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Overview of High-Efficiency Transmission Gratings for Molecular Spectroscopy

April 1, 2014

This article provides a basic overview of the capabilities of transmission gratings optimized for molecular spectroscopy.

Scattering Impact Analysis and Correction for Leaf Biochemical Parameter Estimation Using Vis–NIR Spectroscopy

July 1, 2011

Simulated leaf spectral data were generated to analyze scattering impact and then compared to experimental data to validate the conclusions of the simulation.

Pittcon 2011 New Product Review

May 1, 2011

Our yearly review of the hottest products at Pittcon

An Integration of Modified Uninformative Variable Elimination and Wavelet Packet Transform for Variable Selection

April 1, 2011

The wavelet packet transform (WPT) combined with the modified uninformative variable elimination (MUVE) method (WPT–MUVE) is proposed to select variables for multivariate calibration of spectral data.

Spectroscopy in Space: Hubble and the Cosmic Origins Spectrograph

May 15, 2009

In an upcoming spacewalk, shuttle astronauts will swap the Corrective Optics Space Telescope Axial Replacement (COSTAR) device for the new Cosmic Origins Spectrograph (COS).

UV-Vis Diffuse Reflectance of Thermochromic Materials Including Color-Changing Paint

February 1, 2009

Some powders and rough surfaced solids change color as a function of temperature, a phenomenon known as thermochromism. Such phenomena can be effectively studied by UV-Visible spectroscopy in combination with a diffuse reflection accessory equipped with temperature-controlled reaction chamber, as demonstrated here with a thermal paint.

Liquid Matrices for Analyses by UV-MALDI Mass Spectrometry

August 7, 2008

Data are presented for a pH-adjustable liquid UV-matrix-assisted laser desorption ionization (MALDI) matrix for mass spectrometry analysis. The liquid matrix system possesses high analytical sensitivity within the same order of magnitude as that achievable by the commonly used solid UV-MALDI matrices but with improved spot homogeneity and reproducibility. The pH of the matrix has been adjusted, achieving an on-target pH range of 3.5?8.6, which has allowed for the performance of a tryptic digest within the diluted pH-optimized liquid matrix.

Improved Performance and Functionality in UV-Visible Measurements

March 1, 2008

Market Profile: UV/Vis/NIR

March 1, 2008

While the overall laboratory UV and Visible spectroscopy market was worth well over $700 million in 2007, the UV/Vis/NIR segment represented less than 10% of it. UV/Vis/NIR instruments utilize multiple detectors to cover a broader spectrum of analysis, and typically are among the highest-end systems in the UV-Vis market.

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