Atomic Spectrometry. 5:697
An He-Ar mixed gas inductively coupled plasma (ICP) was investigated for use as an ion source for plasma mass spectrometry (MS). The addition of He to Ar produces a plasma capable of ionising high ionisation potential elements more efficiently than t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd9da8fa600b232690e6cbcadfd115c7
https://doi.org/10.1039/ja9900500697
https://doi.org/10.1039/ja9900500697
Publikováno v:
Journal of Analytical Atomic Spectrometry. 5:431
Ion chromatography has been combined with inductively coupled plasma mass spectrometry for the speciation of arsenic compounds commonly found in urine. Ion chromatography was used to eliminate or reduce the mass spectral interference formed from chlo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51fe96df906c929622772923613160a4
https://doi.org/10.1039/ja9900500431
https://doi.org/10.1039/ja9900500431
Autor:
Jiansheng Wang, Joseph A. Caruso, E. Hywel Evans, Wei-Lung Shen, Fred L. Fricke, Brenda S. Sheppard
Publikováno v:
Journal of Analytical Atomic Spectrometry. 5:445
The effects of various matrix constituents, Co, Pb and synthetic ocean water, on analyte signal have been studied. Suppression of the 138Ba+ signal was observed in the presence of each matrix, with the Pb matrix having the greatest effect. These matr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26e36376b2b0ac8e2345b962190ccb81
https://doi.org/10.1039/ja9900500445
https://doi.org/10.1039/ja9900500445
Publikováno v:
Journal of the American Society for Mass Spectrometry. (5):355-361
The effects of various matrix constituents, Cd, Co, Pb, and synthetic ocean water, on analyte ion signal were investigated in He-Ar plasma source mass spectrometry. Analyte ion signal suppressions and enhancements were observed in the presence of var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc1b775ff44ff681b02362c1bebcd18e
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