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Determination of trace elements in human serum by inductively coupled plasma atomic emission spectrometry with flow injection |
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| Authors: | H B Lim M S Han K J Lee |
| Institution: | a Research Institute for Basic Sciences and Department of Chemistry, Dankook University, Young san-ku, Hannam-dong, Seoul 140–714, South Korea b Analytical Chemistry Division, Korea Research Institute of Standards and Science, Yousung-ku, Taejon 305–340, South Korea c College of Pharmarcy, Ewha Woman's University, Seodaemun-ku, Daehyun-dong, Seoul 120–750, South Korea |
| Abstract: | An analytical method for the simultaneous determination of some trace elements (Au, Fe, Mg, Li, Sr, Zn) in human serum by inductively coupled plasma atomic emission spectrometry (ICP-AES) with flow injection is described. Physical interference caused by the change of sample viscosity is discussed. When 100 μl of serum was injected, the relevant recoveries of > 99% for Li, > 98% for Cu and Mg, > 95% for Fe were obtained for an NIST SRM with R.S.D. > 1.3% using optimized flow injection parameters. The prepared lyophilized control serum for routine analysis in clinical laboratories was analyzed and verified for the validity of the technique employed in this experiment using NIST SRM 909 as a primary reference material. |
| Keywords: | Serum Inductively coupled plasma spectrometry Atomic emission spectrometry Flow injection Trace elements |
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