摘要
目的:建立稳定、灵敏、可靠的聚乙二醇辛基苯醚(OP)-酚试剂分光光度法测定公共场所空气中甲醛的方法。方法:采用OP为稳定剂,酚试剂分光光度法测定甲醛。结果:甲醛浓度在0.002 mg/m3～0.25 mg/m3范围内呈良好的线性关系(R2)=0.9997,回收率在93.0%～100.0%,相对标准偏差≤5%(n=6),最低检出限为0.02μg。结论:采用OP-酚试剂分光光度法测定公共场所空气中甲醛,具有快速、灵敏、准确的优点,可用于公共场所空气中甲醛的测定。
Objective： To develop a stable,sensitive and accurate method for determination of formaldehyde in the air in public places by phenol reagent spectrophotometry with polyethylene glycol Octylphenyl ether（OP）.Methods： In this method,OP was used as a stablizer,and the formaldehyde in the air of public places was determined by phenol reagent spectrophotometry.Results： Linearity in the range of 0.002 mg/m3~0.25 mg/m3 provided a determination coefficient（R2） of 0.9997 for formaldehyde.Recoveries were in the range of 93.0%~100.0%,precision values expressed as relative standard deviations（RSDs） were less than 5%（n=6）,and the limit of quantification（LOQs） was 0.02 μg.Conclusion： A rapid,sensitive and accurate method using OP-phenol reagent by spectrophotometry was established for the determination of formaldehyde,the method can be applied to the routine analyses of formaldehyde in the air of public places.
出处
《中国卫生检验杂志》
CAS
2011年第9期2169-2171,共3页
Chinese Journal of Health Laboratory Technology
