Zobrazeno 1 - 10
of 176
pro vyhledávání: '"P. Tschöpel"'
Publikováno v:
Analytical and Bioanalytical Chemistry. 356:430-434
Countercurrent chromatography has been employed for the purification of solid chemical reagents, such as (NH(4))(2)SO(4), NH(4)HSO(4), NH(4)F and NH(4)Cl from a number of most common metal impurities (Fe, Al, Zn, Cu, Co, Cd, Ni, Cr, Ca, Mg, K) in ord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9509ddcea6514b61181634d974363078
https://doi.org/10.1007/s0021663560430
https://doi.org/10.1007/s0021663560430
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 51:117-126
Different types of microwave induced plasma (MIP) discharge operated in liquid-cooled tubes, namely a glass tube of Duran ® , a quartz tube of Herasil ® , and a very simple demountable discharge tube made of glass and quartz have been investigated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e0a73e929cfd79abfa6415e03a65569
https://doi.org/10.1016/0584-8547(95)01394-6
https://doi.org/10.1016/0584-8547(95)01394-6
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 50:1351-1363
The direct coupling of continuous hydride generation with both Ar and He microwave induced plasmas (MIP) sustained in a surfatron has been optimized for the simultaneous determination of arsenic, antimony and selenium with atomic emission spectrometr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d8d6b4d04410201dbc5c7da34cd3d9b
https://doi.org/10.1016/0584-8547(95)01352-8
https://doi.org/10.1016/0584-8547(95)01352-8
Publikováno v:
Fresenius' Journal of Analytical Chemistry. 351:110-116
ICP-MS has been employed for the analysis of silicon carbide powders in connection with high pressure acid decomposition without and with matrix removal by evaporation. The powder is decomposed by treatment of a 250 mg sample with a mixture of HNO3,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea460c7589bbbde256e0967448b1415a
https://doi.org/10.1007/bf00324299
https://doi.org/10.1007/bf00324299
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 49:1251-1258
The use of inductively coupled plasma mass spectrometry (ICP-MS) for the determination of trace elements in Al2O3 powders is reported. Special interest is given to a preconcentration of the trace elements by on-line coupling of chromatography to ICP-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f59be79cf1ea28049e4a466e2af57c9a
https://doi.org/10.1016/0584-8547(94)80107-x
https://doi.org/10.1016/0584-8547(94)80107-x
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 49:683-690
The influence of the spray chamber temperature and the related aerosol water loading on ArO+ as typical spectral interference in inductively coupled plasma mass spectrometry (ICP-MS) is studied. Therefore, the noise power spectra for the ArO+ have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e64cf152f36f4d7661b241f3f6a48810
https://doi.org/10.1016/0584-8547(94)80061-8
https://doi.org/10.1016/0584-8547(94)80061-8
Autor:
C. Pilger, R. Brandt, José A. C. Broekaert, Günther Tölg, P. Tschöpel, C. Lathen, D. Pollmann
Publikováno v:
Fresenius' Journal of Analytical Chemistry. 349:20-25
The use of plasma atomic spectrometric methods for the analysis of high-purity refractory powders of Al2O3, SiC and ZrO2 used in the production of advanced ceramics is discussed. Special reference is given to the use of combined procedures including
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bee7373fbf2f7e5d59b56328d9251c0
https://doi.org/10.1007/bf00323218
https://doi.org/10.1007/bf00323218
Publikováno v:
J. Anal. At. Spectrom.. 9:1063-1070
The use of inductively coupled plasma mass spectrometry (ICP-MS) for trace element determinations in Al2O3 and SiC powders as well as in compact SiC ceramics, subsequent to grinding to a particle size of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cf1b3b4ca58b54aa887afcde427fefe
https://doi.org/10.1039/ja9940901063
https://doi.org/10.1039/ja9940901063
Publikováno v:
Analytica Chimica Acta. 276:377-384
Argon and helium microwave-induced plasmas (MIPs) operated in a TM 010 Beenakker resonator and in a surfatron were investigated for the determination of hydride-forming elements. The MIPs in both devices were optimized with elemental mercury vapour.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b463352e72afea7ca9bc31b568a89510
https://doi.org/10.1016/0003-2670(93)80408-d
https://doi.org/10.1016/0003-2670(93)80408-d