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Issue:
Determination of trace vanadium in tea by three-member complexation spectrophotometry
Author(s):
GUO Guangmei
,
MA Jing
Pages:
184
-
185
Year:
2006
Issue:
10
Journal:
SCIENCE AND TECHNOLOGY OF FOOD INDUSTRY
Keyword:
三元配合物
;
吸光光度法
;
茶叶
;
钒
;
Abstract:
研究了用V-H2O2-PAR三元配合物体系吸光光度法测定茶叶中痕量钒的方法.最大吸收波长为550nm,测定值的RSD≤4.1,钒的平均回收率为94.0%~107.5%.结果表明,该法灵敏度高、选择性好、干扰少.
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