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Heavy metals and hardened arteries

Date: Apr 15, 2010

Author: David Bradley

The way in which arterial plaques form, atherogenesis, is not yet completely understood despite a significant number of research studies in this area. Now, a study using rabbits on a high-fat diet (HFD) has investigated the effects of changes in the concentrations of trace elements., iron (Fe), copper (Cu) and zinc (Zn), in several tissues using atomic absorption spectroscopy.

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Aqua regia extractable selenium concentrations of some Scottish topsoils measured by ICP-MS and the relationship with mineral and organic soil components

Date: Apr 5, 2010

Author:

To provide information concerning the geographical distribution of selenium in the soils of Scotland, 47 arable soils selected on the basis of their parent rock were analysed by ICP-MS.

Read More thumbnail image: Aqua regia extractable selenium concentrations of some Scottish topsoils measured by ICP-MS and the relationship with mineral and organic soil components

Antimony analysed

Date: Mar 15, 2010

Author: David Bradley

A simple, yet sensitive, method for detecting inorganic antimony in food packaging has been developed using cloud point extraction combined with electrothermal atomic absorption spectrometry (ETAAS).

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Dual-column capillary microextraction combined with ETV-ICP-MS for the speciation of arsenic in human hair extracts

Date: Mar 1, 2010

Author:

A dual-column capillary microextraction was developed for the sequential separation/preconcentration of arsenite, arsenate, monomethylarsonic acid and dimethylarsinic acid in extracts of human hair followed by electrothermal vaporization inductively coupled plasma mass spectrometry detection with iridium as permanent modifier.

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Atomic biodiesel assessment

Date: Feb 15, 2010

Author: David Bradley

Flame atomic absorption spectrometry (FAAS) can be used effectively as an alternative method for the determination of calcium and magnesium ions in biodiesel and fuels derived from vegetable oil, according to researchers in Brazil. The technique precludes certain preparative steps and avoids the need for some toxic organic solvents.

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Whole blood manganese concentrations in dogs with congenital portosystemic shunts

Date: Feb 1, 2010

Author:

Whole blood manganese was measured in eighteen dogs with congenital portosystemic shunts, 26 dogs with nonhepatic illnesses, and 14 healthy dogs by graphite furnace atomic absorption spectrometry.

Read More thumbnail image: Whole blood manganese concentrations in dogs with congenital portosystemic shunts

Heavy metal in urban wetlands

Date: Jan 15, 2010

Author: David Bradley

A study of metal contaminants in urban lakes in India using atomic absorption spectroscopy reveals that mitigation actions aimed at removing the pollution may not be a long-term remedy for the problem.

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Quadrupole ICP-MS: Introduction to instrumentation, measurement techniques and analytical capabilities

Date: Jan 4, 2010

Author:

This back-to-basics review is aimed at the novice user and includes a guide to ICP-MS instrumentation and performance.

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Medical fly guys

Date: Dec 15, 2009

Author: David Bradley

Inductively coupled plasma-optical emission spectroscopy and X-ray fluorescence have been used to investigate the content of incinerated medical waste fly ash revealing important details about elemental concentrations in this problematic waste.

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Differentiation of eight tea (Camellia sinensis) cultivars in China by elemental fingerprint of their leaves

Date: Dec 2, 2009

Author:

Elemental fingerprint techniques, based on elemental contents determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) and multivariate statistical analysis, have been used to differentiate eight tea cultivars.

Read More thumbnail image: Differentiation of eight tea Camellia sinensis cultivars in China by elemental fingerprint of their leaves
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