格列齐特中亚硝酸盐的电化学测定法
Determination of nitrite in gliclazide by HPLC-ECD method
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摘要: 目的 建立高效液相-电化学(ECD)检测法测定格列齐特中亚硝酸盐(NO2-)的残留量。方法 阳离子色谱柱,醋酸盐缓冲液(pH为4.3)为流动相。结果 NO2-线性范围0.04~0.80μg,r=0.9995,回收率为99.2%,RSD=1.7%(n=9)。结论 方法灵敏,简便,结果准确。
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关键词:
- 格列齐特 /
- 高效液相-电化学测定法 /
- 亚硝酸盐
Abstract: Objective To establish a HPLC-ECD method for determination of nitrite remaining in gliclazide. Methods A colum of Hypersil-SAX was used. The mobile phase was 13.61g of sodium acetate dissolved in water(pH4.3) with phosphoric acid and diluted to 1000mL. Results The linear range was 0.04~0.80μg(r= 0.9995). The average recovery was 99.2% RSD = 1.7% (n = 9). Conclusion The method was simple and accurate.-
Key words:
- Gliclazide /
- HPLC-ECD /
- nitrite
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