Objective: To investigate and optimize the experiment conditions of determining lead and cadmium simultaneously with antimony film-plated glassy carbon electrode.
Methods: CTAB was used as sensitizer, and antimony film-plated glassy carbon electrode was prepared by in-situ plating for the determination of trace lead and cadmium by differential pulse stripping voltammetry.
Results: Under optimized conditions, well defined peaks of lead and cadmium were obtained at the potential of -0.48 V and -0.73 V respectively. Following a 180 s preconcentration, the stripping peak currents changed linearly with the concentration of lead and cadmium over the range from 0 to 100 μg/L (r ≥ 0.991). The detection limits of lead and cadmium were 0.47 μg/L and 0.78 μg/L. The average recoveries were 92.0% - 104.3% and 94.0% - 102.6% respectively, with the relative standard deviations no more than 6.1%. The method was applied to the determination of lead in urine, and the results were satisfactory.
Conclusion: The method has high sensitivity, good precision and accuracy. Antimony film electrode could be used for another new environment-friendly membrance electrode for determination of lead in human urine samples instead of mercury film electrode.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Toxic Trace Elements in Meat and Meat Products Across Asia: A Comprehensive Literature Review and Implications for Human Health.
Foods
December 2024
Laboratory of Toxicology and Environmental Health, School of Medicine, Universitat Rovira i Virgili, Sant Llorens 21, 43201 Reus, Catalonia, Spain.
Meat and meat products are vital sources of essential nutrients for human health and development. However, an excessive or inappropriate consumption can pose significant health risks. In 2015, the International Agency for Research on Cancer (IARC) classified red meat as "probably carcinogenic to humans" and processed meat as "carcinogenic to humans", yet the role of environmental contaminants in these products was not addressed.
View Article and Find Full Text PDFA Comparative Study on the Paradoxical Relationship Between Heavy Metal Exposure and Kidney Function.
Diagnostics (Basel)
January 2025
Department of Preventive Medicine, College of Medicine, Dong-A University, Busan 49201, Republic of Korea.
: Korea has higher levels of heavy metals compared to other countries, raising the need to study the health impacts on vulnerable populations. This study examined the effects of heavy metal exposure-lead, mercury, and cadmium-on kidney function in residents of environmentally vulnerable areas compared to the general population in Korea. : Epidemiological studies in vulnerable areas and official data from the Fourth Korean National Environmental Health Survey were analyzed to assess blood levels of lead and mercury and urinary cadmium.
View Article and Find Full Text PDFIn Situ Phytoremediation of Mine Tailings with High Concentrations of Cadmium and Lead Using (Sapindaceae).
Plants (Basel)
December 2024
Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, Mexico.
The waste generated during metal mining activities contains mixtures of heavy metals (HM) that are not biodegradable and can accumulate in the surrounding biota, increasing risk to human and environmental health. Plant species with the capacity to grow and develop on mine tailings can be used as a model system in phytoremediation studies. (L.
View Article and Find Full Text PDFUnveiling the Mineral and Sugar Richness of Moroccan Honeys: A Study of Botanical Origins and Quality Indicators.
Molecules
January 2025
Laboratory of Environment and Applied Chemistry (LCAE), Team: Physical Chemistry of the Natural Resources and Processes, Faculty of Sciences, Mohammed First University, Oujda 60000, Morocco.
This study comprehensively analyzes the mineral and heavy metal profiles of seven honey types, focusing on the contents of potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), cadmium (Cd), and lead (Pb), with particular emphasis on honey produced in eastern Morocco. Multifloral honey was found to have the highest total mineral content (661 mg/kg), while rosemary honey had the lowest (201.31 mg/kg), revealing the strong influence of floral and botanical origin.
View Article and Find Full Text PDFFood Safety: Pathological and Biochemical Responses of Nile Tilapia ( to Parasitological Infestation and Heavy Metals Pollution in Aquaculture System, Jeddah, Saudi Arabia.
Animals (Basel)
December 2024
Department of Zoology, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt.
Objective: The study aims to assess the overall safety of cultured tilapias in Jeddah City, Saudi Arabia by assessing the impact of infection and anthropogenic pollution on farmed tilapias based on fish sex, body weight, length, and heavy metals contamination.
Materials And Methods: A total of 111 fish were collected from an aquaculture farm in Hada Al-Sham, Jeddah, Saudi Arabia. Physicochemical parameters of water from the culture system were evaluated.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!