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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.

Read More thumbnail image: Fibre fibre burning bright

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

Composting with chitosan and cat litter composite

Date: Dec 15, 2007

Author: David Bradley

The viability of a novel slow-release system for a nitrogen-phosphorus-potassium (NPK) agricultural fertiliser has been tested using atomic absorption spectrometry and shown to have excellent release properties.

Read More thumbnail image: Composting with chitosan and cat litter composite

Comparison of artificial neural networks with PLS regression for simultaneous determinations by ICP-AES

Date: Dec 1, 2007

Author:

The simultaneous determination of several elements (U, Ta, Mn, Zr and W) by ICP-AES in the presence of spectral interference was performed using chemometrics methods, using a true comparison between artificial neural networks and partial least squares regression.

Read More thumbnail image: Comparison of artificial neural networks with PLS regression for simultaneous determinations by ICP-AES

Garlic protection

Date: Nov 15, 2007

Author: David Bradley

Atomic absorption spectroscopy has been used to analyse the distribution of lead and cadmium in different mouse organs including liver, kidney, spleen, heart, and blood, after treatment with different aqueous concentrations of garlic. The results suggest that garlic could help protect against organ damage caused by these toxic heavy metals.

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CZE for the speciation of arsenic in aqueous soil extracts

Date: Nov 1, 2007

Author:

Two separation methods using CZE with UV detection were developed for the determination of the most common inorganic and methylated arsenic species and some phenylarsenic compounds, based on hydrodynamic injection and large-volume sample stacking with polarity switching.

Read More thumbnail image: CZE for the speciation of arsenic in aqueous soil extracts

Stop! Atoms

Date: Oct 15, 2007

Author: David Bradley

An "atomic coilgun" that can stop atoms in their tracks using a sequence of pulsed magnetic fields has been developed by US scientists. The device opens up the possibility of slowing and trapping atoms regardless of atomic number, which is not possible with laser trapping that works only for certain atoms.

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