Development of analytical procedures for determination of total chromium by quadrupole ICP?MS and high-resolution ICP?MS, and hexavalent chromium by HPLC?ICP?MS, in different materials used in the automotive industry

2003 ◽  
Vol 377 (4) ◽  
pp. 685-694 ◽  
Author(s):  
F. S�by ◽  
M. Gagean ◽  
H. Garraud ◽  
A. Castetbon ◽  
O. F. X. Donard
2008 ◽  
Vol 249 (1-2) ◽  
pp. 155-166 ◽  
Author(s):  
Jérôme Chmeleff ◽  
Ingo Horn ◽  
Grit Steinhoefel ◽  
Friedhelm von Blanckenburg

2011 ◽  
Vol 2011 (1) ◽  
pp. 000345-000351
Author(s):  
Sophia S. Lau ◽  
Joe P. Kuczynski

Due to the adverse health effects of hexavalent chromium, Cr(VI), pigments and other materials containing Cr(VI) were largely banned for use in electrotechnical products under the EU RoHS Directive [1]. While there are several effective methods to determine the presence of total chromium in electrotechnical plastic matrices, a validated compliance test method that is capable of discerning Cr(VI) from the non-regulated forms of Cr(III) is not yet available. One of the challenges in developing a standardized compliance test for Cr(VI) is the low recovery of Cr(VI) compounds from polymer matrices This study identified antimony trioxide (ATO), a common synergist added to enhance the ignition resistance of brominated flame retardants (BFRs), as a source of matrix interference in the quantitative determination of hexavalent chromium extracted from polymer matrices. ATO reduces hexavalent chromium to trivalent chromium prior to complexation of Cr(VI) with diphenylcarbazide (DPC) leading to false negatives. EDTA was found to be an efficient reagent for Sb(III) complexation, thereby suppressing the reduction of Cr(VI) and enabling quantitative Cr(VI) determination in the presence of ATO.


2014 ◽  
Vol 228 (4-5) ◽  
Author(s):  
Axel Pramann ◽  
Olaf Rienitz ◽  
Janine Noordmann ◽  
Bernd Güttler ◽  
Detlef Schiel

AbstractHigh resolution multicollector inductively coupled plasma mass spectrometry (HR-MC-ICP-MS) was applied for the determination of the isotopic composition and molar mass of a silicon crystal material (“Si28”) highly enriched in the


Talanta ◽  
2019 ◽  
Vol 199 ◽  
pp. 228-237 ◽  
Author(s):  
Stanislas Grassin-Delyle ◽  
Marie Martin ◽  
Ons Hamzaoui ◽  
Elodie Lamy ◽  
Christophe Jayle ◽  
...  

2006 ◽  
Vol 21 (8) ◽  
pp. 734 ◽  
Author(s):  
Sander H. J. M. van den Boorn ◽  
Pieter Z. Vroon ◽  
Coos C. van Belle ◽  
Bas van der Wagt ◽  
Johannes Schwieters ◽  
...  

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