Determination of stannum in urine by graphite furnace atomic absorption spectrometry / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 924-926, 2015.
Article
in Chinese
| WPRIM
| ID: wpr-312084
ABSTRACT
<p><b>OBJECTIVE</b>To establish the method of graphite furnace atomic absorption spectrometry for the measurement of stannum in urine with calcium nitrate as the matrix modifier.</p><p><b>METHODS</b>Graphite tube was pretreated with calcium nitrate as the matrix modifier, the urine sample was diluted with 1% nitric acid and then direct injection was performed for these samples, and graphite furnace atomic absorption spectrometry was applied for measurement.</p><p><b>RESULTS</b>The concentration of stannum in urine showed a good linear relationship within the range of 8.0~40.0 μg/L, with a correlation coefficient of 0.9981. The minimum detectable concentration was 0.72 μg/L, the degree of precision was 1.54%~6.69%, and the recovery rate was 99.23%~107.63%.</p><p><b>CONCLUSION</b>This method can determine the content of stannum in urine accurately and rapidly, with a high sensitivity and a low cost.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Spectrophotometry, Atomic
/
Tin
/
Urine
/
Graphite
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Year:
2015
Type:
Article
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