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Night blindness: FAAS offers mineral clues

Date: Oct 15, 2011

Author: David Bradley

Researchers have used flame atomic absorption spectroscopy to show that children who suffer night blindness are commonly deficient in several minerals but also have elevated sodium levels.

Read More thumbnail image: Night blindness FAAS offers mineral clues

Journal Highlight: Cannabis profiling based on its elemental composition - Is it possible?

Date: Oct 3, 2011

Author:

The elemental composition of 85 cannabis samples was established using GF AAS and ICP OES methods and a classification model was developed that correctly classified selected samples of known origin before being applied to siezed samples for origin assessment.

Read More thumbnail image: Journal Highlight Cannabis profiling based on its elemental composition - Is it possible

Heavy metal: Simultaneous detection, extraction

Date: Sep 15, 2011

Author: David Bradley

A novel approach to detection of toxic metal ions based on amino-functionalized gold nanoparticles not only provides analytical data on contaminated aqueous samples, but at the same time allows the ions to be extracted from the sample. Atomic absorption spectroscopy verifies the detection of heavy metals down to picomolar concentrations.

Read More thumbnail image: Heavy metal Simultaneous detection extraction

Journal Highlight: Prostate cancer outcome and tissue levels of metal ions

Date: Sep 5, 2011

Author:

ICP-MS was used for the quantification of Cd, Fe, Zn, and Se ions in prostatectomy samples, revealing an association between low Zn and low Fe prostate tissue levels and biochemical recurrence in prostate cancer.

Read More thumbnail image: Journal Highlight Prostate cancer outcome and tissue levels of metal ions

Snap happy: Digital camera to oust atomic spectrometer?

Date: Aug 15, 2011

Author: David Bradley

Researchers in Spain are hoping that a standard digital camera is the perfect alternative to expensive and sophisticated laboratory instrumentation for some analytical applications. They have demonstrated how it can be used to determined potassium and magnesium concentrations and water hardness and validated the results against conventional AAS measurements.

Read More thumbnail image: Snap happy Digital camera to oust atomic spectrometer

Journal Highlight: A novel alkali metals/strontium co-substituted calcium polyphosphate scaffolds in bone tissue engineering

Date: Aug 1, 2011

Author:

Potassium or sodium/strontium co-substituted calcium polyphosphate has been developed for use as a bone repairing scaffold in the orthopedic field, giving higher cell proliferation rates and good compress resistant strength.

Read More thumbnail image: Journal Highlight A novel alkali metalsstrontium co-substituted calcium polyphosphate scaffolds in bone tissue engineering

Down to earth: Nanotechnology turns the worm

Date: Jul 15, 2011

Author: David Bradley

Inductively coupled plasma atomic emission spectroscopy (ICP-AES) has been used in the testing of uptake and toxicity of titania nanoparticles in earthworms as a marker of potential ecological harm.

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Journal Highlight: Co and Cr accumulation in hair after metal-on-metal hip resurfacing arthroplasty

Date: Jul 4, 2011

Author:

Co and Cr levels in scalp hair have been measured by inductively coupled plasma-mass spectrometry as indicators for metal levels in the body after hip resurfacing arthroplasty (HRA). Both metals were greatly increased after metal-on-metal HRA.

Read More thumbnail image: Journal Highlight Co and Cr accumulation in hair after metal-on-metal hip resurfacing arthroplasty

Brazilian lead: Pewterware reveals illegal heavy metal

Date: Jun 15, 2011

Author: David Bradley

It is illegal to use lead as an additive in the manufacture of pewter kitchenware, tableware, drinking cups. However, work in Brazil using atomic absorption spectroscopy not only provides a benchmark for standardizing tests for lead, cadmium and other toxic metals, but reveals that some manufacturers are flouting the law.

Read More thumbnail image: Brazilian lead Pewterware reveals illegal heavy metal

Journal Highlight: Analytical methods for heavy metals in herbal medicines

Date: Jun 6, 2011

Author:

In this review, analytical methods for analysis of heavy metals in herbal medicines are discussed, including atomic absorption spectrometry, inductively coupled plasma optical emission spectrometry or mass spectrometry, X-ray fluorescence spectrometry, high-performance liquid chromatography, differential pulse polarography, neutron activation analysis and anodic stripping voltammetry.

Read More thumbnail image: Journal Highlight Analytical methods for heavy metals in herbal medicines
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