A Candidate Reference Method for the Determination of Magnesium in Serum
A Candidate Reference Method for the Determination of Magnesium in Serum
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DOI：
10.1515/cclm.1989.27.1.33
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
W. Külpmann;D. Ruschke;J. Büttner;K. Paschen
中科院分区：
文献类型：
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作者：
W. Külpmann;D. Ruschke;J. Büttner;K. Paschen
委托采用火焰原子吸收光谱法测定血清中镁（分析范围0.5 - 2.0 mmol/l）的候选参考方法。每个值的4次重复测定的相对标准偏差范围为0.18 - 1.07%，平均值的标准误差范围为0.63 - 8.34 mumol/l。在3项不同实验中，对3种不同标准品溶液（通过称量分析物制备）进行分析，候选参比方法记录的值分别偏离-0.15、0.44和0.24%。参考方法值与确定值无显著差异。由于该方法似乎与用于测定钠、钾或钙的可比参考方法一样可靠，因此现在应进行可转移性试验。
A candidate reference method for the determination of magnesium in serum (analytical range 0.5 to 2.0 mmol/l) by flame atomic absorption spectrometry was commissioned. The relative standard deviation of the 4 replicates of each value ranged from 0.18 to 1.07%, and the standard error of the mean ranged from 0.63 to 8.34 mumol/l. In the analysis of 3 different standard solutions (prepared by weighing the analyte), which was performed in each of three different experiments the values recorded by the candidate reference method deviated by -0.15, 0.44 and 0.24%, respectively. The reference method value did not differ significantly from the definitive value. As the method seems to be as reliable as comparable reference methods for the determination of sodium, potassium or calcium, tests of transferability should now be undertaken.