ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary A method has been worked out for the spectrophotometric determination of total vicinal diketones. It is based on the distillation of diacetyl and/or 2,3-pentanedione, the subsequent condensation with isoniazide (yielding the corresponding hydrazones), the complexation with zirconium(IV) and the photometric measurement of the resulting yellow complexes at 410 nm. The two reactions were studied separately. Variables such as pH, heating time, and excess reactives are discussed. The method may be used for the determination of these compounds in foods.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00323972
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