低压离子色谱分离-化学发光检测水中痕量亚硝酸根  

Determination of Trace Nitrite in Water by Low-Pressure Ion Chromatography with Chemiluminescence Detection

作　　者：张磊[1] 周光明[1] 沈祥[1] 游水英[1] 高智席[1] 黎司[1] 

机构地区：[1]西南大学化学化工学院,重庆400715

出　　处：《西南大学学报（自然科学版）》2007年第5期22-25,共4页Journal of Southwest University(Natural Science Edition)

基　　金：重庆自然科学基金资助项目(CSTC2004BB7087)

摘　　要：低压离子色谱分离化学发光方法检测NO2-,利用Na2CO3作为色谱柱的洗脱液,研究了分离条件、发光条件及二者的匹配方式等因素对分离检测的影响,测定NO2-线性范围为0·8～10·0mg/L,检测限为0·2mg/L;对4·0mg/LNO2-连续11次测定的相对标准偏差为3·1%.Separation and determination of nitrite in water samples were made by low pressure-ion chromatography used in combination with chemiluminescence. With Na2CO3 as the eluent in the chromatographic column, the effects of separation and detection conditions and thweir combinations on separation and detectlon were investigated. The linear range for the determination of nitrite was 0.8～10.0 mg/L, the detecwas 0.24 mg/L, and the relative standard derivation for 4.0 mg/L NO^-3 was 3.1% （n=11）.

关 键 词：亚硝酸盐 低压离子色谱 化学发光 

分 类 号：O657.7[理学—分析化学]