Low-blank chemistry for Zn stable isotope ratio determination using extraction chromatographic resin and double spike-multiple collector-ICP-MS

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    A new low-blank Zn separation method employing an extraction chromatographic resin using Aliquat 336 (commercially available as TEVA resin) has been developed for Zn isotope composition determination by double spike-multiple collector-ICP-MS. The silicate sample solution containing 0.1 μg Zn in 0.5 mol L-1 HBr containing 0.15% ascorbic acid (AA) is passed through a 1 mL column with 0.33 mL TEVA resin. While Zn is absorbed, major elements are eluted with 0.5 mol L-1 HBr with AA. Afterwards, Zn was recovered with 2 mol L-1 HNO3. Recovery yield using silicate samples was 96.7 ± 6.8% (n = 10) and total blank was 0.05 ng (n = 6). The blank level is from 1/300 to 1/20 of previous studies, meaning 0.1 μg of Zn is sufficient for analysis. The 67Zn-70Zn double spike method was used in MC-ICP-MS. δ66Zn of three USGS standard silicate reference materials (BHVO-1, AGV-1 and PCC-1) and seven GSJ silicate reference materials (JB-1, -2, -3, JA-1, -2, -3 and JP-1) were determined. Reproducibility of δ66Zn of the total silicates was 0.19‰ (2SD). δ66Zn of three carbonaceous chondrites (Orgueil, Murchison and Allende) were also determined and compared with those of references.

    Original languageEnglish
    Pages (from-to)127-133
    Number of pages7
    JournalJournal of analytical atomic spectrometry
    Volume28
    Issue number1
    DOIs
    Publication statusPublished - Jan 2013

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Spectroscopy

    Fingerprint

    Dive into the research topics of 'Low-blank chemistry for Zn stable isotope ratio determination using extraction chromatographic resin and double spike-multiple collector-ICP-MS'. Together they form a unique fingerprint.

    Cite this