论文部分内容阅读
本文基于二氧化硫对固定于增塑的聚氯乙烯膜上的芳香稠环化合物蒽的荧光熄灭,研制了二氧化硫选择性光化学敏感膜。经过组成优化的敏感膜测定二氧化硫的浓度范围为6.59×10~(-3)～5.23×10~(-1)mol/L,校正曲线与理论推导的模拟曲线相吻合,且荧光信号具有较高的重现性,信号响应时间为5～30s。
Based on the fluorescence quenching of anthracene, an aromatic condensed ring compound immobilized on plasticized polyvinyl chloride (PVC) film, a selective photochemical sensitive membrane of sulfur dioxide was developed. The concentration of sulfur dioxide measured by the optimized sensitive membrane was in the range of 6.59 × 10 -3 ~ 5.23 × 10 -1 mol / L. The calibration curve was in good agreement with the theoretical simulated curve and the fluorescence signal had high Reproducibility, the signal response time is 5 ~ 30s.