Division of Geosciences, Luleå University of Technology, S-971 87 Luleå, Sweden; ALS Laboratory Group, ALS Scandinavia AB, Aurorum 10, S-977 75 Luleå, Sweden.
ALS Laboratory Group, ALS Scandinavia AB, Aurorum 10, S-977 75 Luleå, Sweden.
Sci Total Environ. 2018 May 1;622-623:203-213. doi: 10.1016/j.scitotenv.2017.11.288. Epub 2017 Dec 13.
The performance of double focusing, sector field mass spectrometry (ICP-SFMS) for determination of analytes, including technology critical elements (TCE), at ultra-trace levels in environmental and clinical matrices was critically evaluated. Different configurations of the ICP-SFMS introduction system as well as various sample preparations, pre-concentration and matrix separation methods were employed and compared. Factors affecting detection capabilities and accuracy of data produced (instrumental sensitivity, contamination risks, purity of reagents, spectral interferences, matrix effects, analyte recovery and losses) were discussed. Optimized matrix-specific methods were applied to a range of reference and control materials (riverine, brackish and seawaters; whole blood, serum and urine) as well as tap water and snow samples collected in the area of Luleå city, northern Sweden; brackish and seawater from the Laptev Sea; venous blood samples with a special emphasis on determination of Au, Ag, Ir, Os, Pd, Pt, Re, Rh, Ru, Sb and Te. Even though these low abundant elements are relatively under-documented, the results produced were compared with published data, where available.
双聚焦扇形场质谱法（ICP-SFMS）测定环境和临床基质中超痕量分析物（包括技术关键元素（TCE））的性能进行了严格评估。采用了 ICP-SFMS 引入系统的不同配置以及各种样品制备、预浓缩和基质分离方法，并进行了比较。讨论了影响检测能力和数据准确性的因素（仪器灵敏度、污染风险、试剂纯度、光谱干扰、基质效应、分析物回收率和损失）。优化的基质特异性方法应用于一系列参考和对照材料（河流、咸水和海水；全血、血清和尿液）以及在瑞典北部吕勒奥市收集的自来水和雪样；拉普捷夫海的咸水和海水；静脉血样，特别强调测定 Au、Ag、Ir、Os、Pd、Pt、Re、Rh、Ru、Sb 和 Te。尽管这些低丰度元素的文献记载相对较少，但所得到的结果与现有数据进行了比较。
