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Determination of Formaldehyde Based on the Fading Reaction of Methyl Orange by Reversed Flow Injection Spectrophotometry

✍ Scribed by Su, Ling; Guo, Jia Liang; Liu, Zhen; Liu, Lu Sheng; Wei, Wei

Book ID
120527899
Publisher
Trans Tech Publications Inc.
Year
2013
Tongue
English
Weight
248 KB
Volume
295-298
Category
Article
ISSN
1660-9336

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✍ A. Safavi; A.A. Ensafi πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 554 KB

A flow-injection system is proposed for the rapid determination of trace amounts of formaldehyde based on its inhibition of the Brilliant Green-suiphite reaction at pI1 7. Formaldehyde in the range 40-3000 ng ml-' can be determined at a rate of 35 f 5 samples h -I. The limit of detection was 20 ng m