Spectroscopy-06-01-2018

Spectroscopy

Calibration Transfer Chemometrics, Part II: A Review of the Subject

June 01, 2018

Chemometrics in Spectroscopy

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Calibration transfer involves several strategies and mathematical techniques for applying a single calibration database consisting of samples, reference data, and calibration equations to two or more instruments. In this installment, we review the chemometric and tactical strategies used for the calibration transfer process.

2D COS of Temperature-Dependent Raman Spectra of Amorphous, Nonoriented Polyethylene Terephthalate to Separate Molecular Conformational Changes from True Crystallization

June 01, 2018

Molecular Spectroscopy Workbench

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Because of the structural use of polymers, it is important to understand the origin of their strength, elongation to break, elasticity, flexibility, and so on. It is in the very low frequency region (the so called “terahertz” range) where it is believed that the real indicators for crystallinity appear.

Exploring the Applicability of Quantitative Models Based on NIR Reflectance Spectroscopy of Plant Samples

June 01, 2018

Peer-Reviewed

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6

The establishment of quantitative models based on the near-infrared (NIR) spectroscopic analysis of plant samples plays an important role in improving both the scope of the models and the accuracy of prediction. This technique could provide a new method for tobacco quality management and provide a new discriminant method for other agricultural products.

Single-Cell ICP-MS Analysis: Quantifying the Metal Concentration of Unicellular Organisms at the Cellular Level

June 01, 2018

Peer-Reviewed

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6

Single-cell ICP-MS can accurately quantify the metal concentrations within individual cells, providing new information about the mean metal content and the variation within a cell population. This method is shown to be a vital tool for assessing the specific uptake of metals by ovarian cancer cells and fresh water algae.

Spectroscopy June 2018 Article PDF

June 01, 2018

Issue PDF

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Click the title above to open the Spectroscopy June 2018 issue in an interactive PDF format.

Market Profile: Metabolomics

June 01, 2018

Market Profile

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Metabolomics is one of the newer “omics” fields, and focuses on the characterization of the small molecule metabolites in biological systems. Metabolomics research has the potential to shed light on certain disease states, monitor patient response to treatment, and contribute to drug target discovery. Applications also span pharmaceutical development and neuroscience research.