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Cannabis blow back

Date: Jun 15, 2009

Author: David Bradley

Using a highly sensitive new test (online column-switching valve liquid chromatography tandem mass spectrometry (LC-MS/MS) selected reaction monitoring (SRM) method), European scientists have found "convincing evidence" that marijuana smoke damages DNA in ways that could increase the risk of cancer.

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Elemental content in brown rice by ICP-AES reveals the evolution of Asian cultivated rice

Date: Jun 1, 2009

Author:

The phylogenetic relationship for classification traits and eight mineral elements in brown rice (Oryza sativa L.) from Yunnan Province in China was carried out using microwave assisted digestion followed by inductively coupled plasma atomic emission spectroscopy

Read More thumbnail image: Elemental content in brown rice by ICP-AES reveals the evolution of Asian cultivated rice

Ionic liquid boost for AAS

Date: May 15, 2009

Author: David Bradley

Researchers in Argentina have used room temperature ionic liquids (RTILs) as an online pre-concentration medium for flame atomic absorption spectrometry analysis of trace cadmium in plastic food packaging materials.

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A spectroscopic approach to assess trace-heavy metal contents in contaminated floodplain soils via spectrally active soil components

Date: May 4, 2009

Author:

Soil samples from grassland plots in the Hase floodplain near Osnabruck were analyzed using visible and near-infrared laboratory spectroscopy paralleled by atomic-absorption spectrometry, automated combustion for Corg quantification, and texture analysis.

Read More thumbnail image: A spectroscopic approach to assess trace-heavy metal contents in contaminated floodplain soils via spectrally active soil components

Tyson's toxic technique

Date: Apr 15, 2009

Author: David Bradley

The first accurate test for arsenic compounds in contaminated soil has been developed by US chemists. Their atomic emission approach to the problem could provide improved environmental and health assessments of contaminated sites.

Read More thumbnail image: Tysons toxic technique

The impact of fluoridated milks on the availability of trace elements in milk

Date: Apr 6, 2009

Author:

In vitro simulated gastrointestinal digestion with enzymatic steps was used to measure and compare the availability of trace Fe, Zn, Cu, Cr, Mo and Se, measured by ICP-MS, in pasteurised skimmed (0.3% fat) and whole (4% fat) milk with different fluoride concentrations and in non-F and F UHT-processed 4% fat milks.

Read More thumbnail image: The impact of fluoridated milks on the availability of trace elements in milk

Atomic cyst assistance

Date: Mar 15, 2009

Author: David Bradley

Researchers in Turkey are using atomic absorption spectroscopy to analyse the levels metal ions and phosphorus in samples of fluid from breast cyst. They have observed a marked difference between the ratios of ions in the two main types of cyst one of which is more closely associated with the development of breast cancer.

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Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Date: Mar 2, 2009

Author:

Stable H, C and O isotope analyses on carbonate and inclusion water have been combined with multicollector ICP-MS age dating and laser-ablation ICP-MS trace element analyses on a stalagmite from southern Hungary to reveal traces of volcanic dust from a Bronze Age eruption several thousand kilometers away.

Read More thumbnail image: Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Magnetic drug delivery for Alzheimer's disease

Date: Feb 15, 2009

Author: David Bradley

Atomic absorption spectroscopy has been used to characterise the magnetite incorporated into chitosan microparticles that can act as delivery agents for the Alzheimer's drug tacrine. Tacrine has notoriously low oral bioavailability and unclear efficacy but this delivery approach boosts uptake.

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Mercury speciation by CE: An update

Date: Feb 2, 2009

Author:

The speciation of mercury by CE has been reviewed, including hyphenation to element specific detectors (electrothermal atomic absorption spectrometry, atomic fluorescence spectrometry, inductively coupled plasma-optical emission spectrometry, inductively coupled plasma-mass spectrometry).

Read More thumbnail image: Mercury speciation by CE An update
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