Speciation analysis of the antirheumatic agent Auranofin and its thiol adducts by LC/ESI-MS and LC/ICP-MS

2012 ◽  
Vol 27 (6) ◽  
pp. 975 ◽  
Author(s):  
Anastasia Albert ◽  
Christine Brauckmann ◽  
Franziska Blaske ◽  
Michael Sperling ◽  
Carsten Engelhard ◽  
...  
Keyword(s):  
Speciation Analysis ◽  
Esi Ms ◽  
Icp Ms ◽  
Antirheumatic Agent

scholarly journals An ICP-MS, ESI-MS and molecular modelling investigation of homogeneous gallium affinity tagging (HMAT) of phosphopeptides

2013 ◽  
Vol 341-342 ◽  
pp. 18-27 ◽  
Author(s):  
Claire L. Camp ◽  
Eslam M. Moustafa ◽  
Helen J. Reid ◽  
Barry L. Sharp ◽  
Tamer Shoeib
Keyword(s):  
Molecular Modelling ◽  
Esi Ms ◽  
Icp Ms

scholarly journals Mercury determination and speciation analysis in surface waters

2012 ◽  
Vol 10 (4) ◽  
pp. 1175-1182 ◽  
Author(s):  
Elisaveta Mladenova ◽  
Ivanka Dakova ◽  
Dimiter Tsalev ◽  
Irina Karadjova
Keyword(s):  
Surface Waters ◽  
Inductively Coupled Plasma ◽  
Mechanical Stability ◽  
Solid Phase ◽  
Chemical Vapor ◽  
Speciation Analysis ◽  
Regeneration Ability ◽  
Mercury Species ◽  
Icp Ms ◽  
Relative Standard

AbstractA sorbent L-cysteine grafted silica gel has been evaluated for separation and enrichment of dissolved inorganic i-Hg(II) and methylmercury CH3Hg(I) from surface waters at sub-µg L−1 concentrations. Chemical parameters for mercury species enrichment and separation have been optimized. Analytical schemes for the determination of Hg species, using selective column solid phase extraction (SPE) with continuous flow chemical vapor generation atomic absorption spectrometry (CF-CVG-AAS) or inductively coupled plasma-mass spectrometry (ICP-MS) were developed. Possibilities for on-site SPE enrichment were demonstrated as well. The limits of quantification were 1.5 and 5 ng L−1 for dissolved i-Hg(II) and CH3Hg(I) by CF-CVG-AAS and 1 and 2.5 ng L−1 by ICP-MS with relative standard deviations between 7–12% and 7–14%, respectively. The chemically modified SPE sorbent has demonstrated high regeneration ability, chemical and mechanical stability, acceptable capacity and good enrichment factors. Results for total dissolved mercury were in reasonable agreement with those from independent analyses by direct ICP-MS determinations for river waters and for estuarine water certified reference material.

scholarly journals Determination of Specific Iron Chelator by Using LC-ICP-MS and LC-ESI-MS

2015 ◽  
Vol 30 ◽  
pp. 256-261 ◽  
Author(s):  
Khairul Nizam Mohamed ◽  
Martha Gledhill
Keyword(s):  
Iron Chelator ◽  
Esi Ms ◽  
Icp Ms
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