In our February issue:
COLUMNS
Molecular Spectroscopy Workbench
Multiparticle Analysis by Raman Microscopy
Fran Adar
There are multiple circumstances where characterization of a collection of particles has value to analysts. In the case of small-molecule pharmaceuticals, the solid form of the active pharmaceutical ingredient has to be controlled because of its impact on stability, bioavailability, and IP protection. Raman analysis of relatively large areas with sparsely dispersed particles is now integrated with particle statistics. Results of a few studies are shown here.
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Selecting the best ICP-OES plasma interface for your research
Learn core concepts surrounding optical interfaces available for ICP-OES spectrometers and the strengths and weaknesses of each. Learn how each works and why the interface should be a major factor in your selection of the best instrument for your research. The paper also introduces a unique new approach called MultiView.
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Chemometrics in Spectroscopy
Units of Measure in Spectroscopy, Part III: Summary of Our Findings
Howard Mark and Jerome Workman, Jr.
What is it that we thought we knew, that we have learned “ain’t so” from the work reported in this series of columns? Read more >> |
Spectroscopy Spotlight
What New Methods to Measure Isotope Ratios Can Reveal About the Environment, Humans, and the Earth
Multiple-collector ICP-MS has some specific advantages over traditional ICP-MS and can be used for diverse applications. Dominique Weis explains what the method can do. Read more >> |
Spectroscopy Spotlight
Top Down, Middle Out, and Bottom Up: Mass Spectrometry in Biomedical Research
Catherine Fenselau talks about her research with mass spectrometry–based analyses of proteins associated with cells known to be an obstacle to anticancer immunotherapies. Read more >> |
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PEER-REVIEWED ARTICLES
Surface Polaritons in Zinc Phosphide
K. Shportko, T. Barlas, and E. Venger
Dispersion of surface polaritons in zinc phosphide (Zn3P2) single crystals is presented here for the first time, using the attenuated total reflectance method to excite the polaritons.
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A Rapid Extraction Method for Atomic Absorption Spectroscopy Analysis of Zinc Oxide in Cosmetics and Skin Care Products
James M. Koedam
When zinc oxide is used in cosmetics as a sunscreen, quality control is essential. This aqua regia digestion method is easier and faster than the fusion method commonly used, and can be automated for additional efficiency.
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Simultaneous Determination of Inorganic Forms of Arsenic, Antimony, and Thallium by HPLC–ICP–MS
Sebastian Szopa and Rajmund Michalski
Speciation analysis is becoming more and more important. This method has high selectivity and low detection and quantification limits, and has the unique ability to provide simultaneous separation and determination of inorganic species of these elements.
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Advancing FT-IR Imaging – Synchrotron IR Imaging in Your Lab
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Characterization of Functionalized Nanoparticles Using Ambient Ionization Mass Spectrometry
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