Ultraviolet spectrophotometric determination of the purity of technical pyrazon
- 1 October 1978
- journal article
- research article
- Published by Wiley in Pesticide Science
- Vol. 9 (5) , 387-392
- https://doi.org/10.1002/ps.2780090503
Abstract
A method for the analysis of technical samples of the herbicide pyrazon is described. A double‐beam recording spectrophotometer with digital data recording accessory was used in the analysis of the multicomponent mixtures. The absorbances were measured in the u.v. region between 346 and 282 nm. Two alternative u.v. spectrophotometric methods are presented which allow the determination of all three components in technical products of pyrazon without any preliminary separation.Keywords
This publication has 5 references indexed in Scilit:
- Polarographic determination of 4,5-dichloro-2-phenyl-3(2H)-pyridazinoneAnalytical and Bioanalytical Chemistry, 1975
- Gas chromatographic determination of technical pyrazon (5-amino-4-chloro-2-phenyl-3(2H)pyridazinone)Pesticide Science, 1974
- Column and thin-layer chromatographic determination of 5-amino-4-chloro-2-phenyl-3-(2H)-pyridazinoneJournal of Chromatography A, 1967
- Smoothing and Differentiation of Data by Simplified Least Squares Procedures.Analytical Chemistry, 1964