建立反相高效液相色谱法同时测定柿（Diospyros kaki Linn．f．）叶中齐墩果酸和熊果酸的含量。采用Kromasil C18色谱柱（4．6mm×250mm，5μm）；流动相：V（甲醇）：V（0．2％磷酸水溶液）=87：13；流速：0．8mE／rain；检测波长...建立反相高效液相色谱法同时测定柿（Diospyros kaki Linn．f．）叶中齐墩果酸和熊果酸的含量。采用Kromasil C18色谱柱（4．6mm×250mm，5μm）；流动相：V（甲醇）：V（0．2％磷酸水溶液）=87：13；流速：0．8mE／rain；检测波长：210nm；柱温：30℃。齐墩果酸进样量在0．0848-1．696μg范围内线性关系良好，r=0．9996，平均加样回收率为101．3％；熊果酸进样量在0．1408-2．816μg范围内线性关系良好，r=0．9995，平均加样回收率为99．0％。3批样品测定结果表明，本法可作为柿叶中齐墩果酸和熊果酸含量测定的方法。展开更多
An efficient and accurate analytical method was developed for the simultaneous determination of 20 synthetic food additives, including three sweeteners,seven food colorants,nine synthetic preservatives and caffeine,by...An efficient and accurate analytical method was developed for the simultaneous determination of 20 synthetic food additives, including three sweeteners,seven food colorants,nine synthetic preservatives and caffeine,by high performance liquid chromatography （HPLC） with photodiode array detector（PDA）.This method permits the detection of food additives at very low concentrations（0.005-0.150μg/mL）.The applicability was verified by the determination of food additives present in various foodstuffs.展开更多
文摘建立反相高效液相色谱法同时测定柿（Diospyros kaki Linn．f．）叶中齐墩果酸和熊果酸的含量。采用Kromasil C18色谱柱（4．6mm×250mm，5μm）；流动相：V（甲醇）：V（0．2％磷酸水溶液）=87：13；流速：0．8mE／rain；检测波长：210nm；柱温：30℃。齐墩果酸进样量在0．0848-1．696μg范围内线性关系良好，r=0．9996，平均加样回收率为101．3％；熊果酸进样量在0．1408-2．816μg范围内线性关系良好，r=0．9995，平均加样回收率为99．0％。3批样品测定结果表明，本法可作为柿叶中齐墩果酸和熊果酸含量测定的方法。
基金the financial support by the Food Safety Fund of General Administration of Quality Supervision,Inspection and Quarantine of Chinathe Key Scientific Program of National Institute of Metrology of China(Nos.ASPAQ201010 and AJDYX1116)
文摘An efficient and accurate analytical method was developed for the simultaneous determination of 20 synthetic food additives, including three sweeteners,seven food colorants,nine synthetic preservatives and caffeine,by high performance liquid chromatography （HPLC） with photodiode array detector（PDA）.This method permits the detection of food additives at very low concentrations（0.005-0.150μg/mL）.The applicability was verified by the determination of food additives present in various foodstuffs.
