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2003•Unpublished venueRequires access

Determination of Formaldehyde in Hydro-Products

Ge Xing

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Abstract

A new catalytic photometric method for the determination of formaldehyde was developed. It was based on the fact that the oxidation of bromocresol purple by potassium bromate was catalyzed by formaldehyde in phosphoric acid medium,the calibration curve showed linearity in the range from 0.2～8 mg/L and the minimum of detection was 2.0×10~-4g/L. It was applied to the determination of trace amounts of formaldehyde in Hydro-products, and gave results as accurate as those by HPLC.

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What this paper is about

A new catalytic photometric method for the determination of formaldehyde was developed. It was based on the fact that the oxidation of bromocresol purple by potassium bromate was catalyzed by formaldehyde in phosphoric acid medium,the calibration curve showed linearity in the range from 0.2～8 mg/L and the minimum of detection was 2.0×10~-4g/L. It was applied to the determination of trace amounts of formaldehyde in Hydro-products, and gave results as accurate as those by HPLC.

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Available abstract

A new catalytic photometric method for the determination of formaldehyde was developed. It was based on the fact that the oxidation of bromocresol purple by potassium bromate was catalyzed by formaldehyde in phosphoric acid medium,the calibration curve showed linearity in the range from 0.2～8 mg/L and the minimum of detection was 2.0×10~-4g/L. It was applied to the determination of trace amounts of formaldehyde in Hydro-products, and gave results as accurate as those by HPLC.

Key concepts: Potassium bromate, Formaldehyde, Calibration curve, Chemistry, Phosphoric acid, Chromatography, Bromate, Detection limit

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