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Power up: New lasers for spectroscopy

Date: May 15, 2018

Author:

Researchers in the USA have demonstrated a terahertz semiconductor laser with record-breaking output power that could be useful in various forms of spectroscopy and other applications.

Read More thumbnail image: Power up New lasers for spectroscopy

Journal Highlight: Trace elements in ancient gold products with PGE microinclusions from archaeological sites of the Urals and North Black Sea Region: LA–ICP–MS data

Date: Apr 30, 2018

Author: spectroscopyNOW

An LA–ICP–MS study of the trace element compositions of archaeological gold products of the Urals and North Black Sea region that contain microinclusions of platinum group minerals indicated that cupellation was the most common technique of gold refinement.

Read More thumbnail image: Journal Highlight Trace elements in ancient gold products with PGE microinclusions from archaeological sites of the Urals and North Black Sea Region LAICPMS data

Copper removal: Nanogel tested with AAS

Date: Apr 15, 2018

Author: David Bradley

Scientists in Iran have developed a free radical synthesis of nanosilver/gelatin-poly (acrylic acid) nanocomposite hydrogels as antibacterial agents that can remove copper(II) metal ions. They used a raft of techniques including atomic absorption spectroscopy to evaluate their setup.

Read More thumbnail image: Copper removal Nanogel tested with AAS

Journal Highlight: Magnetic dispersive solid‐phase extraction based on graphene oxide/Fe3O4@polythionine nanocomposite followed by atomic absorption spectrometry for zinc monitoring in water, flour, celery and egg

Date: Apr 3, 2018

Author: spectroscopyNOW

A new graphene oxide/Fe3O4@polythionine nanocomposite sorbent has been produced for the magnetic dispersive solid‐phase extraction and flame atomic absorption spectrometric detection of zinc(II) in water, flour, celery and egg.

Read More thumbnail image: Journal Highlight Magnetic dispersive solidphase extraction based on graphene oxideFe3O4polythionine nanocomposite followed by atomic absorption spectrometry for zinc monitoring in water flour celery and egg

Gains and losses: Nanoscale temperature probe

Date: Mar 15, 2018

Author: David Bradley

It is now possible to measure the local temperature of a material from an area about a billionth of a metre wide, thanks to work by US researchers.

Read More thumbnail image: Gains and losses Nanoscale temperature probe

Journal Highlight: New applications of LA–ICP–MS for sourcing archaeological ceramics: microanalysis of inclusions as fingerprints of their origin

Date: Mar 5, 2018

Author: spectroscopyNOW

The latest methodological advances using LA-ICP–MS for differentiating the origins of petrographically and chemically similar ceramic raw materials have been described with examples.

Read More thumbnail image: Journal Highlight New applications of LAICPMS for sourcing archaeological ceramics microanalysis of inclusions as fingerprints of their origin

Heavy metal drugs: Atomic answers

Date: Feb 15, 2018

Author: David Bradley

Axial viewed inductively coupled plasma atomic emission spectrometry with ultrasonic nebulization has been used to determination concentrations of various metallic and other elemental impurities in oral pharmaceutical products.

Read More thumbnail image: Heavy metal drugs Atomic answers

Journal Highlight: Metallic fumes at indoor military shooting ranges: Lead, copper, nickel, and zinc in different fractions of airborne particulate matter

Date: Jan 29, 2018

Author: spectroscopyNOW

Levels of lead, copper, nickel and zinc in particulate matter at indoor military shooting ranges have been measured by ICP-OES and ICP-MS.

Read More thumbnail image: Journal Highlight Metallic fumes at indoor military shooting ranges Lead copper nickel and zinc in different fractions of airborne particulate matter

Gluten free: Mineral free? LIBS reveals all

Date: Jan 15, 2018

Author: David Bradley

Laser-induced breakdown spectroscopy (LIBS) has been used for the rapid analysis of concentrations of ash, potassium, and magnesium in gluten free flour.

Read More thumbnail image: Gluten free Mineral free LIBS reveals all

Journal Highlight: Determination of internal temperatures within nitric oxide inductively coupled plasmas

Date: Jan 1, 2018

Author: spectroscopyNOW

A dual, in situ broadband absorption and optical emission spectroscopy system was designed to study neutral and excited state species energetics in nitric oxide plasmas, specifically rotational and vibrational temperatures across a broad spectral range.

Read More thumbnail image: Journal Highlight Determination of internal temperatures within nitric oxide inductively coupled plasmas
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