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- W2364846821 abstract "A simple and sensitive fluorescence quenching method for the determination of Cr(Ⅵ) was investigated. The method is based on the reaction of Cr(Ⅵ) with potassium iodide giving iodine (I 2), which is estimated by its fluorescence quenching effect on the fluorescence reagent 2′7′ dichlorofluorescein (DCF). The calibration graph is linear over the range 0.20～2.50μg per 25ml Cr(Ⅵ). The linear regression equation is Δ F=12.12C +0.19 and the relative coefficient is 0.9993. The detection limit is 0.10μg per 25ml Cr(Ⅵ). The method has been applied successfully to the determination of Cr(Ⅵ) in simulated mixtures. The recovery of this method for detecting Cr(Ⅵ) is 100%～103%." @default.
- W2364846821 created "2016-06-24" @default.
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- W2364846821 date "2002-01-01" @default.
- W2364846821 modified "2023-09-25" @default.
- W2364846821 title "FLUORESCENCE QUENCHING FLUOROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF CHROMIUM(VI)" @default.
- W2364846821 hasPublicationYear "2002" @default.
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