工作场所空气中二氧化氯检测方法研究  

Study on the method of detecting chlorine dioxide in workplace

作　　者：俞凌[1] 

机构地区：[1]南京财经大学食品与工程学院,江苏南京210009

出　　处：《粮油食品科技》2010年第6期42-43,共2页Science and Technology of Cereals,Oils and Foods

摘　　要：建立一种简便快速测定工作场所空气中二氧化氯的方法。采集样品后加入热饱和的24,-二硝基苯肼水溶液和氢氧化钠水溶液显色,用分光光度法在530 nm处测定其吸光度从而得出工作场所空气中二氧化氯的含量。方法相关性好(r=0.997)、线性范围(0～10μg/10 mL)、精密度高(RSD%<0.69)、样品回收率为91%～101%之间。方法最低检出浓度为0.107 mg/m3(采样体积1.5 L)。方法操作简便快速、干扰少,能普及到基层。A quick and easy method to determine chlorine dioxide in workplace is established.After sample collection,24,-dinitrophenylhydrazine and sodium hydroxide are added.The absorbance in 530 nm is detected by UV-Vis spectrometer.Therefore the content of chlorine dioxide in workplace is detected.Correlative coefficient is 0.997,line range 0 ～ 10μg/10 mL,RSD less than 0.69%,the recovery rate 91% ～ 101%.The lowest detectable concentration is 0.107 mg/ m3（sample volume1.5 L）.The method is simple,quick and less interference which can be spread widely.

关 键 词：分光光度计 二氧化氯 甘氨酸 

分 类 号：TQ455.42[化学工程—农药化工]