Catalytic Spectrophotometric Determination of Trace Formaldehyde in Disposable Paper Cups

Abstract

Abstract: Based on the catalytic effects of trace formaldehyde on the reaction between potassium bromate and oxidized azur A,a new catalytic spectrophotometric method has been developed in this paper.The detection limit is 0.019 mg/L with linear range of 0.045～0.56 mg/L.The RSD(relative standard deviation)is 0.38%.This method has been applied for the detection of trace formaldehyde in disposable paper cups.The results showed that the paper cups can be used safely,with little formalde- hyde content.

Key words: formaldehyde, catalytic spectrophotometry, azur A, throw-away paper cups

HUO Huan, CHEN Xiao-Lan, CHEN Bo, CHEN Chao-Yan. Catalytic Spectrophotometric Determination of Trace Formaldehyde in Disposable Paper Cups[J]. FOOD SCIENCE, 2007, 28(4): 252-254.

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Catalytic Spectrophotometric Determination of Trace Formaldehyde in Disposable Paper Cups

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