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  • Hydrazine reagents as derivatizing agents in environmental analysis--a critical review.

Hydrazine reagents as derivatizing agents in environmental analysis--a critical review.

Fresenius' journal of analytical chemistry (2001-03-03)
M Vogel, A Büldt, U Karst
ABSTRACT

Hydrazine reagents are a well-known group of derivatizing agents for the determination of aldehydes and ketones in liquid and gaseous samples. Within this article, the most important hydrazine reagents are critically summarized, and their major applications in different fields, including environmental analysis, food chemistry and industrial analysis are introduced. As 2,4-dinitrophenylhydrazine (DNPH) is the basic reagent for several international standard procedures, its properties are discussed in detail. Particular focus is directed on the chemistry of the hydrazine reagents, and chemical interferences are considered. Recent methods for the determination of various oxidants using hydrazine reagents are presented as well. Due to limited space, this review does not cover the related field of carbohydrate analysis, although many chemical aspects are similar.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Hydrazine, anhydrous, 98%
Sigma-Aldrich
Hydrazine solution, 1 M in acetonitrile
Sigma-Aldrich
Hydrazine solution, 1.0 M in THF
Sigma-Aldrich
Hydrazine solution, 1.0 M in ethanol
Sigma-Aldrich
Hydrazine solution, 35 wt. % in H2O