Differential-pulse polarographic micro-determination of formaldehyde via in situ derivatization with Girard's reagent T

Wing Hong CHAN*, Wai Cheong Chung, Pei Xiang Cai

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

10 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2233-2236
Number of pages4
JournalAnalyst
Volume120
Issue number8
DOIs
Publication statusPublished - 1995

Scopus Subject Areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

User-Defined Keywords

  • Differential-pulse polarography
  • Formaldehyde
  • Girard's reagent T
  • Micro-determination
  • Organic analysis

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