摘要：
建立了环境水中萘磺酸染料中间体α-萘磺酸钠、β-萘磺酸钠同分异构体的离子抑制色谱(ISC)分析方法。以Eclipse XDB-C18 为色谱分析柱，优化出的色谱分离条件：流动相为V(水，pH=4)∶V(甲醇)=90∶10；流速0.7mL/min；柱温40 ℃；检测波长275 nm。α-萘磺酸钠、β-萘磺酸钠的加样萃取回收率为85%和90%，样品的检出限为2.0 μg/L。检测方法简便，快速，经济，数据重现性好。
关键词:
离子抑制色谱,
α-萘磺酸钠,
β-萘磺酸钠,
染料中间体
Abstract:
The analytical method for determining α-sodium naphthalene sulfonate and β-sodium naphthalene sulfonate isomeride in environmental water by ion suppression chromatography (ISC) has been established. The analytical column of ISC is Eclipse XDB-C18. The optimized chromatographic separation conditions are as follows:the mobile phase of V(water，pH=4) ∶V(methanol)=90 ∶10 at a flow rate of 0.7 mL/min，temperature of column at 40 ℃ and detected wavelength at 275 nm. The sample extraction recovery rates of α-sodium naphthalene sulfonate and β-sodium naphthalene sulfonate are 85% and 90%，respectively. The detection limit of samples is about 2.0 μg/L.The method is simple，rapid，economic and the reproduction quality of data is good.
Key words:
ion suppression chromatography,
α-sodium naphthalene sulfonate,
β-sodium naphthalene sulfonate,
dye intermediates
中图分类号:
冯丽娟, 郭英娜, 张敏, 冯力蕴. 离子抑制色谱法检测环境水中萘磺酸盐同分异构体[J]. 工业水处理, 2011, 31(10): 79-81.
Feng Lijuan, Guo Yingna, Zhang Min, Feng Liyun. Determination of isomeric naphthalene sulfonate in environmental water by ion suppression chromatography[J]. INDUSTRIAL WATER TREATMENT, 2011, 31(10): 79-81.