ICP/ICP-MS

Mar 01, 2017
Spectroscopy
The single-particle analytical technique can quantitate the difference between ionic and particulate signals, measure the particle concentration (particles per milliliter), and determine the particle size, size distribution, particle agglomeration, and dissolution. As a result, ICP-MS is a key analytical technique in assessing the fate, behavior, and distribution of nanomaterials in the environment.
Jan 01, 2017
Spectroscopy
An easily constructed flow injection system can be used with this robust FI-ICP-MS method for daily measurements of silver in seawater in an ordinary ICP-MS laboratory.
Nov 01, 2016
Special Issues
The accurate determination of protein concentration is a challenge for biopharmaceutical companies when no reference standard is available. This isotope dilution ICP-MS/MS method based on sulfur determination is fast and allows for very accurate determination of a single protein in solution after microwave digestion. The method is tolerant of most matrices used for therapeutic protein formulations and is widely applicable.
Nov 01, 2016
Special Issues
In this study, red and white wines were investigated using an ICP-MS method and 14 different elements were quantified simultaneously: arsenic, cadmium, cesium, copper, chromium, vanadium, iron, manganese, nickel, lead, selenium, tin, thallium, and zinc. The developed method is highly accurate, regardless of element concentration.
Nov 01, 2016
Special Issues
Considering the relatively small number of micronutrients in food and soil and that these nutrients are generally present at high levels, ICP-OES offers an excellent compromise of speed, cost, and simplicity for this analysis. Microwave-assisted digestion allows for a nearly unified sample preparation method across all samples.
Oct 04, 2016
By Spectroscopy Editors
The analysis of metals using inductively coupled plasma–mass spectrometry (ICP-MS), ICP-atomic emission spectroscopy (ICP-AES), and atomic absorption can serve many purposes in environmental, health, and forensic studies. Yi He, a chemistry professor at John Jay College of Criminal Justice at The City University of New York, has been using these elemental analysis techniques for fingerprinting and provenance of counterfeit cigarettes and as an educational tool. Here, she discusses some of that work.
Oct 01, 2016
Spectroscopy
Using this method, complete elemental recovery and removal of organic matrices can be achieved safely and up to 57 elements can be determined in oils with good accuracy and precision. The removal of organic matrices during digestion helps limit the formation of polyatomic spectral interferences and also improves instrument stability.
Jan 01, 2016
Spectroscopy
By Spectroscopy Editors
Annemie Bogaerts and Maryam Aghaei of the University of Antwerp, Belgium, are carrying out computational modeling to examine how various properties of the ICP, such as gas flow path lines and ionization effects, are affected by various factors—such as gas flow rates, applied power, and even the very presence of a mass spectrometry sampler. Using their developed model, one can predict optimum conditions for specific analyses.
Jan 01, 2016
Spectroscopy
By Spectroscopy Editors
Matrix effects in ICP-OES and ICP-MS often cause signal suppression, but can lead to signal enhancement as well. Guillermo Grindlay of the University of Alicante, in Spain, discusses his work to better understand under what conditions these matrix effects occur and what mechanisms are involved.
Nov 01, 2015
Special Issues
By Spectroscopy Editors
New studies conducted by Shi Jiao and John Olesik at The Ohio State University have important implications for understanding the fundamental causes of matrix effects in ICP-MS, and for the choice of internal standards.
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