Spectrophotometric Determination of Small Quantities of 2,4-Dichlorophenoxyacetic Acid and 2,4,5-Trichlorophenoxyacetic Acid Using Partition Chromatography

1952 ◽  
Vol 24 (12) ◽  
pp. 1968-1971 ◽  
Author(s):  
Nathan Gordon ◽  
Morton Beroza
Keyword(s):  
Spectrophotometric Determination ◽  
Dichlorophenoxyacetic Acid ◽  
Partition Chromatography ◽  
Trichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid

Spectrophotometric Determination of 2,4-Dichlorophenoxyacetic Acid Using Extraction with Astrafloxin

2020 ◽  
Vol 75 (7) ◽  
pp. 909-912
Author(s):  
Zh. A. Kormosh ◽  
E. S. Zhurba ◽  
I. P. Antal ◽  
A. Zh. Kormosh ◽  
Ya. R. Bazel
Keyword(s):  
Spectrophotometric Determination ◽  
Dichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid

scholarly journals Electroanalytical Methodology for the Direct Determination of 2,4-Dichlorophenoxyacetic Acid in Soil Samples Using a Graphite-Polyurethane Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Fernanda Ramos de Andrade ◽  
Renata Alves de Toledo ◽  
Carlos Manoel Pedro Vaz
Keyword(s):  
Irreversible Process ◽  
Direct Determination ◽  
Parameters Optimization ◽  
Dichlorophenoxyacetic Acid ◽  
Reduction Peak ◽  
Undisturbed Soil ◽  
Polyurethane Composite ◽  
Experimental Parameters ◽  
2,4 Dichlorophenoxyacetic Acid

An electroanalytical methodology was developed for the direct determination of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) using a graphite-polyurethane composite electrode and square wave voltammetry (SWV). 2,4-D exhibited one reduction peak with characteristics of an irreversible process at −0.54 V (versus Ag/AgCl), which is controlled by the diffusion of the reagent on the electrode surface. After the experimental parameters optimization (pH 2.0,f=50 s−1,a=0.50 V, andΔEi=0.03 V), analytical curves were constructed in the range of 0.66 mg L−1to 2.62  mg L−1. Detection (LD) and quantification (LQ) limits were 17.6 μg L−1and 58.6 μg L−1, respectively. The methodology was successfully applied to measure the percolation of the herbicide 2,4-D in undisturbed soil columns of different granulometric compositions.

Amplifying Bienzyme Cycle-linked Immunoassays for Determination of 2,4-Dichlorophenoxyacetic Acid

1996 ◽  
Vol 799 (1 Enzyme Engine) ◽  
pp. 519-524 ◽  
Author(s):  
FRANK F. BIER ◽  
EVA EHRENTREICH-FÕRSTER ◽  
FRIEDER W. SCHELLER
Keyword(s):  
Dichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid
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