Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Michal Galik"'
Publikováno v:
Electroanalysis. 23:1193-1204
While cathodic voltammetric measurements based on the reduction of nitro-containing explosive compounds have been well documented, little attention has been given for exploiting their anodic response, associated with the oxidation of their reaction p
Autor:
Gabriela Valdés Ramírez, Padmanabhan Santhosh, Michal Galik, Tzu-Yang Chou, Joshua Ray Windmiller, Joseph Wang, Min-Chieh Chuang
Publikováno v:
Electroanalysis. 22:2511-2518
This study examines the influence of textile substrates upon the behavior of wearable screen-printed electrodes and demonstrates the attractive sensing properties of these sensors towards the detection of nitroaromatic explosives. Compared to electro
Publikováno v:
Electroanalysis. 22:1733-1736
At a mercury electrode, Hcy and Cys yield similar cathodic stripping peaks connected to the reduction of the pertinent mercury thiolate. However, due the different behavior as a ligand for nickel ion, the above compounds perform very differently in t
Autor:
Jie Wu, Chongdee Thammakhet, Joseph Wang, David A. Haake, Michal Galik, Karin Y. Chumbimuni-Torres
Publikováno v:
Analytical Chemistry. 81:10007-10012
Here, we report on a highly sensitive potentiometric detection of DNA hybridization. The new assay uses a low-volume solid-contact silver ion-selective electrode (Ag(+)-ISE) to monitor the depletion of silver ions induced by the biocatalytic reaction
Publikováno v:
Electroanalysis. 21:332-341
A mercury sulfide layer was prepared at the surface of a mercury electrode by an anodic reaction (+0.1 V vs. Ag|AgCl|KCl(3 M)) in the presence of thiourea at the micromolar concentration level. Electrochemical reactions of mercury sulfide were invest
Publikováno v:
Electroanalysis. 21:130-137
Homocysteine (Hcy) and cysteine (Cys) mercury thiolate layers were prepared by anodic polarization of a mercury electrode in amino acid containing solutions and then investigated in the cathodic regime in the presence of Ni2+ or Co2+ ions. The sulfhy
Publikováno v:
Talanta. 72:512-518
In this contribution, a novel method is described for the determination of platinum metals. The procedure developed employs a carbon paste electrode modified in situ with cationic surfactants of the quaternary ammonium salt type. The pre-concentratio
Publikováno v:
Electroanalysis. 18:2218-2224
This article deals with the development of a method for the determination of osmium at a carbon paste electrode (CPE) modified with cationic surfactants of the quaternary ammonium salt type; namely, cetyltrimethylammonium bromide (CTAB) and 1-(ethoxy
Publikováno v:
The Analyst. 137(14)
The simultaneous electrochemical measurement of heavy-metal and organic propellants relevant to gunshot residues (GSRs) is demonstrated. Cyclic voltammetry (CV) and cyclic square-wave stripping voltammetry (C-SWV) are shown to detect, in a single run
Autor:
Nongjian Tao, Ray Tsui, Andreas Spanias, Narayan Kovvali, Douglas Cochran, Avi Cagan, Alvaro Diaz, Joseph Wang, Michal Galik, Karel Cizek, Chad Prior, Erica Forzani
Publikováno v:
ICASSP
The effective and reliable detection of explosive compounds in complex environments is an important problem in many environment and security-related applications. This paper develops an explosive detection approach based on multi-modal sensing and se