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Original Articles

Simultaneous determination of chlortetracycline, ampicillin and sarafloxacin in milk using capillary electrophoresis with electrochemiluminescence detection

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Pages 24-31 | Received 20 Jun 2016, Accepted 09 Oct 2016, Published online: 17 Nov 2016
 

ABSTRACT

A fast, inexpensive and sensitive approach for the simultaneous determination of chlortetracycline, ampicilline and sarafloxacin in milk was developed using capillary electrophoresis coupled with an electrochemiluminescence detector. Under the optimal detection conditions, the linear ranges for chlortetracyline, ampicilline and sarafloxacin were 0.030–5.0, 0.050–5.0 and 0.0040–2.0 μg ml–1, respectively. The correlation coefficients of chlortetracycline, ampicilline and sarafloxacin were determined as 0.9997, 0.9952 and 0.9978, respectively. Detection limits (S/N = 3) of chlortetracycline, ampicilline and sarafloxacin were found as 0.017, 0.018 and 0.0013 μg ml–1, respectively. This method was successfully applied for the determination of chlortetracycline, ampicilline and sarafloxacin in milk. The recoveries were between 95.3% and 100%. The relative standard deviations of the detection limit and recovery were less than 2.6% and 3.2%, respectively.

GRAPHICAL ABSTRACT

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by the National Natural Science Foundation of China [grant number 21365006] and the Guangxi Science Foundation of China [grant numbers 2014GXNSFDA118004 and 1598025-4].

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