Determination of the lifetime of intermediate products in the reduction of oxygen by means of oscillographic polarography

1973 ◽  
Vol 6 (5) ◽  
pp. 582-584
Author(s):  
N. A. Gordienko ◽  
L. I. Antropov
Keyword(s):  
Intermediate Products ◽  
Oscillographic Polarography

The Use of Piezosensors for Determination of Carboxylic Acids in the Intermediate Products of Edible Ethanol Production

2020 ◽  
Vol 56 (14) ◽  
pp. 1379-1383
Author(s):  
Cao Nhat Linh ◽  
O. V. Duvanova ◽  
S. Yu. Nikitina ◽  
A. N. Zyablov
Keyword(s):  
Ethanol Production ◽  
Carboxylic Acids ◽  
Intermediate Products

Collaborative Study of Confirmative Procedures by Single Sweep Oscillographic Polarography for the Determination of Organophosphorus Pesticide Residues in Nonfatty Foods

1969 ◽  
Vol 52 (4) ◽  
pp. 811-817
Author(s):  
Raymond J Gajan
Keyword(s):  
Pesticide Residues ◽  
Methyl Parathion ◽  
Collaborative Study ◽  
Organophosphorus Pesticide ◽  
Oscillographic Polarography ◽  
Quantitative Results ◽  
Multiple Detection

Abstract Ten laboratories collaboratively studied several single sweep oscillopolarographic methods designed to be used as confirmative procedures for several organophosphorus pesticide residues determined by GLC. Polarographic methods for the detection and determination of parathion, methyl parathion, diazinon, and/or malathion at 0.5 and 2.0 ppm in extracts of apples and lettuce were included in this study. All 10 laboratories successfully detected the organophosphorus pesticide residues and quantitative results were reported by seven laboratories. These results show that the polarographic methods can be used for rapidly confirming results obtained by the multiple detection procedures now in use.

Photocatalytic degradation of pesticide methomyl: determination of the reaction pathway and identification of intermediate products

2006 ◽  
Vol 5 (5) ◽  
pp. 477 ◽  
Author(s):  
M. Tamimi ◽  
S. Qourzal ◽  
A. Assabbane ◽  
J.-M. Chovelon ◽  
C. Ferronato ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Reaction Pathway ◽  
Intermediate Products

Determination of Trace Manganese in the Source Water by Oscillographic Polarography

2010 ◽  
Vol 439-440 ◽  
pp. 109-112
Author(s):  
Ji Hong Zhou ◽  
Yan Jun Lian
Keyword(s):  
Standard Deviation ◽  
Water Content ◽  
Relative Standard Deviation ◽  
Source Water ◽  
Industrial Water ◽  
Oscillographic Polarography ◽  
Relative Standard ◽  
Low Toxicity

Manganese in water has low toxicity. The product will form the yellow stain when the industrial water content is high. There are many ways to monitor it. The determination of trace Manganese in the YangjiaoPu source water by oscillographic polarography is introduced in this paper. The result indicate that the standard deviation of this method is 0.001~0.002 mg/L, the relative standard deviation is 2.3~2.5% and the mark-on recovery ranged from 96.8%～105.8%. At the same time several problems needing attention about experiment process are posed in this paper.

scholarly journals Determination of Carbaryl in Crops by Oscillographic Polarography

1965 ◽  
Vol 48 (5) ◽  
pp. 958-962 ◽  
Author(s):  
Raymond J Gajan ◽  
Walter R Benson ◽  
Josephine M Finocchiaro
Keyword(s):  
Hydrolysis Product ◽  
Reference Electrode ◽  
Peak Potential ◽  
Characteristic Peak ◽  
Oscillographic Polarography

Abstract The insecticide carbaryl can be determined quantitatively in the presence of a-naphthol by means of oscillographic polarography. A characteristic peak for the hydrolysis product of nitrosated carbaryl is obtained which has a peak potential of –0.45 ± .05 v vs. a mercury pool reference electrode. Using a modified cleanup method, as little as 0.2 ppm of carbaryl residues on certain fruils and vegetables has been determined. Recoveries from fortified crops averaged 95.3% ± 9 . 0% at the 0.2, 5.0, and 10.0 ppm levels. Among those pesticides tested, only o-phenylphenol interfered.

Sign in / Sign up

Export Citation Format

Share Document