摘要
用乙酰丙酮分光光度法测定消毒剂中的甲醛。结果表明 ,甲醛的线性范围在 0～ 10μg/ml之间 ,检测下限为 0 .0 8μg/ml,不同浓度样品的精密度小于 3.9% ,加标回收率为 10 0 .2 %～ 10 8.2 % ,与容量法相比较差异无显著性。与其它分光光度法相比 ,该法具有操作简便、重现性好、灵敏度高、选择性好等优点 ,适合测定用容量法有干扰时消毒剂中的甲醛。
Formaldehyde in disinfectant was measured by acetylacetone spectrophotometry. The regression equation was linear when the formaldehyde concentration was smaller than 10μg/ml. The detection limit was 0 08μg/ml. The accuracy was less than 3 9% and the recovery varied between 100 2%—108 2% for formaldehyde disinfectant with different concentration, which was similar to titrimetry. It was demonstrated that the method was simple, reproducible, sensitive ,precise and accurate, making it important for assay of formaldehyde in disinfectant when disturbance caused titrimetry unavailable.
出处
《卫生研究》
CAS
CSCD
北大核心
2001年第1期18-19,共2页
Journal of Hygiene Research
