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^-.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2008年第8期1059-1062,共4页
Chemical Research and Application
关键词
锰酞菁
磺酸基锰钛菁
荧光特性
痕量NO2^-离子
manganese phthalocyanine （MnPc）
manganese sulfonate phthalocyanine （MnSPc）
Fluorescence
trace analysis of NO2 ion
