Optimization of an analytical method for the spectrophotometric determination of copper in tea and water samples after ultrasonic assisted cloud point extraction using a benzothiazole fluorescein derivative complexing agent
Keyword(s):
BTF is exists with spirolactone species with adding Cu2+, which leads to the absorbance intensity is decreased gradually and the decrease of the absorbance value is linear for Cu2+.
2010 ◽
Vol 23
(1)
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pp. 95-99
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2013 ◽
Vol 25
(4)
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pp. 2208-2212
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2009 ◽
Vol 44
(4)
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pp. 983-994
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2014 ◽
Vol 26
(16)
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pp. 5305-5310
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