Column: Atomic Perspectives

Nov 01, 2012
Spectroscopy
By Spectroscopy Editors
ICP-OES can provide assistance in setting up an EPA 200.7 soil analysis method.
Jul 01, 2012
Spectroscopy
By Spectroscopy Editors
How to reduce plasma-, matrix-, and solvent-induced polyatomic interference by bleeding a collision–reaction gas into the tip of the interface skimmer cone
May 01, 2012
Spectroscopy
By Spectroscopy Editors
This tutorial on the chemical principles involved in dissolution, stability, and matrix components will help you successfully analyze a broad spectrum of metal analytes with ICP-MS using liquid introduction or flow injection.
Mar 01, 2012
Spectroscopy
By Spectroscopy Editors
For any given spectrometric system with a defined resolution and excition results, the background equivalent concentration is a characteristic of spectral lines.
Nov 01, 2011
Spectroscopy
By Spectroscopy Editors
Wastewater from coal-fired power plants is linked to a wide range of environmental and human health concerns. Measuring low levels of toxic trace metals in these wastewaters is complicated, however, by high levels of interfering matrix elements. A new EPA method using ICP-MS addresses this analytical challenge.
Sep 01, 2011
Spectroscopy
By Spectroscopy Editors
The advantages and disadvantages of measuring mercury with cold vapor atomic absorption spectroscopy, cold vapor atomic fluorescence spectroscopy, and direct analysis by thermal decomposition are explained.
Jul 01, 2011
Spectroscopy
By Spectroscopy Editors
Here are nine suggestions for improving this valuable technique.
May 01, 2011
Spectroscopy
By Spectroscopy Editors
Most analytical measurements performed by either inductively coupled plasma–optical emission spectrometry (ICP-OES) or ICP–mass spectrometry (MS) require accuracy and precision, which are essential for obtaining correct answers. However, all modern ICP-OES and ICP-MS instruments have the ability to perform semiquantitative analyses. This seems strange since accuracy is important, but semiquantitative analysis does have a role in analytical measurements. This article will explore why semiquantitative analysis is important and will look at various ways it can be performed and implemented.
Mar 01, 2011
Spectroscopy
By Spectroscopy Editors
The USP proposes the use of analytical techniques capable of measuring impurities at the specified limits with optimal selectivity, sensitivity, simplicity, and robustness.
Nov 01, 2010
Spectroscopy
By Spectroscopy Editors
ICP-MS is powerful technique capable of measuring very low levels in a wide variety of sample types, limited only by cleanliness and the presence of interences. This article will examine the types of interferences that are encountered and various ways of dealing with them using a quadrupole ICP-MS instrument: mathematical correction equations, matrix removal, and cell-based ICP-MS. The strengths and limitations of each method will be discussed.
native1_300x100
lorem ipsum