Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Ajai K. Pillai"'
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 23, Iss 3, Pp 451-456 (2009)
In the present investigation, a simple and sensitive spectrophotometric method for the determination of nitrogen dioxide in various environmental samples is described. Nitrogen dioxide in air was fixed as nitrite ion in alkaline sodium arsenite absor
Externí odkaz:
https://doaj.org/article/c526bd67192e4374a402c7229035880d
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 21, Iss 1, Pp 129-134 (2007)
A sensitive spectrophotometric method has been developed for the trace determination of copper using leucocrystal violet as chromogenic reagent. The proposed method is based on the reaction of copper(II) with potassium iodide in acid medium to libera
Externí odkaz:
https://doaj.org/article/5c89fedfc0a24f6787864afc06cc2a06
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 139:471-476
A novel, sensitive, selective and simple kinetic spectrophotometric method has been developed for determination of trace levels of carbaryl based on its inhibitory effect on the oxidation of rhodamine-B by chlorine and bromine released from reaction
Publikováno v:
Journal of Analytical Chemistry. 67:437-442
A simple spectrophotometric method has been proposed for the determination of widely used pyrethroid pesticides, cypermethrin and fenvalerate. The method is based on the hydrolysis of these pesticides, upon which they release cyanide. The cyanide is
Publikováno v:
Journal of Analytical Chemistry. 65:582-587
The reaction of Cr(VI) with hydroxylamine resulting in its oxidation to nitrite has been utilized for the determination of chromium. The nitrite thus liberated diazotizes p-aminoacetophenone to form diazonium salt which is further coupled with phloro
Publikováno v:
Journal of the Korean Chemical Society. 54:165-168
Rapid Spectrophotometric Determination of Trace Amounts of Cyanide and Hydrogen Cyanide Using p-Aminoacetanilide in Various Samples Prachi Parmar*, Ajai Kumar Pillai, and Vinay Kumar Gupta† Department of Chemistry, Govt. V.Y.T. Autonomous College D
Publikováno v:
Journal of Dispersion Science and Technology. 30:609-612
A simple and sensitive spectrophotometric method for the determination of hydrogen peroxide, based on the increase in color intensity of dye on addition of surfactant, is described. Hydrogen peroxide is first reacted with potassium iodide in acidic m
Publikováno v:
Journal of Planar Chromatography – Modern TLC. 22:77-82
A simple and sensitive method is reported for separation, detection, and simultaneous analysis of three-carbamate pesticides, carbaryl, propoxur, and carbosulfan. The method is based on reaction of the pesticides with p -aminoacetanilide in alkaline
Publikováno v:
Journal of Analytical Chemistry. 64:386-389
An analytical method employing a combination of solid phase extraction and spectrophotometry is proposed for the determination of a widely used herbicide atrazine. This combination is very simple and cheaper than chromatography and mass spectrometry
Publikováno v:
Journal of the Chinese Chemical Society. 51:195-198
A highly sensitive spectrophotometric method for the determination of nitrite in water and soil has been developed. The reaction of nitrite with acidified potassium iodide to liberate iodine which oxidizes leucocrystal violet (LCV) to form crystal vi