(LA,Q)-ICPMS trace-element analyses of Durango and McClure Mountain apatite and implications for making natural LA-ICPMS mineral standards
(LA,Q)-ICPMS trace-element analyses of Durango and McClure Mountain apatite and implications for making natural LA-ICPMS mineral standards
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DOI：
10.1016/j.chemgeo.2016.03.028
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发表时间：
2016-10-01
期刊：
影响因子：
3.9
通讯作者：
McKenna, Cora A.
中科院分区：
文献类型：
--
作者：
Chew, David M.;Babechuk, Michael G.;McKenna, Cora A.
磷灰石是地壳和上地幔中最丰富的磷酸盐矿物，能够将多种微量元素吸收到其晶体结构中。许多痕量元素替代低于电子微探针分析的检测限，但可以通过激光烧蚀电感耦合等离子体质谱 (LA-ICPMS) 进行测定。 LA-ICPMS 元素丰度测定通常采用样品标准括号法，使用标准玻璃或适当的基质匹配参考材料。在本研究中，我们对杜兰戈和麦克卢尔山磷灰石粉碎的 150-300 μm 等分试样进行了激光烧蚀（> 3000 次分析）和低空白溶液 Q（四极）-ICPMS 痕量元素分析，以评估使用 NIST 612 标准玻璃作为主要 LA-ICPMS 痕量元素标准时磷灰石元素丰度测定的准确性。准确度（相对于解数据）和精密度
Apatite, the most abundant phosphate mineral in the Earth's crust and uppermost mantle, is able to accept a wide variety of trace elements into its crystal structure. Many of these trace element substitutions are below the detection limit of Electron Microprobe Analysis, but can be determined by laser-ablation inductively coupled plasma mass spectrometry (LA-ICPMS). LA-ICPMS elemental abundance determinations typically employ sample-standard bracketing using either standard glasses or an appropriate matrix-matched reference material. In this study we have undertaken laser ablation (>3000 analyses) and low-blank solution Q(quadrupole)-ICPMS trace-element analyses on crushed 150-300 mu m aliquots of Durango and McClure Mountain apatite to assess the accuracy of apatite elemental abundance determinations when using NIST 612 standard glass as the primary LA-ICPMS trace element standard. An accuracy (relative to the solution data) and precision of