摘要
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%。
A method for determination of carminic acid by spectrophotometry was established. The results showed that the 1.0mol/L sodium phosphate buffer at pH 4.0 was appropriate to dissolve carminic acid. When the concentration of carminic acid ranged between 1.25 and 160μg/mL, the linearly dependent coefficient of absorbanee reached 0.9997.the recovery rate was 104%- 110%, and the average relative standard deviation was 0.78% - 2.13%.
出处
《中国酿造》
CAS
北大核心
2009年第6期152-154,共3页
China Brewing
基金
宁波市青年基金(2005A620013)
浙江省新苗计划(2007G60G2210020)
关键词
分光光度法
胭脂红酸
检测
spectrophotometry
carminic acid
determination
