Nowak Sascha, Künnemeyer Jens, Terborg Lydia, Trümpler Stefan, Günsel Andreas, Wiesmüller Gerhard A, Karst Uwe, Buscher Wolfgang
Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse 30, 48149, Münster, Germany,
Anal Bioanal Chem. 2015 Jan;407(3):1023-6. doi: 10.1007/s00216-014-8161-5. Epub 2014 Sep 21.
Low gas flow ICP-OES with a total argon consumption below 0.7 L/min is introduced for the analysis of trace elements in blood samples to investigate the influence of samples containing an organic solvent in a demanding matrix on the performance of this plasma for the first time. Therefore, gadolinium was determined in human plasma samples and mercury in red blood cells, human plasma, and precipitated plasma protein fraction. Limits of detection (LOD) were determined to be in the low microgram per liter range for the analytes and the accuracy of the method was assessed by comparison with a conventional Fassel-type torch-based ICP-OES. It was proven that the low gas flow ICP-OES leads to comparable results with the instrument based on the Fassel-type torch.
引入了总氩气消耗量低于0.7升/分钟的低气体流量电感耦合等离子体质谱仪（ICP - OES），首次用于分析血样中的微量元素，以研究在高要求基质中含有有机溶剂的样品对该等离子体性能的影响。因此，测定了人血浆样品中的钆以及红细胞、人血浆和沉淀血浆蛋白组分中的汞。测定的分析物检测限在每升低微克范围内，并且通过与传统的基于法塞尔型炬管的ICP - OES进行比较来评估该方法的准确性。结果证明，低气体流量ICP - OES与基于法塞尔型炬管的仪器相比，能得出相当的结果。
