摘要
应用4阶导数光谱测定食品中糖精钠,样品及加标样品在232.2nm和224,8nm出现了糖精钠的特征吸收峰,样品提取液加标回收率为78.3%~112.7%,均值为97.4%,加标样品回收率为73.8%~108.6%,均值为94.4%。样品测定相对标准偏差为0.0%~3.8%。
Sodium saccharin in food was analyzed by derivative spectrum. The peaks of sodium saccharin in the samples and the added standards appeared at 232. 2 nm and 224. 8 nm at the fourth derivative spectrum. The recoveries of sodium saccharin in samples extracted by ether and then added with standards were 78.3% ̄112.7%, and the recoveries of the added standard samples were 73.8% ̄108.6%. The relevant standard deviation of samples were 0% ̄3.8%.
出处
《卫生研究》
CAS
CSCD
北大核心
1996年第2期123-124,共2页
Journal of Hygiene Research
关键词
导数光谱
食品
糖精钠
sodium saccharin
food
derivative spectrum analysis