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Citation: WU Yun-Ling, LI Quan-Min. Study of Sensitization of Cationic Surfactant for Spectrophotometric Determination of Carbocisteine with Sodium 1,2-Naphthoquinone-4-sulfonate[J]. Chinese Journal of Applied Chemistry, ;2009, 26(6): 742-745. shu

Study of Sensitization of Cationic Surfactant for Spectrophotometric Determination of Carbocisteine with Sodium 1,2-Naphthoquinone-4-sulfonate

WU Yun-Ling ,
LI Quan-Min ^,

1.
College of Chemistry and Environmental Science, Henan Normal University, Henan Key Laboratory for Environmental Pollution Control, Xinxiang 453007

Corresponding author: LI Quan-Min,
Received Date: 17 May 2008
Available Online: 20 July 2008
Fund Project: 河南省教育厅自然科学基金资助项目(2008B150011) (2008B150011)

A new method was proposed for the determination of carbocisteine(S-CMC) with 1,2-naphthoquinone-4-sulfonate(NQS) by spectrophotometry.It was indicated that the molar ratio of the russety product formed by S-CMC,Zeph and NQS was 1:1:1 at pH=11.00.The linear regression equation was A=0.223 02+0.011 98c(mg/L),with a correlation coefficient of 0.999 2,and ε was 2.2×10³ L/(mol·cm) at 466 nm.Beer's law was well obeyed in a S-CMC concentration range of 0.72～28.67 mg/L.The limit of detection(3σ/κ) was 0.70 mg/L,and the RSD was 0.52%,and the average recovery rate was in a range of 98.7%～102.6%.The method was used for the determination of S-CMC in pharmaceutical samples with satisfactory results.
- carbocisteine,
- sodium naphthoquinonesulfonate,
- tetradecyl benzyl dimethyl ammonium chloride
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