✦ LIBER ✦

Determination of trace metals in potassium hydrogenphthalate by inductively coupled plasma mass spectrometry

✍ Scribed by Naoko Shibata; Noriko Fudagawa; Masaaki Kubota

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 788 KB
Volume: 265
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)85159-4

No coin nor oath required. For personal study only.

✦ Synopsis

Metal lmpurltles contamed m high-punty potassmm hydrogenphthalate reagents were determmed by mductwely coupled plasma mass spectrometry (ICP-MS) with sample mtroductlon by electrothermal vaponzatlon (ETV) The lmpurltles were separated from the matrur constituents by Ion-exchange separation usmg Chelex-100 resin before measurement m order to mnumlze the effect of spectroscopic interferences peculiar to ICP-MS Ion exchange-ETV-ICP-MS yielded low detection hmlts m a range l-10 ng g -' for eight elements, which were one or two orders of magnitude better than those obtained by conventional nebuhzatlon WEB) ICP-MS The analytical results for fiie kinds of potassium hydrogenphthalate reagents agreed satlsfactonly with those obtained by direct NBB-ICP-MS and/or ETV-ICP-MS

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