Chemical Research in Chinese Universities ›› 2019, Vol. 35 ›› Issue (2): 209-215.doi: 10.1007/s40242-019-8216-4

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Separation/Extraction/Detection of Chloramphenicol Using Binary Small Molecule Alcohol-Salt Aqueous Two-phase System Coupled with High-performance Liquid Chromatography

GUO Donggang1,2, NI Liang1, WANG Liang2, SHAO Li2   

  1. 1. School of the Environment and Safety Engineering, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China;
    2. Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Ministry of Education, Changchun 130103, P. R. China
  • Received:2018-07-02 Revised:2018-08-25 Online:2019-04-01 Published:2019-04-30
  • Contact: NI Liang E-mail:niliang@ujs.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21407058).

Abstract: A green and sensitive sample separation and purification method coupled with high-performance liquid chromatography(HPLC) was developed for the analysis of chloramphenicol(CAP). One element small molecule alcohol-salt aqueous two-phase system(ATPS) can't effectively adjust the polarity of the system, but binary small molecule alcohol-salt ATPS can adjust the polarity and improve the extraction efficiency of antibiotics. A binary aqueous two-phase system based on 1-propanol+2-propanol and NaH2PO4 system was formed and applied to the separation and purification of trace CAP in real samples. The influence factors on partition behaviors of CAP were discussed, including the types and mass of salts, the volume ratio of alcohol, the pH, temperature and the standing time. The optimal condition was found at pH=5.0, 2.5 g of NaH2PO4, 3.0 mL of 1-propanol and 2-propanol(volume ratio 1:1) and 30℃ by using response surface methodology. Under this optimal condition, the extraction efficiency of CAP reached 98.91%, and partition coefficient of CAP was 17.31.

Key words: Binary small molecule alcohol aqueous two-phase system, Partition behavior, Chloramphenicol, Extraction efficiency