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The FAAS track: Synbiotics and breast milk

Date: Mar 15, 2015

Author: David Bradley

FAAS (flame atomic absorption spectroscopy)  has been used to determine the concentration of essential trace metals, calcium, copper, iron, magnesium and zinc, in breast milk. The results  suggest that normal dietary intake do not affect levels available to breastfeeding infant and so mothers should be encouraged to take a supplement when they are deficient.

Read More thumbnail image: The FAAS track Synbiotics and breast milk

Journal Highlight: Revisiting the electrochemical impedance spectroscopy of magnesium with online ICP-OES

Date: Mar 2, 2015

Author: spectroscopyNOW

Electrochemical impedance spectroscopy was coupled with online atomic emission spectroelectrochemistry to simultaneously measure Mg2+ concentration and electrochemical impedance spectra during Mg corrosion in real time.

Read More thumbnail image: Journal Highlight Revisiting the electrochemical impedance spectroscopy of magnesium with online ICP-OES

Synchronize watches: NOW!

Date: Feb 15, 2015

Author: David Bradley

Cryogenically cooled optical lattice clocks can be synchronized to one part in 2.0 x 10^18, which means they will differ by just one second every 16 billion years or so. This is a hundred times more precise than current state of the art caesium atomic clocks and could have implications for instrumentation used in the measurement of fundamental physical constants.

Read More thumbnail image: Synchronize watches NOW

Journal Highlight: Assessing the engagement, learning, and overall experience of students operating an atomic absorption spectrophotometer with remote access technology

Date: Feb 1, 2015

Author: spectroscopyNOW

The effectiveness of using remote access technology to operate an atomic absorption spectrophotometer for analyzing the iron content in a crude myoglobin extract has been assessed.

Read More thumbnail image: Journal Highlight Assessing the engagement learning and overall experience of students operating an atomic absorption spectrophotometer with remote access technology

Choose greens wisely: AAS reveals calcium availability

Date: Jan 15, 2015

Author: David Bradley

An in vitro study using atomic absorption spectroscopy has investigated the concentrations of calcium found in diverse green vegetables commonly used in Indian cuisine as well as allowing the researchers to comment on the availability for absorption from the diet of the calcium present in these edible plants.

Read More thumbnail image: Choose greens wisely AAS reveals calcium availability

Journal Highlight: A path towards a better characterisation of silicon thin-film solar cells: Depth profile analysis by pulsed rf GD-OES

Date: Jan 2, 2015

Author: spectroscopyNOW

The analytical potential of rf pulsed glow discharge optical emission spectrometry has been studied for quantitative depth profiling of thin-film solar cells based on hydrogenated amorphous silicon.

Read More thumbnail image: Journal Highlight A path towards a better characterisation of silicon thin-film solar cells Depth profile analysis by pulsed rf GD-OES

Sperm quality and aluminium: Atomic revelations

Date: Dec 15, 2014

Author: David Bradley

Could aluminium be responsible for a decades-long decline in sperm quality? Researchers in France and the UK have used graphite furnace atomic absorption spectrometry to analyse aluminium content of semen samples an found that men with "oligozoospermia" had a statistically higher aluminium concentration than others.

Read More thumbnail image: Sperm quality and aluminium Atomic revelations

Journal Highlight: Rapid cell mode switching and dual laser ablation inductively coupled plasma mass spectrometry for elemental bioimaging

Date: Dec 1, 2014

Author: spectroscopyNOW

Two different approaches to improve the limits of detection in elemental bioimaging by ICP-MS have been developed, based on two ICP-MS detectors coupled to one laser ablation system, or a single ICP-MS instrument with fast cell mode switching between individual line scans.

Read More thumbnail image: Journal Highlight Rapid cell mode switching and dual laser ablation inductively coupled plasma mass spectrometry for elemental bioimaging

Extreme isotope effects: Changing bonds

Date: Nov 15, 2014

Author: David Bradley

The effects of different isotopes present in a molecule can affect the making and breaking of chemical bonds during the course of a chemical reaction. However, work published in Angewandte Chemie uses theoretical calculations and other techniques to demonstrate that, in extreme cases, isotopic substitution can even cause a fundamental change in the type of chemical bond.

Read More thumbnail image: Extreme isotope effects Changing bonds

Journal Highlight: Towards a protocol for the trace element analysis of glass from rhyolitic shards in tephra deposits by laser ablation ICP-MS

Date: Nov 5, 2014

Author: spectroscopyNOW

LA-ICP-MS analysis of rhyolitic glass shards was carried out using small ablation craters with calibration by a silicon internal standard to allow for interferences from calcium-rich phenocrysts and avoid issues related to the ablation of the mounting resin.

Read More thumbnail image: Journal Highlight Towards a protocol for the trace element analysis of glass from rhyolitic shards in tephra deposits by laser ablation ICP-MS
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