This study targets the lesser-known ingredients of smokeless tobacco products, i.e., the toxic metals, in Indian brands. The metals selected in the study included lead (Pb), cadmium (Cd), arsenic (As), copper (Cu), mercury (Hg), and selenium (Se). The differential pulse anodic stripping voltammetry (DPASV) technique was used for estimating the metals Pb, Cd, and Cu; square wave voltammetry for ...

Copper and arsenic have been analysed in refined beet sugar at the microgram kg-1 level by anodic stripping voltammetry (copper) and cathodic stripping voltammetry (arsenic) in the differential-pulse mode (DPASV and DPCSV) at a hanging mercury drop electrode (HMDE). DPCSV measurements of arsenic are based on its accumulation onto the HMDE as an intermetallic Cu-As compound followed by the reduc...

In this study, bioaccumulation of lead, copper, cadmium, zinc and mercury in gill, liver and muscle of Acanthopagrus latus (Yellowfin seabream) was quantified. The concentrations of heavy metals were determined by using differential pulse anodic stripping voltammetry (DPASV) after wet digestion method. The result comprise of concentration level of Cu2+, Cd2+, Zn2+, Pb2+ and Hg2+ in ten differen...

Benzimidazole-functionalized polyaniline (BMPANI) was synthesized by interfacial poly­merization technique and used for electrochemical sensing of cadmium ions in an aqueous solution. The material characterized its structural morphological features using Fourier-transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), scanning electron microscopy (SEM). BMPANI has a micro-shell struc...

In this study, the preservation of As(III) in model solutions and natural groundwater samples from four locations Croatia was conducted. Model laboratory were spiked with As(V), different complexing agents. Solutions analysed intervals 24, 48 h during ten days after preparation. containing citric acid, sodium citrate, oxalate potassium tartrate combination acetic As(III)and showed good species ...

Thallium (Tl) is a rare metal with toxic effects notably harmful to human health and the environment. In this article, natural occurrence of Tl was evaluated in deactivated manganese mine located Western region Bahia, Brazil. The extraction procedure aqua regia used dissolve soil, sediment, tailings samples. content determined by differential pulse anodic stripping voltammetry (DPASV) (Mn) iron...

The purpose of this study was to develop an inexpensive, simple, and highly selective cork-modified carbon paste electrode for the determination Pb(II) by differential pulse anodic stripping voltammetry (DPASV) square-wave (SWASV). Among cork–graphite electrodes investigated, one containing 70% w/w showed highest sensitivity in aqueous solutions. Under SWASV conditions, its linear range relativ...

Lead, a toxic heavy metal, is considered one of the most serious pollutants in water environment, posing grave threat to human health and global ecosystem. In this work, simple, fast sensitive sensor strategy for detecting trace lead ions (Pb2+) was proposed. The disposable electrochemical fabricated with screen-printed carbon electrode (SPCE), working modified single step situ polymerized phyt...

Electrochemical analysis based on screen-printed electrodes (SPEs) represents a great alternative to conventional analytical methods such as ICP-MS or LC-MS due their portability, sensitivity, selectivity, and cost-effectiveness. In addition, the functionalization of SPEs with nanomaterials has been reported provide an enhanced performance. this regard, silver nanoparticles (AgNPs) were synthes...