Liver plays a major role in metabolism and acts as a source of energy for the body by storing glycogen. With the growing interest and investigation in the biological effects in recent years, it is important and necessary to develop accurate and comparable analytical methods for elements in bio-samples. It has, however, been 10 years since the tissue sample (bovine liver) of CCQM-K49 key comparison. The purpose of CCQM-K145 is to ensure the comparable and traceable measurement results for essential and toxic elements such as P, S, Zn, Mn, Ni, Mo, Sr, Cr, Co, Pb, As and Hg in bovine liver among NMIs and other designated measurement bodies worldwide. The comparison was agreed by IAWG as 6th IAWG Benchmarking Exercise with Zn and Ni as exemplary elements at the meeting in Korea in the early October 2016. The results of CCQM-K145 are expected to cover the measurement capability and support CMCs claiming for inorganic elements in the similar biological tissue materials and food sample...

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CCQM-K145的最终报告：牛肝中的有毒和必需元素

肝脏在新陈代谢中起主要作用，并通过储存糖原作为人体的能量来源。近年来，随着人们对生物学效应的兴趣不断增长和研究的深入，开发准确，可比的生物样品中元素的分析方法非常重要和必要。但是，距CCQM-K49关键比较的组织样本（牛肝）已有10年了。CCQM-K145的目的是确保NMI中牛肝中必需和有毒元素（例如P，S，Zn，Mn，Ni，Mo，Sr，Cr，Co，Pb，As和Hg）具有可比且可追溯的测量结果以及全球其他指定的测量机构。IAWG在2016年10月上旬在韩国举行的会议上同意进行比较，这是第六次IAWG基准测试，其中锌和镍为示例性元素。