Response surface methodology (RSM) as a tool for optimization in analytical chemistry

MA Bezerra, RE Santelli, EP Oliveira, LS Villar… - Talanta, 2008 - Elsevier
A review about the application of response surface methodology (RSM) in the optimization
of analytical methods is presented. The theoretical principles of RSM and steps for its …

Analytical methods for heavy metals in herbal medicines

X Yuan, RL Chapman, Z Wu - Phytochemical analysis, 2011 - Wiley Online Library
Introduction–It is estimated that about 70–80% of the world's population relies on non‐
conventional medicine, mainly of herbal origin. However, owing to the nature and sources of …

Dual colorimetric and fluorometric monitoring of Bi3+ ions in water using supermicroporous Zr-MOFs chemosensors

IM El-Sewify, MA Shenashen, A Shahat… - Journal of …, 2018 - Elsevier
We fabricated supermicroporous, switchable, colorimetric and fluorometric chemosensors
on a Zr-metal–organic framework platform. The chemosensors could be applied in the …

Development of a highly selective and sensitive electrochemical sensor for Bi3+ determination based on nano-structured bismuth-imprinted polymer modified carbon …

T Alizadeh, N Hamidi, MR Ganjali, P Nourozi - Sensors and Actuators B …, 2017 - Elsevier
A new nano-structured bismuth (III)-imprinted polymer was prepared by copolymerization of
Bi (III)-methylene succinate complex and ethylene glycol dimethacrylate in acetonitrile via …

Highly sensitive determination of trace copper in food by adsorptive stripping voltammetry in the presence of 1, 10-phenanthroline

S Chaiyo, O Chailapakul, T Sakai, N Teshima… - Talanta, 2013 - Elsevier
A highly sensitive, rapid, simple and selective adsorptive stripping assay for the
determination of trace copper (II) is proposed. The methodology is based on the adsorptive …

Determination of ultra trace levels of copper in food samples by a highly sensitive adsorptive stripping voltammetric method

S Abbasi, H Khani, R Tabaraki - Food chemistry, 2010 - Elsevier
A new method is presented, for the determination of copper, based on adsorptive stripping
voltammetry of the complex of copper with thiosemicarbazide at a hanging mercury drop …

How reliable are environmental data on 'orphan'elements? The case of bismuth concentrations in surface waters

M Filella - Journal of environmental monitoring, 2010 - pubs.rsc.org
Like all elements of the periodic table, bismuth is ubiquitously distributed throughout the
environment as a result of natural processes and human activities. It is present as Bi (III) in …

A hydrolytically stable hydrogen-bonded inorganic-organic network as a luminescence turn-on sensor for the detection of Bi3+ and Fe3+ cations in water

GQ Wang, XF Huang, CH Wu, Y Shen, SL Cai, J Fan… - Polyhedron, 2021 - Elsevier
Metal-organic materials capable of turn-on sensing of metal ions in water are highly
desirable but relatively infrequently reported. Herein, a hydrogen-bonded inorganic-organic …

Electrochemical determination of bismuth with use of a Bi (III)-cupferron complexation system and elimination of interferences connected with the presence of organic …

A Koper, M Grabarczyk - Journal of Electroanalytical Chemistry, 2011 - Elsevier
A sensitive and selective method for the determination of bismuth based on adsorptive
stripping voltammetry using cupferron as a complexing agent is presented. The effect of …

Simultaneous voltammetric determination of trace bismuth (III) and cadmium (II) in water samples by adsorptive stripping voltammetry in the presence of cupferron

A Koper, M Grabarczyk - Journal of Electroanalytical Chemistry, 2012 - Elsevier
Simultaneous adsorptive stripping voltammetric method for the determination of trace
bismuth (III) and cadmium (II) using cupferron as a complexing agent has been optimized …