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June 2021
Effect of Sampling Optics on Raman Depth Profiling
June 01, 2021
Columns
36
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We illustrate how matching the optical properties of the microscope objective with the sample properties improves the spatial resolution and chemical speciation in depth profile measurements using confocal Raman microscopy.
Using Information-Based Classifications to Distinguish Characteristics of Raw Agricultural Materials by Near-Infrared Spectroscopy
June 01, 2021
Peer-Reviewed Research
36
6
Traditional qualitative analysis of agricultural materials using near-infrared spectroscopy can be improved using information-based classification methods, such as projection based on principal components and the Fisher criterion (PPF).
Exploring the Potential of the Yb(III) (HE)4 Complex for Oncotherapy Using UV-vis Spectroscopy
June 01, 2021
Peer-Reviewed Research
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6
Evaluation of the UV-vis spectra of the reaction product of ytterbium (III) with hematoxylin (HE) indicates the formation of a rare earth complex that further reacts with marine mammal DNA, indicating the potential that this complex may have anti-tumor properties.
Survey of Key Descriptive References for Chemometric Methods Used for Spectroscopy: Part I
June 01, 2021
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The carefully selected literature references in this curated set describe the application of 29 major chemometric methods used for analyzing molecular spectroscopy data.
Fingerprinting of Mineral Medicine Natrii Sulfas by Fourier Transform Infrared Spectroscopy
June 01, 2021
Peer-Reviewed Research
36
6
We show how FT-IR may be used for quality control analysis of natrii sulfas, a transparent crystalline material used in natural medicine that primarily contains sodium sulfate decahydrate, crystallized from sulfate minerals.
Fundamental Research Collaboration and Applications of ICP-OES and ICP-MS Toward Improved Understanding of Elemental Chemical Analysis: Part II
June 01, 2021
Spectroscopy Spotlight
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John W. Olesik of The Ohio State University discusses his collaborative ICP–OES and ICP–MS research and shares insights gleaned over a career of teaching and research.