Atomic Perspectives Column - Spectroscopy
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Atomic Perspectives Column

Atomic Absorption: Feeding the Food Safety Market

July 1, 2010

While viewed as a mature technology, atomic absorption is still an attractive choice, particularly in the area of food safety.

Using Qualifier Ions to Validate Multielement ICP-MS Data in Complex Samples

May 1, 2010

Guest authors Steve Wilbur and Ed McCurdy discuss the role of qualifier ions in ICP-MS research in this month's installment of "Atomic Perspectives."

Electron Transitions in Optical Emission and X-Ray Fluorescence Spectrometry

March 1, 2010

This article is a follow-up to an earlier "Atomic Perspectives" column on the spectral lines of hydrogen (1).

Advantages and Disadvantages of Different Column Types for Speciation Analysis by LC-ICP-MS

November 1, 2009

Speciation analysis by LC-ICP-MS has been growing rapidly in popularity and application over the past several years. Not only have people begun looking at different elements and species, but there has also been an increase in the variety of matrices that speciation analysis is being performed on.

Software Features to Improve Quality Control and Data Validation in the Inorganic Laboratory

August 24, 2009

One of the most difficult tasks in any laboratory is the validation and assurance of all data being reported. Whether or not this is being mandated by a regulating agency, it is imperative that the quality of data from any analysis be controlled. How do the laboratory workers ensure the quality of their reported analyses and how do they demonstrate this quality?

Universal Quantification — The Uncelebrated Strength of ICP-MS

May 1, 2009

Guest columnist Steven Wilbur discusses the elemental nature of ICP-MS and its strength as a universal quantifier, an aspect of the technique he believes has not received enough attention.

Hyphenated ICP-MS Techniques for Speciation Analysis

March 1, 2009

The authors discuss speciation analysis methods that enable scientists to identify and measure the quantities of one or more individual chemical species in a sample.

Wilhelm Conrad Röntgen and the Discovery of X-Rays

July 14, 2009

Volker Thomsen takes a look at the impact that the discovery of X-rays by Wilhelm Röntgen in 1895 has had on the world.

The Spectral Lines of Hydrogen

November 1, 2008

A short history of the early scientific developments related to the optical emission lines of hydrogen is presented. These were crucial to the development of the quantum theory. Balmer's empirical formula was an important milestone. Rydberg and others provided additional work, especially for higher atomic numbers. However, it remained for Bohr to provide the physical reasoning.

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