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Citation: Zeng Huihui, Wang Kemin, Yu Ruqin, He Zhi. Pictic Optical Sensor for Pharmaceutical Analysis[J]. Chinese Journal of Applied Chemistry, ;1994, 11(2): 48-52. shu

Pictic Optical Sensor for Pharmaceutical Analysis

Zeng Huihui ¹ ,
Wang Kemin ¹ ,
Yu Ruqin ¹ ,
He Zhi ²

1.
1. Department fo Chemistry and Chemical Engineering, Hunan University, Changsha 410082;
2.
2. People's Hospital of Zhongshan City, Zhongshan

Received Date: 12 July 1993
Available Online: 15 November 1993
Fund Project:

A new optical sensor for the determination of picric acid based on reversible fluorescence quenching of anthracene dissolved in plasticized poly (vinyl chloride) membrane has been developed.The optimum membrane of the sensor consists of 6~8mg anthracene,50mg PVC,100mg bis (2-ethylhexyl) phalate.With the optimum membrane described,picric acid in sample solutions from 3.04×10^-6 mol/L to 6.16×10^-3 mol/L can be determined.Besides a high reproducibility of the optical signals,the very short response times of less than 40s are realized.The sensor has a good selectivity,common hydrophobic anions do not interfere the determination.The sensor has been applied to indirect determination of some drugs,such as quinine,cinchonine,with satisfactory results.
- picric acid,
- optical sensor,
- anthracene,
- pharmaceutical analysis
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