淀粉存在下分光光度法测定亚氨基二乙酸中微量氯  

Spectrophotometric Determination of Trace Chloride from Imido-acetic Acid in the Presence of Starch

作　　者：付雪琴[1] 

机构地区：[1]四川省天然气化工研究院,成都610212

出　　处：《云南化工》2001年第2期27-29,共3页Yunnan Chemical Technology

摘　　要：在硝酸介质中 ,微量氯离子与银离子反应 ,生成氯化银悬浮体 ,在淀粉 乙醇体系中可用光度法测定氯离子含量。测定波长为 42 0nm ,摩尔吸光系数ε=1.2 4× 10 3,氯离子含量在 0～ 160 μg/ 10mL范围内服从比尔定律。用于亚氨基二乙酸中微量氯的测定 。In the medium of nitric acid,trace chlorine react with Ag(Ⅰ) forming suspension of silver chloride,which could be used in the spectrophoto metric determination of trace chloride from imido acetic acid in the presence of starch,with λ max 420nm and ε=1.24×10 3.Beer's law was obeyed in the range of 0～160 μg/10mL of chloride.

关 键 词：氯 氯化银 分光光度法 淀粉-乙醇 亚氨基二乙酸 

分 类 号：O657.32[理学—分析化学] O613.42[理学—化学]