B-Z化学振荡体系法鉴别黑毛茶  

Identification Dark Tea by Using B-Z Chemical Oscillating Method

作　　者：刘鉴娴 龙立平 杨晶 贺铖 LIU Jianxian;LONG Liping;YANG Jin;HE Cheng(Hunan Provincial Key Lab of Dark Tea and Jin-hua,Hunan City University,Yiyang,Hunan 413000,China)

机构地区：[1]湖南城市学院黑茶金花湖南省重点实验室,湖南益阳413000

出　　处：《湖南城市学院学报（自然科学版）》2018年第5期74-78,共5页Journal of Hunan City University:Natural Science

基　　金：国家自然科学基金项目(215450030);2017年地方高校国家级大学生创新创业训练计划项目(201711527007);湖南省高校科技创新团队支持计划项目(湘教通[2014]207号);湖南省黑茶金花重点实验室项目(湘科规财[2016]8号)

摘　　要：采用黑毛茶-丙二酸-硫酸铈铵-溴酸钾-硫酸B-Z振荡体系,得到不同地域黑毛茶的指纹图谱并讨论其特征参数和相似度﹒实验表明,振荡反应的最优实验条件为:溴酸钾0.301 7 mol/L,硫酸3.0 mol/L,丙二酸0.799 mol/L,硫酸铈铵0.006 09 mol/L,黑毛茶原液0.50 g/L,振荡体系的总体积为50 mL,且反应温度为30℃;在此振荡反应条件下,不同地区的黑毛茶有各不相同的指纹图谱,可根据指纹图谱的特征参数来计算黑毛茶的相似度,从而辨别出不同产地的黑毛茶﹒In order to obtain the fingerprints of dark tea in different regions and their characteristic parameters and similarities were discussed. Experiments show that the optimal experimental conditions for chemical finger print are as follows： potassium bromated 0.301 7 mol/L, sulfuric acid 3.0 mol/L, melodic acid 0.799 mol/L, ammonium cerium sulfate 0.006 09 mol/L, dark tea stock solution 0.50 g/L. The total volume of the system is 50 mL and the reaction temperature is 30 ℃. Under this oscillating reaction conditions, the dark tea in different regions is of different finger print. The similarity of dark tea is calculated based on the characteristic parameters of the finger print to distinguish the difference origin of dark tea.

关 键 词：黑茶 B-Z振荡反应 指纹图谱 

分 类 号：O646[理学—物理化学]