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2011•Journal of Analytical ScienceRequires access

Catalytic Spectrophotometric Determination of Fluoride in Water

Yifei Sun

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Abstract

Under neutral conditions,free fluorion ions can catalyze the discoloration reaction of acidic chrome blue K with H2O2.Based on this,a novel catalytic spectrophotometric method was proposed to determine trace F-.The results showed that the maximum absorption wavelength of the color solution was 522 nm,the linear range of the determination was 0.4～11.2 μg/mL,and the detection limit was 9.9×10-4 μg/mL.The method was used to determine fluoride in water with satisfactory results.

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What this paper is about

Under neutral conditions,free fluorion ions can catalyze the discoloration reaction of acidic chrome blue K with H2O2.Based on this,a novel catalytic spectrophotometric method was proposed to determine trace F-.The results showed that the maximum absorption wavelength of the color solution was 522 nm,the linear range of the determination was 0.4～11.2 μg/mL,and the detection limit was 9.9×10-4 μg/mL.The method was used to determine fluoride in water with satisfactory results.

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Available abstract

Under neutral conditions,free fluorion ions can catalyze the discoloration reaction of acidic chrome blue K with H2O2.Based on this,a novel catalytic spectrophotometric method was proposed to determine trace F-.The results showed that the maximum absorption wavelength of the color solution was 522 nm,the linear range of the determination was 0.4～11.2 μg/mL,and the detection limit was 9.9×10-4 μg/mL.The method was used to determine fluoride in water with satisfactory results.

Key concepts: Chemistry, Detection limit, Catalysis, Fluoride, Linear range, Absorption (acoustics), Ion, Spectrophotometry

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