摘要
The absolute 32S/34S ratios of IAEA-S-1 reference material and V-CDT standard are determined. For cross-checking, two sets of synthetic isotope mixtures are prepared from high purity 32S and 34S-enriched materials in different forms: the first set is prepared from BaSO4 whereas the second is prepared from Ag2S. The sulfur isotope analyses are done by using SF6 method with a MAT-251 EM mass spectrometer. The resulting 32S/34S ratio of IAEA-S-1 reference material is 22.656 4± 0.006 0, and that of V-CDT is 22.649 6± 0.006 0.
The absolute <sup>32</sup>S/<sup>34</sup>S ratios of IAEA-S-1 reference material and V-CDT standard are determined. For cross-checking, two sets of synthetic isotope mixtures are prepared from high purity <sup>32</sup>S and <sup>34</sup>S-enriched materials in different forms: the first set is prepared from BaSO<sub>4</sub> whereas the second is prepared from Ag<sub>2</sub>S. The sulfur isotope analyses are done by using SF<sub>6</sub> method with a MAT-251 EM mass spectrometer. The resulting <sup>32</sup>S/<sup>34</sup>S ratio of IAEAS-1 reference material is 22.656 4±0. 006 0, and that of V-CDT is 22. 649 6±0. 006 0.
基金
Project supported by the National Natural Science Foundation of China (Grant No. 86020341).
