Determination of dopamine hydrochloride in prefilled syringe by HPLC-ECD
doi: 10.3969/j.issn.1006-0111.2013.02.008
- Received Date: 2012-05-08
- Rev Recd Date: 2012-07-24
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Key words:
- dopamine hydrochloride /
- prefilled syringe /
- HPLC-ECD method
Abstract: Objective To establish a HPLC-ECD method for determination of dopamine hydrochloride in prefilled syringe. Methods The determination was performed on a Diamonsil-C18 analytical column (250 mm×4.6 mm,5 μm) with the mobile phase consisting of methanol-0.11% sodium heptanesulfonate solution (containing 0.1 mmol/L EDTA-2Na and 5% glacial acetic acid, adjusting to pH 3.4 with 1 mol/L NaOH). The silver/silver chloride electrode was used as reference electrode and the glassy carbon electrode was used as the working electrode at the potential of+0. 65 V.The flow rate was 1.0 ml/min and column temperature was 20℃. Results The calibration curve of dopamine hydrochloride were linear in the concentration range of 0.05~5 μg/ml (r=0.999 9,n=5). The average recovery rate of dopamine hydrochloride was (99.19±4.03)% (n=3). RSD of intra-day and inter-day were less than 4% (n=3). The contents of dopamine hydrochlorid in three batches of samples were(102.97±1.11)%. Conclusion The method was accurate,rapid and high sensitivity,which was suitable for the determination of dopamine hydrochloride in prefilled syringe.
Citation: | HUANG Juan, ZHU Quan-gang, ZHANG Ling-juan, CAO Jie. Determination of dopamine hydrochloride in prefilled syringe by HPLC-ECD[J]. Journal of Pharmaceutical Practice and Service, 2013, 31(2): 113-115. doi: 10.3969/j.issn.1006-0111.2013.02.008 |