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Corresponding Author

Zuo-peng LI(lizuopeng@126.com);
Feng FENG(feng-feng64@263.net)

Abstract

In this study, differential pulse stripping voltammetry was developed for the quantitative detection of levofloxacin hydrochloride indirectly. Levofloxacin hydrochloride contains organic amine, which can be precipitated upon interaction with Zn(SCN)42-. By means of differential pulse stripping voltammetry, the concentration of Zn2+ can be determined using an in-situ formed bismuth film electrode, which allows determining indirectly the amount of levofloxacine hydrochloride. The linearity equation, I = 1.1401c - 0.5309 with the correlative coefficient R = 0.9979, was presented in the experiment. The results showed that this approach is very sensitive, having a limitation of detection of 3.18 × 10-5 μg·mL-1 in a linearity range of 5.0 ~ 60 μg·mL-1.

Graphical Abstract

Keywords

bismuth film electrode, differential pulse stripping voltammetry, levofloxacine hydrochloride, zinc ion, ion-association compound

Publication Date

2019-12-28

Online Available Date

2018-12-26

Revised Date

2018-12-04

Received Date

2018-09-26

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