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CE-C4D method development and validation for the assay of ciprofloxacin
KU Leuven Univ Leuven, Pharmaceut Anal, Dept Pharmaceut & Pharmacol Sci, O&N2,PB 923,Herestr 49, B-3000 Leuven, Belgium.
KU Leuven Univ Leuven, Pharmaceut Anal, Dept Pharmaceut & Pharmacol Sci, O&N2,PB 923,Herestr 49, B-3000 Leuven, Belgium.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Analytical Pharmaceutical Chemistry. Kantisto BV, Callenburglaan 22, NL-3742 MV Baarn, Netherlands.
KU Leuven Univ Leuven, Pharmaceut Anal, Dept Pharmaceut & Pharmacol Sci, O&N2,PB 923,Herestr 49, B-3000 Leuven, Belgium.
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2016 (English)In: Journal of Pharmaceutical and Biomedical Analysis, ISSN 0731-7085, E-ISSN 1873-264X, Vol. 129, 1-8 p.Article in journal (Refereed) Published
Abstract [en]

A capillary electrophoresis method with capacitively coupled contactless conductivity detection (CE-C(4)D) has been developed, optimized and validated for the determination of ciprofloxacin. Ciprofloxacin is a member of the fluoroquinolone antibiotics with a broad spectrum bactericidal activity and recommended for complicated respiratory infections, sexually transmitted diseases, tuberculosis, bacterial diarrhea etc. Method development was conducted with major focus on the quality by design (QbD) approach. During method development, multiple buffers were tried at different ionic strength. However, the optimized method finally involved a very simple background electrolyte, monosodium citrate at a concentration of 10mM without pH adjustment. The optimized CE-C(4)D method involved an uncoated fused silica capillary (59/39cm, 50μm i.d.) and hydrodynamic sample injection at a pressure of 0.5 p.s.i. for 5s. The actual separation was conducted for 10min at normal polarity with a voltage of 20kV corresponding to 5.9μA current. LiCl (1mg/mL) was used as an internal standard. The optimized method is robust and accurate (recovery >98%) which rendered the ciprofloxacin peak within five minutes with good linearity (R(2)>0.999) in the concentration range of 0.0126-0.8mg/mL. The repeatability is expressed by percentage relative standard deviation (%RSD) of the relative peak areas (RPA) and it showed good repeatability both intra-day (<3%) and inter-day (3.1%). This method, proven to be free of matrix interference, showed that the estimated percent content of ciprofloxacin (102%) was within the official requirements. Moreover, due to its ease of use and robustness, the method should also be applicable in less well controlled laboratory environments.

Place, publisher, year, edition, pages
2016. Vol. 129, 1-8 p.
Keyword [en]
Ciprofloxacin, CE-(CD)-D-4, Quality control, Pharmaceutical analysis
National Category
Pharmaceutical Sciences Analytical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-309928DOI: 10.1016/j.jpba.2016.06.035ISI: 000393847600001PubMedID: 27386824OAI: oai:DiVA.org:uu-309928DiVA: diva2:1053071
Available from: 2016-12-08 Created: 2016-12-08 Last updated: 2017-03-17Bibliographically approved

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