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羟乙基淀粉130/0.4置换度测定方法的改进

Drug Standards of China(2008)

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Abstract
目的:改进羟乙基淀粉130/0.4置换度测定方法。方法:采用气相色谱法测定,以氢碘酸水解羟乙基淀粉130/0.4中羟乙基成碘乙烷。色谱柱:Agilent DBT-5(0.32mm×30m,膜厚0.25μm);检测器:氢火焰离子化检测器;载气:N2;流速:2mL·min-1;分流比∶1∶40;应用程序升温(50℃,保持2min,以45℃·min-1,升至230℃,保持4min),进样口温度250℃,检测器温度280℃。结果:碘乙烷在4.13~41.34g·L-1范围内呈良好的线性关系,r=0.9998(n=5)。平均回收率为98.34%,RSD为1.7%(n=6)。结论:该法简便快捷专属性好,可用于羟乙基淀粉130/0.4置换度测定。
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Key words
Subsuttition,Gas chromatography,Hydroxyethyl starch 130/0.4
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