湖北农业科学 ›› 2018, Vol. 57 ›› Issue (22): 124-127.doi: 10.14088/j.cnki.issn0439-8114.2018.22.034

• 检测分析 • 上一篇    下一篇

超高效液相色谱法快速测定烟草样品中的植物色素

王晋, 黄海涛, 刘欣, 许永, 李晶, 孔维松, 张涛, 张承明, 杨光宇, 李雪梅   

  1. 云南中烟工业有限责任公司技术中心,昆明 650106
  • 收稿日期:2018-04-16 出版日期:2018-11-25 发布日期:2019-12-19
  • 通讯作者: 李 晶,助理研究员,(电子信箱)lijing@ynzy-tobacco.com。
  • 作者简介:王 晋(1984-),男,江西萍乡人,助理研究员,博士,主要从事烟草化学研究,(电话)18687660819(电子信箱)wangjin@iccas.ac.cn

Rapid Determination of Plant Pigments in Tobacco by Ultra Performance Liquid Chromatography

WANG Jin, HUANG Hai-tao, LIU Xin, XU Yong, LI Jing, KONG Wei-song, ZHANG Tao, ZHANG Cheng-ming, YANG Guang-yu, LI Xue-mei   

  1. Research and Development Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming 650106,China
  • Received:2018-04-16 Online:2018-11-25 Published:2019-12-19

摘要: 建立超高效液相色谱法快速测定烟草中植物色素(新黄质、紫黄质、叶黄素、叶绿素-a、叶绿素-b、β-胡萝卜素)检测方法。90%丙酮超声萃取30 min,色谱柱为Waters ACQUITY UPLCTM BEH C18(2.1 mm×50 mm,1.7 μm),流动相为乙腈-水梯度洗脱,以体积比按(乙腈90%+10%水),4.0 min(100%乙腈)的梯度条件,流速为0.8 mL/min,用二极管阵列检测器检测。6种色素在5 min内分离,检测限15~22 ng/mL,平均回收率为93%~105%。采用自主设计的样品萃取瓶进行前处理,前处理简单快速,同时,色谱分离周期明显缩短,与目前行业标准相比,样品分析效率提高了4倍以上。

关键词: 超高效液相色谱, 烟草, 植物色素, 快速测定

Abstract: Established a ultra performance liquid chromatography(UPLC)method for the rapid determination of plant pigments(neoxanthin,violaxanthin,lutein,chlorophyll-a,chlorophyll-b and β-carotene) in tobacco. The plant pigments were extracted from samples with 90% acetone by ultra-sonic extraction. Then,the plant pigments were separated by Waters ACQUITY UPLCTM BEH C18(2.1 mm×50 mm,1.7 μm) column, with and water mixture as mobile phase at a flow-rate of 0.8 mL/min. It eluted with gradient elution (90% V(acetonitrile))+10% V(water)) at the beginning,then the gradient elution replaced by acetonitrile 4 min later. These plant pigments were detected by diode array detector. Under the optimal conditions,6 kinds of plant pigments could be effectively separated within 5 min. The limits of detection(LODs) of 6 kinds of plant pigments were 15~22 ng/mL and the average recoveries were in the range of 93% to 105%. Via the self-designed sample extraction bottle using for pretreatment,and improved chromatography conditions,this method efficiency was enhanced 4 times than the current tobacco standard.

Key words: ultra performance liquid chromatography, tobacco, plant pigments, rapid determination

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