Differential-pulse polarographic micro-determination of formaldehyde via in situ derivatization with Girard's reagent T
- 1 January 1995
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 120 (8) , 2233-2236
- https://doi.org/10.1039/an9952002233
Abstract
Formaldehyde, after in situ derivatization with Girard's reagent T, was determined in aqueous solution using differential-pulse polarography. A single peak was obtained at pH 8 when using 1 × 10–3 mol l–1 NH4Cl/NH3 as the supporting electrolyte. The minimum detectable concentration of formaldehyde was 1.3 × 10–6 mol l–1. As little as 0.2 µg of formaldehyde can be determined accurately by using this method. In addition, acetaldehyde was proven to not interfere with the formaldehyde determination.Keywords
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