光谱学与光谱分析 |
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Determination of Trace Cs, Th and U in Ten Kinds of Human Autopsy Tissues by ICP-MS |
WANG Jing-yu1, ZHU Hong-da2, OUYANG Li1, LIU Ya-qiong1, WANG Xiao-yan1, HUANG Zhuo1, WANG Nai-fen1, LIU Hu-sheng1 |
1. College of Public Health, Peking University, Beijing 100083,China 2. Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin 300192, China |
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Abstract This paper studied the trace elements Cs, Th and U in ten kinds of human autopsy tissues by ICP-MS. The instrumental operating conditions were optimized for the measurement of Cs, Th and U. Rhodium (Rh) was used as an internal standard element to compensate matrix effect. Detection limits for Th, U and Cs were 5.7-17.8 pg·mL-1. The recoveries for spiking liver samples were 96%-107%, and their RSDs were 4.8%-8.9%. Reference materials of NIST SRM 8414 Bovine and NIST SRM 1 486 Bone Meal were analyzed by the described method, and the analytical results agreed well with the reference values. Human autopsy tissues samples were digested by mixed acid (HNO3+HClO4). The determination of Cs, Th and U in lung, liver, bone, heart, stomach, spleen, muscle, kidney, thyroid gland and intestinum tenue was performed by ICP-MS without separation and enrichment procedures. The obtained results indicated that this method is rapid, sensitive and accurate; the distribution of the three elements is different from one to another human organ sample; the main organ targets for Th and U are lungs and kidneys; and a coordinated variation of Cs, Th and U concentration in lungs was found in the samples collected from Hebei and Sichuan provinces.
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Received: 2003-06-18
Accepted: 2003-10-25
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Corresponding Authors:
WANG Jing-yu
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Cite this article: |
WANG Jing-yu,ZHU Hong-da,OUYANG Li, et al. Determination of Trace Cs, Th and U in Ten Kinds of Human Autopsy Tissues by ICP-MS [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(09): 1117-1120.
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URL: |
http://www.gpxygpfx.com/EN/Y2004/V24/I09/1117 |
[1] Benes et al. Biological Trace Element Research, 2000, 75: 195. [2] Igarashi Y, Kawamura H, Shiraishi K, Takaku Y J. Anal. At. Spectrom., 1989, 4: 571.
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