Atomic / Ezine
Oil from old computers
Date: May 15, 2008
Author: David Bradley
Printed circuit boards from old computers and other electronic equipment could provide a new hydrocarbon feedstock for the petrochemical industry, according to European researchers.
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Validity of methyl mercury hair analysis: mercury monitoring in human scalp/nude mouse model
Date: May 10, 2008
Author:
The grafting of human scalp hair was used as a new application of this method to explore methyl mercury incorporation into human hair and to validate this model for mercury monitoring in hair.
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Heavy metal and cancer
Date: Apr 15, 2008
Author: David Bradley
Atomic absorption spectroscopy (AAS) has been used to reveal an appreciable difference in the pattern of metal ions distributed throughout the blood plasma of cancer patients compared with healthy volunteers.
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Speciation of inorganic tellurium from seawater by ICP-MS following magnetic SPE separation and preconcentration
Date: Apr 7, 2008
Author:
A new method was developed for the speciation of inorganic tellurium species in seawater by inductively coupled plasma-MS following selective magnetic SPE separation using modified silica-coated magnetic nanoparticles.
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Soft test for hard water
Date: Mar 15, 2008
Author: David Bradley
An inexpensive, reusable, and portable hard water sensor based on a fluorescing strand of DNA could be possible thanks to research in Spain. The technology compares well in accuracy with complexiometric titration and atomic absorption spectroscopy but with none of their limitations.
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The application of ICP MS in clinical pharmacological oncology research
Date: Mar 3, 2008
Author:
A systematic review is given of publications on the analysis of platinum- and ruthenium-containing anticancer agents using ICP-MS, focused on the determination of total metal concentrations and the speciation of metal compounds in biological fluids, DNA- and protein-adducts, and environmental samples.
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Fibre, fibre burning bright
Date: Feb 15, 2008
Author: David Bradley
A European research team has developed novel strategies for the rapid trace element analysis of metals in polyamide synthetic fibres by graphite furnace atomic absorption spectrometry and inductively coupled plasma mass spectrometry. Their method allows the accurate determination for quality control of polyamide products containing titanium dioxide as an optical brightener.
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Quantification issues of trace metals on silicon oxide and nitride films by VPD-ICP-MS and VPD-GF-AAS
Date: Feb 4, 2008
Author:
This article discusses the approaches to eliminate interferences caused by the silicon matrix during vapor-phase decomposition pretreatment for collecting trace metal contaminants on the surface of a silicon wafer.
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Running up against the buffers
Date: Jan 15, 2008
Author: David Bradley
US researchers have developed a simple solution to the problem of buffer failure, a chemical conundrum that has plagued researchers in laboratories across the world for decades. Their new approach takes an apparently obviuous tack that apparently no one has thought obvious enough to try before.
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Determination of lead, iron and nickel in water and vegetables after pre-concentration with Aspergillus niger on silica
Date: Jan 7, 2008
Author:
A method for the determination of Fe(III), Pb(II), and Ni(II) by flame atomic absorption spectrometry (FAAS) after preconcentrating on a column containing Aspergillus niger loaded on silica gel 60 (Biosorbent) is described.
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