Study and Application on Separation and Enrichment of Calcium-teracycline Complez by Aqueous Two-phase Gas Floatation Spectrometry
A novel and green method for separating and enriching trace TC in environment water by Aqueous Two-Phase Gas Floatation (ATGF) Spectrophotometry has been proposed. The method estimated by HPLC was good, which has many excellences such as simple equipment, speedy detection, high sensitiveness, easy separation from organic solvent and not leaving any infectant. In this paper, the hydrophobic complex composed of Ca(II) and TC was floated into organic phase under the optimal conditions: pH=8, the floatation equipment is home-made, tetrahytrofuran as organic solvent, sodium chloride as separating phase reagent. The data were obtained by spectrophotometry after floatation. The linear regression equation is A=2.032×105C–0.0393, linear ranges is from 3.4×10-7 to 8.3×10-5 mol L-1, respectively, with the correlation coefficient (r) better than 0.9999, The average relative recoveries is 99.8% ,The limit of detection is 2.43×10-7 mol L-1 ,This method was applied to analyse the trace TC in the water, the result is good.
aqueous two-phase gas floatation spectrophotometry HPLC TC calcium (Ⅱ)
CHENG Yonghua HOU Yanmin
School of Chemistry and Chemical Engineering,Pingdingshan University,Pingdingshan 467000,Henan,China
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
706-709
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）