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Spectroscopy

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Spectroscopy Articles

Below is a list of articles that have been published on this topic.
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Lead in the Environment

Lead is an environmental contaminant of concern both in the lithosphere and hydrosphere. It is a non-essential element that is poisonous to both humans and animals. Its health risk has been known for thousands of years, with lead poisoning documented in ancient civilisations.

Environmental Quality Standards

It was in 2008 that the European Parliament and Council first published the Environmental Quality Standards Directive. This publication lays down environmental quality standards (EQS) for priority substances and certain other pollutants as provided for in Article 16 of the Water Framework Directive 2000/60/EC (WFD), with the aim of achieving good surface water chemical status and in accordance with the provisions and objectives of Article 4 of that Directive. As a Europe wide directive, each member state has a plan for both assessing their water bodies and achieving compliance with the annual average and maximum concentrations, as set out in the document.

Arctic Metrology

The polar environment is under a constantly increasing interest: climate change comes first and comes faster in the arctic. Multitudes of observations are needed to understand the environment and its evolution. The traceability of data becomes fundamental for the comparability of the many and different measurements’ results.

The True Cost of Water

Without adequate water supplies and an understanding of the true value of water, many businesses would be incapable of operating. Defining the true value of water helps businesses make intelligent decisions regarding how they source, use, reuse and dispose of water in order to maintain profitable economics of operation.

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Atomic Spectrometry Methods

Mössbauer Spectroscopy

Improving Analysis

Fourier Transform Infrared Spectroscopy

Fourier Transform Infrared Spectroscopy [Sep 2012]. Published in AWE International - Air, Water & Environmental monitoring, analysis and control of industrial process emissions in Europe and the Middle East. AWE International (Air, Water and Environment) is the only A4 glossy magazine that reports to Europe and the Middle East on matters relevant to the environmental analysis industry.

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Mass Spectrometry [Mar 2012]

In the mid 80s I worked in a research lab which was on the immediate north bank of Melbourne’s Yarra River. The ‘mass spec’ we had there, which was by that time elderly and had been modified several times, had become troublesome to a degree that the Chief of the lab had, he told me himself, been tempted to throw it into the Yarra. Happily that did not happen and, with the aid of an exceptionally skilled instrumentation engineer, my technician and I were able to obtain a few more productive years of service from it.

Measuring Stack Gas Emissions [Mar 2012]

The Environment Agency has issued Technical Guidance Note (TGN) M22, within its series of monitoring TGNs, to provide guidance on necessary requirements when using manual extractive Fourier transform infrared (FTIR) spectroscopic instruments to measure emissions of pollutants from industrial stacks. It is not applicable to FTIR used for continuous emissions monitoring.

Gas Chromatography Sampling Emissions

The government’s Air Quality Strategy for England, Scotland, Wales and Northern Ireland 2007 sets national air quality standards to protect human health, and is the main policy instrument for improving air quality. Policies set out in the strategy support the achievement of national air quality objectives and EU air quality limit values.

Spectroscopy in Space

Extreme weather, droughts, floods, famine, disease, migration of populations and threats to national security are just some of the predicted impacts of significant and rapid climate change. The quality of the air we breathe is strongly linked with human health. Various studies have shown links between episodes of poor air quality and increased hospital admissions and premature deaths. As worldwide industrialisation and urbanisation increases populations become increasingly exposed to polluted air.

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Spectroscopic Techniques

In n.m.r. a radio frequency is applied to the substance of interest together with a progressively increasing magnetic field. When the magnetic field is such that the separation of the energy levels it induces corresponds to the energy of a photon of the applied radiation there will be absorption of the radiation and therefore a signal. Nuclei in chemical compounds are not ‘bare’, and the molecular environment of a nucleus influences the spacing of the energy levels and hence the magnitude of the field at which a signal will occur. This is called chemical shift and is of the order of parts per million of the applied field.

Spectroscopic Techniques: Atomic Absorption

Electromagnetic radiation, of which solar flux is composed, encompasses visible light but also extends far beyond it to shorter and to longer wavelengths than our eyes can respond to. When light is passed through a prism it is resolved into components, as is well known from studies of elementary physics or, equivalently, from observation of a rainbow.

Sampling Soil From our Fragile Earth

XRF spectrometry is making a significant contribution to help Antarctica - The remediation of contaminated soils in Antarctica is conducted under the auspices of the Antarctic Treaty Committee for Environmental Protection. Scientists representing many governments are participating in the program. This article outlines the impact of human activity on the continent and provides an insight into how X-ray fluorescence (XRF) spectrometry is being used on-site by analysts from the Australian Antarctic Division, Department of the Environment and Water Resources to direct and monitor the progress of the clean-up at an old research station in East Antarctica.

On-line and In-situ UV/Vis Spectroscopy

The advantages of online sensors for water quality analysis are becoming ever more widely recognised. The actual number of applications, nevertheless, remains rather limited to this date due to the limited capabilities of the instruments available. The introduction of spectrometric multi parameter probes with low maintenance requirements, however, is now changing the face of online monitoring significantly.

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State of the Art Spectroscopy

Protecting our environment is the most important strategy for maintaining a high quality of life for current and future generations.

Spectroscopy Trends and Developments

Spectroscopy literally means, "looking at the spectrum". The spectrum we talk about here arises in the interaction of electromagnetic radiation with the substance under investigation. It describes the strength of the interaction as a function of the wavelength, frequency, wavenumber or photon energy of the radiation.

 

Current Issues

Health and Safety International | Issue 67 Health and Safety Middle East | Issue 43 OSA Magazine | Issue 19 AWE International | Issue 47 AMH Magazine | Issue 11 EMH Magazine | Issue 10

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