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Literature DB >> 20218682

A simple and highly sensitive colorimetric detection method for gaseous formaldehyde.

Liang Feng¹, Christopher J Musto, Kenneth S Suslick.

Abstract

A colorimetric detection method using amine-functionalized polymer films doped with a pH indicator has been developed for the rapid, sensitive, and quantitative detection of gaseous formaldehyde at concentrations well below the immediately dangerous to life or health (IDLH) limit. In 1 min, visible color changes are easily observed, even down to the permissible exposure limit (PEL) at 750 ppb. The limit of detection is below 50 ppb (7% of the PEL) after 10 min of exposure. This sensor is essentially unaffected by changes in humidity or temperature (4 to 50 degrees C) and is not sensitive to common interferents.

Entities: Chemical Disease Species

Mesh：

Substances：
Gases
Formaldehyde

Year: 2010 PMID： 20218682 PMCID： PMC2854577 DOI： 10.1021/ja910366p

Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419

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