Discussion of the fluoride determination condition in tea(茶叶中氟的测定条件的探讨)

考察现有氟离子的测定方法,探讨用氟离子选择性电极法测定茶叶中的氟的条件.除了电极测定条件外,茶叶样品的浸提处理对测定的准确度有很大影响.从缓冲溶液的成分、茶叶粉碎度、浸泡时间、浸泡所用盐酸的浓度、温度、茶水比例等方面研究最佳的测定条件为在室温下,用0.10 mol • L-1的盐酸浸泡粉碎过的茶叶,配成茶水比例为1 g茶:50 mL水,浸泡1 h....

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Bibliographic Details
Main Authors: CHENQian(陈倩), GUOWen-fei(郭雯飞)
Format: Article
Language:zho
Published: Zhejiang University Press 2011-11-01
Series:Zhejiang Daxue xuebao. Lixue ban
Subjects:
Online Access:https://doi.org/10.3785/j.issn.1008-9497.2011.06.008

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