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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

Pharmaceutical toxicity: AAS and other techniques measure pharma heavy metal

Date: May 15, 2011

Author: David Bradley

Metals and metalloid impurities are an increasing focus for pharmaceutical regulators anticipating high standards of QC/QA for pharmaceuticals. A review by a team at Bristol-Myers Squibb assesses the various techniques available to the industry. The report offers insights into how these various applications can be used and ultimately how they might address concerns about metal toxicity in raw materials, intermediates, active pharmaceutical ingredients and final drug products.

Read More thumbnail image: Pharmaceutical toxicity AAS and other techniques measure pharma heavy metal

Journal Highlight: Sputum zinc concentration and clinical outcome in older asthmatics

Date: May 2, 2011

Author:

Labile and total zinc were measured in sputum and plasma of subjects with or without asthma and correlated with symptoms, asthma severity, lung function and airway hyper-responsiveness.

Read More thumbnail image: Journal Highlight Sputum zinc concentration and clinical outcome in older asthmatics

Explosive fingerprints: spectroscopy IDs TNT in dabs

Date: Apr 15, 2011

Author: David Bradley

Optical catapulting-laser-induced breakdown spectroscopy has been used to successfully detect residues of common explosives in human fingerprints, according to researchers from Egypt and Spain.

Read More thumbnail image: Explosive fingerprints spectroscopy IDs TNT in dabs

Journal Highlight: Traceability along the production chain of Italian tomato products on the basis of stable isotopes and mineral composition

Date: Apr 4, 2011

Author:

The variability of stable isotope ratios and mineral composition in tomato and derivatives was determined along the production chain (juice, passata and paste) in order to evaluate the possibility of tracing their geographical origin.

Read More thumbnail image: Journal Highlight Traceability along the production chain of Italian tomato products on the basis of stable isotopes and mineral composition

Waste water slip up: AAS assesses efficacy of banana peel remediation

Date: Mar 15, 2011

Author: David Bradley

Atomic absorption spectroscopy is being used to assess how well banana peel can filter heavy metals, such as copper, from waste water. Preliminary results look promising and could lead to an ecologically sound method of industrial cleanup that uses a renewable but otherwise wasted source material.

Read More thumbnail image: Waste water slip up AAS assesses efficacy of banana peel remediation

Journal Highlight: Application of three spectrometric methods to total selenium determination in postmortem material in a case of acute selenium compound poisoning

Date: Mar 7, 2011

Author:

Atomic absorption spectrometry with electrothermal atomization, atomic fluorescence spectrometry with hydride generation and spectrofluorimetry were used for the determination of total selenium in postmortem biological samples in a case of acute selenium compound poisoning.

Read More thumbnail image: Journal Highlight Application of three spectrometric methods to total selenium determination in postmortem material in a case of acute selenium compound poisoning

Chemistry in the greenhouse: CO2 conversion

Date: Feb 15, 2011

Author: David Bradley

Technologies that can use carbon dioxide as a chemical feedstock are high on the agenda in the face of rising atmospheric levels of the greenhouse gas. A novel iron-based catalytic process studied using inductively coupled plasma (ICP) atomic emission spectrometry shows how carbon dioxide can be converted into the industrially useful formic acid at an 80% yield.

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Journal Highlight: The development of analytical and interpretational protocols to facilitate the provenance establishment of polycarbonate headlamp lens material

Date: Jan 31, 2011

Author:

In this study, laser ablation inductively coupled plasma mass spectrometry has been applied to the analysis of polycarbonate headlamp lenses with multivariate chemometrics techniques utilized to facilitate interpretation of the data.

Read More thumbnail image: Journal Highlight The development of analytical and interpretational protocols to facilitate the provenance establishment of polycarbonate headlamp lens material
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