用高效液相色谱法测定柑桔皮精油中β－胡萝卜素含量

A new simple and rapid quantitative,emethod was established for the determination of β-carotene in citruspeei oil by means of reversed-phase HPLC with ODS column and methanol/chloroform(90:10)eluate。 There covery for standards was 96.4%。The content of β-carotene in citrus oil from Huangyan was 7.7mg/100mL.     

柑桔皮中微量元素的ICP－AES测定方法研究

本文采用ＩＣＰ－ＡＥＳ定量测定柑桔皮精油及柑桔皮渣中微量元素。对４种柑桔皮精油及７种柑桔皮渣中硼、镉、铬、铜、铁、锰、钼和锌进行测定。８种微量元素的样品加标回收率为８６％－１０８％，并且在测定过程中有很好的重现性。本法快速、简便、准确