Citation:
HUANG Bao-Mei, YAO Cheng-Wei, BIAN Qing-Quan, WANG Zhi-Guo, MO Jin-Yuan. Determination of Mexiletine Hydrochloride by Capillary Electrophoresis with Amperometric Detection[J]. Chinese Journal of Applied Chemistry,
;2008, 25(11): 1330-1333.
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Mexiletine hydrochloride was determined by capillary electrophoresis with amperometric detection(CE-AD).The pH,type,concentration of buffer,applied voltage and sample injection time were selected as the investigation variables.Under the optimized conditions:a running buffer composed of 30 mmol/L Na2B4O7 at a pH value of 8.5,separation voltage 15 kV,injection time 10 seconds and detection potential at 0.6 V,a linearity exists between peak height(Y) and mass concentration of Mexiletine hydrochloride(c) in a range of 0.05~50 mg/L,r=0.999 4,and the determination limit is 0.01 mg/L.
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