Atomic / Ezine
Graphene snapped: Laser spectroscopy freezes picosecond action
Date: Feb 15, 2012
Author: David Bradley
When graphene is stimulated optically it produces a photocurrent on a time scale of mere picoseconds. A German research team has now used the pump-probe method of time-resolved laser spectroscopy to take a snapshot of this process as it happens.
Read More
Biodiesel: Algae burn for you
Date: Jan 15, 2012
Author: David Bradley
Atomic absorption spectroscopy is used in a study published in Angewandte Chemie that demonstrates how biodiesel might be produced from microalgae.
Read More
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
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
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
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
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
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
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
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
