نتایج جستجو برای: voltammetric determination

تعداد نتایج: 252995  

2004
Jorge M. P. J. Garrido Cristina Delerue-Matos Fernanda Borges Tice R. A. Macedo A. M. Oliveira-Brett

The analysis of opiates is of vital interest in drug abuse monitoring and research. This review presents a general overview of the electrochemical methods used for detection and quantification of opiates in a variety of matrices. Emphasis has been placed on the voltammetric methods used for study and determination of morphine, codeine, and heroin. Specific issues that need to be solved and bett...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2006
Wei Sun Jiayu You Xuan Hu Kui Jiao

A novel voltammetric method for the determination of microamounts of fish sperm double-stranded (ds) DNA based on its interaction with phenosafranine (PSF) is proposed in this paper. In a pH 3.5 Britton-Robinson (B-R) buffer solution, PSF had a well-defined second-order derivative linear-sweep voltammetric reductive peak at -0.32 V (vs. SCE) on a mercury electrode. After the addition of dsDNA i...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2003
mohammad hossein pournaghi-azar hossein nahalparvary

the voltammetric characteristics of mo (vi) oxinate at the mercury electrode, in the presence of tri-butylammonium perchlorate (tri-bap) and piperidinium perchlorate (pp) + piperidine (p) as  two different types supporting electrolytes, have been studied in chloroform. with the both supporting electrolytes a two electron irreversible process for the reduction  of mo (vi) oxinate was observed. p...

Journal: :Chemical communications 2015
Jaesung Lee Jandee Kim Hyeran Kim Choong Kyun Rhee Myung-Hwan Whangbo

Solution phase post-modification of a trimesic acid (TMA) network on Au(111) with Zn(2+) ions was found to induce transformation of a bar-featured scanning tunneling microscopy image of (5√3 × 5√3) to a chevron-pair image of (10√3 × 10√3). Voltammetric determination of Zn coverage in the modified TMA network supports the fact that the chevron feature consists of three TMA molecules combined via...

2013
Helena VESELÁ Emanuel ŠUCMAN

Veselá H., Šucman E. (2013): Determination of acrylamide in food using adsorption stripping voltammetry. Czech J. Food Sci., 31: 401–406. A new electroanalytical method for the determination of acrylamide in food has been developed. It was found that a complex of acrylamide and Ni2+ is suitable for the electrochemical determination of acrylamide. Ammonia buffer of pH = 9.5 was found to provide ...

Journal: :Journal of Analytical Methods in Chemistry 2018

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