分光光度法测定胭脂红酸的研究

China Brewing(2009)

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Abstract
建立了分光光度法检测胭脂红酸的方法。结果表明,pH4.0浓度为1.0mol/L的磷酸钠缓冲液较适宜作胭脂红酸的溶解剂,胭脂红酸在1.25μg/mL~160μg/mL的浓度范围内的吸光度值线性相关系数达0.9997,方法回收率为104%~110%,平均相对标准偏差为0.78%~2.13%。
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Key words
carminic acid,spectrophotometry,determination
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