Determination of valproate in serum by precolumn derivatization HPLC
doi: 10.3969/j.issn.1006-0111.2016.03.016
- Received Date: 2014-10-31
- Rev Recd Date: 2015-04-09
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Key words:
- valproate /
- serum concentration /
- derivatization /
- HPLC
Abstract: Objective To establish a determination method for valprate in serum. Methods Serum sample was acidified by sulfuric acid and extracted with ethyl ether, cyclohexanecarboxylic acid was selected as an internal standard, α-bromoacetophenone as derivative reagent. Determination was performed with HPLC with methanol:water (70:30) as the mobile phase.The nalytical column was Eclipse Plus C18 (150 mm×4.6 mm, 5 μm), detected at 248 nm, the flow rate was 1.0 ml/min. Results The linear rang of valproate was 8.65~173 μg/ml. The mean relative recovery was bigger than 99.27%. Both the relative standard deviation (RSD) of inter-day and intra-day was less than 5%. Conclusions The method is rapid, accurate, sensitive and suitable for clinical therapeutic drug monitoring.
Citation: | CHEN Bi, HUANG Xiaoliang, LI Hui. Determination of valproate in serum by precolumn derivatization HPLC[J]. Journal of Pharmaceutical Practice and Service, 2016, 34(3): 255-257. doi: 10.3969/j.issn.1006-0111.2016.03.016 |