摘要
为了测定保健食品中的生物素的含量,建立方便可靠的测定方法,采用高效液相色谱法对保健食品中生物素含量进行了测定。使用HypersilODS色谱柱(4.6mm×250mm,5μm),以乙腈+0.05mol L磷酸二氢钾(15+85,pH=3.5)为流动相,检测波长200nm。方法的加标回收率为86.8%~106.0%,RSD为8.4%,最低检出量为0.5mg kg。该方法简便、准确,有良好的重现性,技术参数指标符合食品理化分析的要求。
A HPLC method was established for the determination of biotin in health foods. The HPLC used Hypersil ODS eolumn, a mixture of CH3 CN + 0.05 mol/L KH2 PO4 (15 + 85, pH=3.5) as mobile phase and UV detection at 200 nm. The recovery was86.8% - 106.0%, The RSD was 8.4%, the detection limit was 0.5 mg/kg. The method is simple, accurate and reproducible.
出处
《中国食品卫生杂志》
2006年第3期234-236,共3页
Chinese Journal of Food Hygiene
关键词
营养保健品
色谱法
高压液相
生物素
Dietary Supplements
Chromatography, High Pressure Liquid
Biotin