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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.

Read More thumbnail image: Validity of methyl mercury hair analysis mercury monitoring in human scalpnude mouse model

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.

Read More thumbnail image: Speciation of inorganic tellurium from seawater by ICP-MS following magnetic SPE separation and preconcentration

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.

Read More thumbnail image: Quantification issues of trace metals on silicon oxide and nitride films by VPD-ICP-MS and VPD-GF-AAS

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.

Read More thumbnail image: Determination of lead iron and nickel in water and vegetables after pre-concentration with Aspergillus niger on silica
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