Direct high-precision measurements of the 87Sr/86Sr isotope ratio in natural water, carbonates and related materials by multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS)

Autor:	Ittai Gavrieli, Lina-Ben Dor, Sara Ehrlich, Ludwik Halicz
Rok vydání:	2001
Předmět:	Chemical separation Isotope Chemistry Mc icp ms Natural water Analytical chemistry Mass discrimination Direct analysis Inductively coupled plasma mass spectrometry Spectroscopy Isotopes of strontium Analytical Chemistry
Zdroj:	Journal of Analytical Atomic Spectrometry. 16:1389-1392
ISSN:	1364-5544 0267-9477
Popis:	The present work presents a precise and accurate method for the determination of strontium isotope ratios (87Sr/86Sr) by multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS). Mass discrimination and instrument drift are corrected by the use of the natural constant 86Sr/88Sr ratio as an internal standard. The internal standard also corrects for matrix effects, allowing the direct analysis of natural water, carbonates and related materials without chemical separation. The precision (2σ) of the 87Sr/86Sr ratio is 0.002% (20 ppm), even in samples with total dissolved solid (TDS) levels of up to 500 mg L−1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6823e3ddf5815355c38153e107c45b1 https://doi.org/10.1039/b107996b Zobrazit plný text záznamu