%0 Journal Article
%T Reversed flow injection spectrophotometric determination of low residuals of chlorine dioxide in water using chlorophenol red
%A WANG Gai-zhen
%A CHEN Hui
%A YUAN Li
%A LI Guo-dong
%A <br>WANG Gai-zhen
%A CHEN Hui
%A YUAN Li
%A LI Guo-dong
%J 环境科学学报(英文版)
%D 2002
%I 
%X A novel, simple, rapid, sensitive and highly selective flow injection procedure for the spectrophotometric determination of chlorine dioxide in the presence of other chlorine species, viz, free chlorine, chlorite, chlorate and hypochlorite, is developed. The method is based on the discoloration reaction between chlorine dioxide and chlorophenol red and can overcome the shortcomings existed in direct spectrophotometric determination for chlorine dioxide owing to the serious interference of free and combined chlorine. The procedure gave a linear calibration graph over the range 0-0.71 mg/L of chlorine dioxide. With a detection limit of 0.024 mg/L and a sample throughput of 60 samples/h.
%K chlorine dioxide
%K chlorophenol red
%K reversed flow
%K injection
%K spectrophotometry<br>二氧化氮
%K 氯酚红
%K 反向流体注射
%K 光谱分析
%K 水质分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=25BBA2CBB805A507CE3A228E0EA2E157&yid=C3ACC247184A22C1&vid=F3583C8E78166B9E&iid=38B194292C032A66&sid=F27A401E323B6FAD&eid=CB3428B1EFB1C133&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=1&reference_num=11