NEW QUANTITATIVE-DETERMINATION OF BETA-DI KETONES BY NORMAL OR DERIVATIVE SPECTROPHOTOMETRY WITH USE OF 2,3-DIAMINONAPHTHALENE AS REAGENT OF DERIVATIZATION

Authors
MARIAUD M CONTI M LEVILLAIN P
Citation
M. Mariaud et al., NEW QUANTITATIVE-DETERMINATION OF BETA-DI KETONES BY NORMAL OR DERIVATIVE SPECTROPHOTOMETRY WITH USE OF 2,3-DIAMINONAPHTHALENE AS REAGENT OF DERIVATIZATION, Analusis, 23(2), 1995, pp. 87-90
Citations number
18
Categorie Soggetti
Chemistry Analytical
Journal title
Analusis → ACNP
ISSN journal
03654877
Volume
23
Issue
2
Year of publication
1995
Pages
87 - 90
Database
ISI
SICI code
0365-4877(1995)23:2<87:NQOBKB>2.0.ZU;2-B
Abstract
New quantitative determination of beta-diketones is described. 2,3-dia minonaphtalene reacts with beta-diketones to yield 2,3-b naphto 1,5-di azepinium salts which possess high absorbance near 310 nm. Absorbance of 2,3-diaminonaphtalene excess is suppressed by use of a derivative s pectrophotometric procedure (zero-crossing point method). The calibrat ion graphs are linear in the concentration range 2-30 mumol l-1. Limit s of detection are in the order of 0.8 mumol l-1.