广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
12期
131-132
,共2页
十二烷基苯磺酸钠%硫酸耐尔蓝%褪色光度法
十二烷基苯磺痠鈉%硫痠耐爾藍%褪色光度法
십이완기분광산납%류산내이람%퇴색광도법
SDBS%nile blue sulphate%fading spectrophotometric
基于硫酸耐尔蓝与十二烷基苯磺酸钠相互作用而导致溶液吸收光谱的变化,用褪色光度法对该体系进行了研究,在pH=4.80缓冲溶液中,硫酸耐尔蓝在595 nm处有一强的特征吸收峰,当在其溶液中加入十二烷基苯磺酸钠后,溶液发生褪色反应,吸光度差值与十二烷基苯磺酸钠浓度成正比。最佳条件下,十二烷基苯磺酸钠浓度在0.5～5 mg/L范围内符合比尔定律,检出限（3σ）为0.16 mg/L。方法用于环境水中十二烷基苯磺酸钠的测定,回收率在98.8%～102.2%。
基于硫痠耐爾藍與十二烷基苯磺痠鈉相互作用而導緻溶液吸收光譜的變化,用褪色光度法對該體繫進行瞭研究,在pH=4.80緩遲溶液中,硫痠耐爾藍在595 nm處有一彊的特徵吸收峰,噹在其溶液中加入十二烷基苯磺痠鈉後,溶液髮生褪色反應,吸光度差值與十二烷基苯磺痠鈉濃度成正比。最佳條件下,十二烷基苯磺痠鈉濃度在0.5～5 mg/L範圍內符閤比爾定律,檢齣限（3σ）為0.16 mg/L。方法用于環境水中十二烷基苯磺痠鈉的測定,迴收率在98.8%～102.2%。
기우류산내이람여십이완기분광산납상호작용이도치용액흡수광보적변화,용퇴색광도법대해체계진행료연구,재pH=4.80완충용액중,류산내이람재595 nm처유일강적특정흡수봉,당재기용액중가입십이완기분광산납후,용액발생퇴색반응,흡광도차치여십이완기분광산납농도성정비。최가조건하,십이완기분광산납농도재0.5～5 mg/L범위내부합비이정률,검출한（3σ）위0.16 mg/L。방법용우배경수중십이완기분광산납적측정,회수솔재98.8%～102.2%。
The interaction of sodium dodecylbenzene sulfonate（SDBS） and nile blue sulphate was studied by fading spectrophotometric method.In pH=4.80 buffer solution,nile blue sulphate had a strong absorbance at 595 nm and the addition of SDBS into nile blue sulphate solution resulted in the decrease in the absorbance value.The decrease in absorbance value was linear with the concention of SDBS.Under the optimun conditions,Beer＇s law was obeyed in the range of 0.5~5 mg/L,with the detection limit of 0.16 mg/L.The mothed was applied to determine the environmental waters with satisfactory results.The recoveries were 98.8%~102.2%.
