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二维液相色谱法同时测定饲料中维生素A、维生素D3、维生素E

作  者:
赵玉富;咸伟玥
单  位:
黑龙江省质量监督检测研究院
关键词:
二维液相色谱;维生素A;维生素D3;维生素E;饲料
摘  要:
建立二维液相色谱法同时测定饲料中VA、VE、VD3含量的方法.采用皂化石油醚提取待测样品,以双四元泵阀切换双检测器二维液相色谱同时分析VA、VE及VD3,以InfinityLab Poroshell 120 EC-C8(3.0 mm*150 mm,2.7μm)为一维色谱柱,流动相甲醇-乙腈-水0.6 mL·min-1梯度洗脱,以Zorbax Eclipse PAH(4.6 mm*250 mm,5μm)为二维色谱柱,流动相甲醇1.0 mL·min-1洗脱,柱温25℃,一维DAD检测器采用波长切换方式检测(VA:326 nm;VE:285 nm),二维DAD检测器检测(VD3:264 nm).结果表明,VA在0.0945~14.17μg·mL-1浓度范围内线性关系良好,VE在1.21~181.5μg·mL-1浓度范围内线性关系良好,VD3在0.0163~2.445μg·mL-1浓度范围内线性关系良好,相关系数r均为0.9998,分析时间为23 min.说明二维液相色谱法可快速准确测定饲料中维生素A、维生素D3、维生素E.
作  者:
ZHAN Yufu;XIAN Weiyue;Heilongjiang Institute of Quality Supervision and Testing;
关键词:
two dimensional HPLC;;Vitamin A;;Vitamin D3;;Vitamin E;;feed
摘  要:
To develop a two-dimensional liquid chromatography method for the content determination of VA,VD_3,VE in feed,samples were directly extracted by Petroleum ether with the assitance of ultrasonic,simultaneous Analysis of Vitamin A,Vitamin E and Vitamin D_3by Two-dimensional Liquid Chromatography with Dual Quadruple Pump Valve Switching Dual Detector,InfinityLab Poroshell 120 EC-C8 as first dimensional column(3.0 mm×150 mm,2.7μm),with flow rate at 0.6 mL·min~(-1);Zorbax Eclipse PAH as second dimensional column(4.6 mm×250 mm,5μm),with flow rate at 1.0 mL·min~(-1);the column temperature was 35℃,the one-dimensional DAD detector was detected by wavelength switching(VA:326 nm;VE:285 nm),2D DAD detector detection(VD_3:264 nm).The results showed that the linear range of VA,VD_3,VE was good among 0.0945-14.17,1.21-181.5,and 0.0163-2.445μg·mL~(-1),respectively,r=0.9998.The established method was fast,accurate and with good reproducibility for the content determination of VA,VD_3and VE in soft capsules and multivitamin tablets.

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