Spectroscopy-10-01-2019
Using Reference Materials, Part II: Photometric Standards
October 1st 2019Alignment of the instrument y-axis is a critical step for quantitative and qualitative measurements using spectroscopy. Here, we explain in detail how to use photometric standards for ultraviolet, visible, near infrared, infrared, and Raman spectroscopy.
Strategies for Achieving the Lowest Possible Detection Limits in ICP-MS
October 1st 2019A laminar flow box for sampling is combined with a positive voltage on the skimmer cone to reduce detection limits to pg/L concentrations in ICP-MS. These improvements reduce the risk of contamination and increase the efficiency of ion sampling and focusing.
Detecting and Identifying Food Colorants with SERS
October 1st 2019SERS is a method that is receiving new attention in the detection, analysis, and identification of both natural and artificial food colorants. Lili He, at the University of Massachusetts, Amherst, recently spoke to Spectroscopy about this important analytical work.
Adsorbate-Induced Morphological Changes of PVD-Deposited Nano Island Film SERS Substrates
October 1st 2019The morphology and gap spacing of nano-island film SERS substrates are key factors defining the properties of analyte‒substrate interactions. These results of the study described here have implications for understanding signal variation in SERS and in designing future SERS assays.
Advances in the Applications of Lasers for Bioimaging: Light Sheet Microscopy
October 1st 2019Lasers allow advances for investigation of biological samples. Discussed here are some of the most interesting recent developments in light sheet microscopy for bioimaging, including a technique that allows for unique viewing of large, intact samples including biopsies.
The 2019 Emerging Leader in Molecular Spectroscopy Award
October 1st 2019Ishan Barman, this year’s Emerging Leader in Molecular Spectroscopy award recipient, leads a research team combining spectroscopy, imaging, and chemometrics to seek greater understanding of the pathological changes of human cells and tissues.
