Atomic / Ezine
Lead in raw cow's milk by electrothermal atomic absorption spectrometry
Date: Oct 1, 2007
Author:
Lead in raw cow's milk has been determined by validated electrothermal atomic absorption spectrometry (ETAAS) with Zeeman-effect background correction.
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Copper blues and the toxic mouse trap
Date: Sep 15, 2007
Author: David Bradley
Atomic absorption spectroscopy of tissues from a mouse model of Wilson's disease has revealed that asymptomatic carriers are at increased susceptibility to copper overload when exposed to chronically high levels in their diet.
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Biomonitoring of heavy metals using Mytilus galloprovincialis in Moroccan coastal waters
Date: Sep 3, 2007
Author:
Heavy metal concentrations of mercury, cadmium, lead, zinc, cooper, nickel, manganese and chromium in Mytilus galloprovincialis were investigated to provide information on pollution of Safi coastal area, since these metals have the highest toxic potential.
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The pear necessities
Date: Aug 15, 2007
Author: David Bradley
The nopal cactus, commonly known as the prickly pear reveals itself as an important source of minerals in the diets of people in Mexico and the rest of Latin America, thanks to analyses with atomic spectroscopy and other techniques.
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The complementarity of LIBS and Raman microscopy for wall painting pigments analysis
Date: Aug 6, 2007
Author:
Laser-induced breakdown spectroscopy (LIBS) and Raman microscopy were used for the identification of pigments in wall painting. The behavior of pigments was studied after a LIBS analysis, by trying to identify the compounds before and after the laser shot.
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Leaden blood spot
Date: Jul 15, 2007
Author: David Bradley
A single drop of blood absorbed on to a filter paper is all that is needed for a new test for lead based on solid sampling-graphite furnace atomic absorption spectrometry (SS-GFAAS). The minimally-invasive method would allow many more people to be tested quickly for epidemiological studies and following safety incidents involving the toxic metal.
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Determination of 25 elements in lichens by sector field ICPMS and microwave-assisted acid digestion
Date: Jul 2, 2007
Author:
A simple and efficient digestion method for rapid sample preparation and quantification of 25 chemical elements in lichens by sector field inductively coupled plasma mass spectrometry is described, using microwave-assisted acid digestion at atmospheric pressure.
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On-chip atomic spectroscopy
Date: Jun 15, 2007
Author: David Bradley
Atomic spectroscopy can be performed with integrated optics on a chip for the first time, according to US researchers, who passed a beam of light through a rubidium vapor cell integrated into the chip.
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Preconcentration and determination of trace heavy metals in water using a membrane disk and FAAS
Date: Jun 4, 2007
Author:
A fast and simple method for preconcentrating heavy metal dications from natural waters for flame atomic absorption spectrometry has been successfully applied to the recovery and determination of heavy metal ions in different water samples.
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Heavy metal plants
Date: May 15, 2007
Author: David Bradley
Herbal medicine is a global phenomenon, a multibillion dollar industry, and its raw materials phytochemicals are widely used as the precursors for regulated pharmaceutical products. One problematic area on both sides is in product purity, with contamination by toxic heavy metals one of the most common complaints.
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