The Stabilization of Small Concentrations of Formaldehyde in A queous Solutions
- 1 January 1980
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 13 (12) , 1073-1084
- https://doi.org/10.1080/00032718008082573
Abstract
Based on the Hantzsch-reaction, a stabilization (fixation) of small concentrations of formaldehyde in aqueous solutions (20/ml) can be performed, allowing a storage of these solutions for 1 week at room temperature, in darkness. Using the fluorescent nature of 3,5-diacetyl-1,4-dihydrolutidine (λex = 410 nm, λem = 510 nm), formed as a result of the Hantzsch-reaction, CH20-concentrations down to 0.02 μ/ml can be determined fluorimetrically up to 7 days after preparation (sampling).Keywords
This publication has 2 references indexed in Scilit:
- The fluorimetric determination of formaldehydeAnalytica Chimica Acta, 1963
- The colorimetric estimation of formaldehyde by means of the Hantzsch reactionBiochemical Journal, 1953