Column: Atomic Perspectives

Oct 01, 2018
Spectroscopy
With analytical advances, the clinical practice threshold for lead has dropped from 60 to 5 μL/dL.
Jul 01, 2018
Spectroscopy
This study explores the possibility of measuring the metal content of crude oils using EDXRF in samples as received in both the direct and indirect excitation mode.
May 01, 2018
Spectroscopy
A look at the implementation of the new United States Pharmacopeia (USP) chapters and the International Conference for Harmonization (ICH) guidelines for elemental impurities from an historical perspective, providing insight into the changes and considering the challenges and opportunities that lie ahead as the industry embraces the new methodology.
Mar 01, 2018
Spectroscopy
How to select the optimum atomic spectroscopic technique for orally delivered drugs, based on the J-values described in the validation protocols outlined in USP Chapter <233>
Oct 01, 2017
Spectroscopy
How much lead is in our daily lives? We take a look at current research concerning lead in the United States food supply and investigations using ICP-MS into the measurement of high concentrations of lead in food.
Jul 01, 2017
Spectroscopy
An evaluation of the ability of XRF spectrometry to perform elemental impurity analysis of 12 elements in various pharmaceutical materials
May 01, 2017
Spectroscopy
This study demonstrates a new imaging approach by coupling LA with ICP-TOF-MS in two application areas: geology and biology.
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.
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.
Jul 01, 2016
Spectroscopy
Parameter optimization is illustrated through the determination of titanium in a polymer and the multielement analysis of high-purity graphite using the ashing sample preparation method.
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