Spectrophotometric determination of formaldehyde

Authors
Gayathri, N Balasubramanian, N
Citation
N. Gayathri et N. Balasubramanian, Spectrophotometric determination of formaldehyde, ANAL LETTER, 33(14), 2000, pp. 3037-3050
Citations number
11
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL LETTERS
ISSN journal
00032719 → ACNP
Volume
33
Issue
14
Year of publication
2000
Pages
3037 - 3050
Database
ISI
SICI code
0003-2719(2000)33:14<3037:SDOF>2.0.ZU;2-Q
Abstract
A simple and very sensitive method for the determination of formaldehyde is described. Formaldehyde reacts with phloroglucinol in acid medium producin g a yellow dye with lambda (max) at 435nm. The method is useful for the det ermination of formaldehyde in the range 0-2.5 mug in an overall volume of 1 0mL with molar absorptivity of 8.3 x 10(4) 1 mol(-1) cm(-1) and a relative standard deviation of 2% at 1.5 mug level (n=10).