Results 1 to 10 of about 1,855 (115)

Kinetic determination of As(III) in solution [PDF]

Journal of the Serbian Chemical Society, 2003
A new reaction is suggested and a new kinetic method is elaborated for the As(HI) traces determination in solution, on the basis of their catalyzing effect on komplexon III (EDTA) oxidation by KMnO4 in a strong acid solution (H2SO4).
Rančić Sofija M., Igov Rangel P., Pecev Todor G.   +2 more
doaj   +4 more sources

Kinetic determination of ultramicro amounts of As(III) in solution [PDF]

Journal of the Serbian Chemical Society, 2003
A new catalytic reaction is proposed and a kinetic method developed for the determination of ultramicro amounts of As(III) on the basis of its catalytic activity in the oxidation of ethylenediamine-N,N’-diacetic-N,N’ dipropionic acid (EAP) by KMnO4 in ...
Igov Aleksandar R., Simonović Ranko M., Igov Rangel P.   +2 more
doaj   +3 more sources

Glassy carbon electrode modified with ex-in-situ gold film – A simple and effective working electrode for As(III) determination by using differential pulse anodic stripping voltammetry

Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2021
An easy-to-make new working electrode, an ex-in-situ AuF/GCE, was developed for trace As(III) detection. A gold film electrode prepared ex-situ was re-plated in-situ during each arsenic deposition step by adding Au(III) into the analyte solution.
Hoang Thai Long, Thi Kim Dung Le
doaj   +1 more source

In Situ Deposition of Gold Nanoparticles and L-Cysteine on Screen-Printed Carbon Electrode for Rapid Electrochemical Determination of As(III) in Water and Tea

Biosensors, 2023
In this study, a screen-printed carbon electrode (SPCE) based on in situ deposition modification was developed for the sensitive, rapid, easy and convenient determination of As(III) in water and tea by linear sweep anodic stripping voltammetry (LSASV ...
Wenjing Wang, Zhijian Yi, Qiongxin Liang, Junjie Zhen, Rui Wang, Mei Li, Lingwen Zeng, Yongfang Li   +7 more
doaj   +1 more source

Hierarchical Ti-MOF Microflowers for Synchronous Removal and Fluorescent Detection of Aluminum Ions

Biosensors, 2022
Bifunctional luminescence metal-organic frameworks with unique nanostructures have drawn ongoing attention for simultaneous determination and elimination of metal ions in the aqueous environment, but still remain a great challenge.
Jianguo Zhou, Jieyao Song, Guangqiang Ma, Yongjian Li, Yanan Wei, Fei Liu, Hongjian Zhou   +6 more
doaj   +1 more source

Determination of As(III) and As(V) in waters by chronopotentiometric stripping analysis [PDF]

Acta Periodica Technologica, 2006
Arsenic is a naturally occurring toxic and carcinogenic element. The degree of the toxicity depends on its chemical form and the concentration. Application of a sensitive, selective, simple and rapid method for detection and monitoring of different ...
Švarc-Gajić Jaroslava V., Suturović Zvonimir J., Marjanović Nikola J., Kravić Snežana Ž.   +3 more
doaj   +1 more source

Speciation Analysis of Arsenic in Copper Electrolyte Baths Using Liquid-liquid Extraction and ICP-OES Method Detection [PDF]

Archives of Metallurgy and Materials, 2022
The present study describes a method for the determination of As (III) and As (V) in copper electrolytes. The method is based on the separation of As (III) from a copper electrolyte by triple liquid-liquid extraction using a non-polar organic solvent in ...
E. Stefanov, S. Georgieva
doaj   +1 more source

Spectrophotometric determination of bismuth (III) via pyrocatecol violet dye as chromogenic reagent [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2019
Direct, rapid, simple, precise and an accurate spectrophotometric method for the estimation of bismuth (III) ion was proposed. The reaction of bismuth (III) ion with pyrocatecol violet in aqueous solution in the presence of cetyl trimethyl ammonium ...
Enas S. Thanoon, Khalida M. Omer
doaj   +1 more source

Spectrophotometric determination of trace iron(III) in natural water after its preconcentration with a chelating resin [PDF]

Journal of the Serbian Chemical Society, 2002
A method for the determination of Fe(III) at trace levels is described. Thus prior to the spectrophotometric determination, a preconcentration of the trace amounts of iron(III) using a chelate forming resin is proposed. A strong base anion-exchange resin
Moldovan Zenovia, Neagu Eleonora-Ana
doaj   +3 more sources

Electrochemical Detection of As(III) Ions in Hot Spring Water Based on a SiO2-Au Nanocomposite

International Journal of Electrochemical Science, 2017
I In this report, a SiO2-Au nanohybrid was prepared for the detection of As(III) ions using an electrochemical strategy. The morphology and properties of the SiO2-Au nanohybrid were characterized and analyzed via multiple techniques.
Feng Sun, Guojing Fan
doaj   +1 more source