Column: Atomic Perspectives

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.
May 01, 2016
Spectroscopy
When developing or optimizing an ICP-OES method for trace-element analysis, a number of parameters must be evaluated, including analytical wavelengths, interferences, plasma parameters, data acquisition parameters, and validation. Here’s what to consider for each.
Mar 01, 2016
Spectroscopy
The American Chemical Society’s (ACS) book on reagents and reference materials, Reagent Chemicals, has become a reference worldwide for the chemicals used in high purity applications. In the new 11th edition of the book, various updated methods and new procedures have been adopted. Of particular importance are the new plasma-based spectrochemical methodologies for the determination of heavy metals in reagent chemicals.
Oct 01, 2015
Spectroscopy
The importance of routine maintenance in ICP-MS cannot be overemphasized. The potential for thermal instability, corrosion, chemical attack, blockage, matrix deposits, and signal drift is much higher with ICP-MS than with other atomic spectroscopy techniques. By following the guidelines provided here, however, you can reduce the frequency of routine maintenance and ensure optimal instrument performance.
Jul 01, 2015
Spectroscopy
Two novel X-ray diffraction (XRD) techniques—back-reflection energy-dispersive XRD and mineral- or phase-specific XRD—enable the rapid analysis of unprepared samples using handheld instrumentation for remote applications.
May 01, 2015
Spectroscopy
A novel adaptation to inductively coupled plasma-mass spectroscopy (ICP-MS), mass cytometry provides researchers with a tool to study the complexity of biology at the single-cell level.
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