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Study on Spectrophotometric Determining Trace Tetracycline by Phase-Separation Floatation
Abstract:
A novel and green method for separating and enriching trace tetracycline(TC) in environment water by phase-separation Floatation has been proposed,the principium was discussed. In this paper,the hydrophobic complex composed of Al(III) and TC was floated into organic phase under the optimal conditions: PH=6.2, the floatation equipment is home-made, The n-propyl alcohol is organic solvent ,sodium chloride is separating phase reagent.The data were obtained by spectrophotometry after floatation; The linear regression equation was A= 2.5759×105C (mol•L-1)-0.2716, The linear ranges were from 5×10-7 to 7.8×10-5 mol·L-1, respectively, with the correlation coefficient (r) better than r=0.9998, The average relative recoveries were 100.1% to 102.3% ,The limit of detection was 3.86×10-8mol·L-1 , It can be applied to analyse the trace TC in water sample ,the results were better.
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1652-1655
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January 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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