磺酸基锰钛菁基于荧光猝灭对痕量NO_2^-离子含量的测定  

Synthesis of manganese sulfonate phthalocyanine and its determination for trace amounts of NO_2^- based on fluorescence quenching method

作　　者：何洁[1] 杨莉[2] 李栀恩[3] 肖丹[1] 袁红雁[3] 

机构地区：[1]四川大学化学学院,四川成都610064 [2]四川文理学院化学系,四川达州635000 [3]四川大学化学工程学院,四川成都610065

出　　处：《化学研究与应用》2008年第8期1059-1062,共4页Chemical Research and Application

摘　　要：A simple and speedy method of synthesis manganese phthalocyanine(MnPc) via direct heating employing phthalic nitrile and manganese chloride was presented.After the sulfonation of MnPc,strong fluorescence was obtained in the manganese sulfonate phthalocyanine(MnSPc) solution.In the acidic medium,the fluorescence intensity of MnSPc solution was equenched due to addition of NO2-ion.It was found that the fluorescence intensity(ΔF) was linear well with-log in the range of 5×10-9mol/L^1×10-6 mol/L with r=-0.993 and the limit of detection for NO2-ion was 1.74×10-9 mol/L.The recovery ratio was 106% for the sample.This detection method is advantageous for its sensitivity,selectivity,simple operation,and short response time and can be used to determine trace amounts of NO2-.A simple and speedy method of synthesis manganese phthalocyanine （MnPc） via direct heating employing phthalic nitrile and manganese chloride was presented. After the sulfonation of MnPc, strong fluorescence was obtained in the manganese sulfonate phthalocyanine （MnSPc） solution. In the acidic medium, the fluorescence intensity of MnSPc solution was equenched due to addition of NO2^-ion. It was found that the fluorescence intensity （△F） was linear well with -log [ NO2^- ] in the range of 5 × 10^-9 mol/L - 1 × 10^6 mol/L with r = - 0. 993 and the limit of detection for NO2^- ion was 1.74 × 10^-9 mol/L The recovery ratio was 106% for the sample. This detection method is advantageous for its sensitivity, selectivity, simple operation, and short response time and can be used to determine trace amounts of NO2^-.

关 键 词：锰酞菁 磺酸基锰钛菁 荧光特性 痕量NO2^-离子 

分 类 号：O657[理学—分析化学]