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Journal Highlight: Determination of cadmium and lead in human teeth samples using dispersive liquid-liquid microextraction and GFAAS

Date: Jan 9, 2012

Author:

A new method for the determination of cadmium and lead in human teeth was developed based on dispersive liquid-liquid microextraction preconcentration and graphite furnace atomic absorption spectrometry determination, using O,O-diethyldithiophosphate as a chelating agent.

Read More thumbnail image: Journal Highlight Determination of cadmium and lead in human teeth samples using dispersive liquid-liquid microextraction and GFAAS

Journal Highlight: Determination of trace nickel in hydrogenated cottonseed oil by ETAAS after microwave-assisted digestion

Date: Jan 9, 2012

Author:

A combination of microwave digestion and electrothermal atomic absorption spectrometry is proposed for the first time for the determination of trace nickel in hydrogenated cottonseed oil.

Read More thumbnail image: Journal Highlight Determination of trace nickel in hydrogenated cottonseed oil by ETAAS after microwave-assisted digestion

Gold nanorods: Non-toxic coating aids anticancer agents

Date: Dec 15, 2011

Author: David Bradley

Inductively coupled plasma-optical emission spectrometry (ICP-OES) has been used in a study of coated gold nanorods that have potential as anticancer agents.

Read More thumbnail image: Gold nanorods Non-toxic coating aids anticancer agents

Journal Highlight: Chemical characterization of carbonated natural mineral waters produced in Turkey: Compliance with European water quality standards

Date: Dec 5, 2011

Author:

A total of 100 samples from 25 brands of carbonated natural mineral waters produced in Turkey were analyzed for 36 water quality constituents, including 25 major/trace elements by ICP MS, to determine their suitability for human consumption.

Read More thumbnail image: Journal Highlight Chemical characterization of carbonated natural mineral waters produced in Turkey Compliance with European water quality standards

Tracing boron: Essential safety levels

Date: Nov 15, 2011

Author: David Bradley

Boron is an essential trace element in many living things but as yet we do not know what the normal levels of this substance are in humans. A study in Chile, where natural boron levels are relatively high, measured exposure levels of boron in drinking water and urine of volunteers using inductively coupled plasma spectroscopy (ICP-OES).

Read More thumbnail image: Tracing boron Essential safety levels

Journal Highlight: Hair lead levels to evaluate the subclinical impact of lead on growth in Sardinian children (Italy)

Date: Oct 31, 2011

Author:

A study of the relationship between lead levels in children's hair measured by ICP-AES, ICP-AAS and ICPMS and their height, sitting height, and estimated leg length supports the use of lead as a biomarker to assess the impact of subclinical lead on the physical growth of children.

Read More thumbnail image: Journal Highlight Hair lead levels to evaluate the subclinical impact of lead on growth in Sardinian children Italy

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
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