atomic absorption spectrophotometer Articles
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Determination of Trace Lead, Poly-Phenols and Tannins in Wines Using a Single Analytical Instrument
The manufacturing of wine and other fermented beverages has typically been a fairly simple process. Historically, the expertise of the sage wine-master was used to gauge the quality of the product. Today, many environmental concerns, health factors, and government rules, prompt the producers of fine wines to monitor several important components in the grape, the fermentation vats, and in ...
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Sample Preparation of Glass and Ceramic Materials for Atomic Absorption Analysis
The analysis of silicate-based glass and ceramics has always been a moderately difficult job, since the components that comprise the glass are usually not stable together in solution. For example, most typical acidic digestions that solubilize silicon will cause calcium fluoride to precipitate. If no fluoride is present, the silicon will not be fully decomposed, and if the solution is ...
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Measurement of Cesium in Tap Water and Soil by Atomic Absorption Spectrometry
Recently, technologies that can efficiently remove radioactive cesium (chiefly Cs-137) from water and soil have been actively researched. The study and evaluation of these removal technologies can be conducted using Cs-133, an easy-to-handle, stable substance, yet chemically similar to Cs-137. Cesium can be analyzed using atomic absorption spectrometry and ICP emission spectroscopy, which are ...
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Utilisation of eggshell membrane as an adsorbent for carbon dioxide
Carbon dioxide (CO2) is a major greenhouse gas responsible for global warming. This work aims to explore a cheap and easy way for CO2 adsorption from the atmosphere, by using an eggshell membrane. Eggshell membrane could be used up to four times with intermediate regeneration with acetic acid solution. Atomic absorption spectrophotometer (AAS) analysed the amount of CO2 adsorbed as equivalent ...
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Plasma levels of copper, iron and zinc in healthy primary school children from rural communities of Ebonyi State, South Eastern Nigeria
Plasma copper, iron and zinc were determined in 295 primary school children; mean age = 8.81 ± 2.07 years from rural communities in Ebonyi State, Southeastern Nigeria using atomic absorption spectrophotometers. Copper and zinc deficiencies were found in 4.1% and 6.1% respectively while inadequate plasma iron and anaemia were found in 21.4% and 20%, respectively. Significantly, higher prevalence ...
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Determination of toxic heavy metals in sea water by FAAS after preconcentration with a novel chelating resin
A solid phase extraction procedure was developed for preconcentration of toxic heavy metals such as cadmium, cobalt, copper, manganese, lead and zinc in sea water samples. A microcolumn packed with 6-[(4-hydroxyphenyl)diazenyl]naphthalene-2,3-diol-formaldehyde (HPDN-F) resin acts as a sorbent to retain the analyte ions by forming metal chelates. The retained trace level metal was subsequently ...
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Lead and cadmium exposure in children living around a coal-mining area in Yataan, Turkey
The study was designed to determine asymptomatic lead poisoning prevalence and cadmium exposure of preschool children living in a coal-mining area in Yataan, Mugla, Turkey. The research was conducted between May and June 2002. The study included 236 children (53.4% female and 46.6% male) who were identified among the healthy children between the ages of 6 months and 6 years, using a systematic ...
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Pollution of south of Tehran ground waters with heavy metals
Abstract: The reuse of nutrients and organic matter in wastewater sludge via on agricultural lands application is a desirable goal. However, trace or heavy metals present in sludge pose the risk of human or phytotoxicity from land application. The aim of this research is possibility of ground water pollution of south of Tehran because of ten years irrigation with Ni, Cd and Pb borne waste water. ...
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Evaluating the effects of septic tank on shallow wells in Iba housing estate, Ojo LGA, Lagos
Water samples from 30 shallow wells were measured for depth, depth to water table, and distance to septic tank. In situ parameters including electrical conductivity, pH, total dissolved solids, and temperature were measured using portable meters. Chemical parameters including salinity, chloride, calcium, alkalinity and total hardness were determined using titrimetry method. Sulphate and nitrate ...
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Characterization of ambient aerosols in Northern Thailand and their probable sources
The present study examines variation of ambient aerosol mass and number concentrations in Chiang Mai, Thailand during winter. Aerosol particle samples were collected and measured at four different sites, representative of urban, industrial, residential and rural areas during daytime between December 2003 and January 2004. Average 10 h particulate matter (PM) mass concentrations were found to be ...
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