Determination of 2, 4-toluenediamine in urine by gas chromatography / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 939-940, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-286576
ABSTRACT
<p><b>OBJECTIVE</b>To establish a method for determining the content of 2,4-toluenediamine, a urinary metabolite of toluene diisocyanate, by gas chromatography.</p><p><b>METHODS</b>Urine samples were collected, and acidification, extraction, derivatization, separation with a capillary column, and detection with an electron capture detector were performed. The target compound was qualified by retention time and quantified by peak area.</p><p><b>RESULTS</b>The concentration of 2, 4-toluenediamine showed a linear relationship with peak area within 0.0∼40 ng/ml, with a correlation coefficient 0.9995; the limit of detection was 0.44 ng/ml, the lower limit of quantification was 1.47 ng/ml, the relative standard deviation was 1.85%∼4.05%; the recovery rate was 97.98%∼99.28%.</p><p><b>CONCLUSION</b>The method has the advantages of high sensitivity and high accuracy and can be used for determination of 2, 4-toluenediamine in urine.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phenylenediamines
/
Urine
/
Chromatography, Gas
/
Occupational Exposure
/
Methods
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Year:
2013
Type:
Article
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