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Light Scattering Completes GPC and SECby Paul Clarke, Product Manager, Viscotek
Basic GPC/SEC systems that have only a UV or RI detector provide only relative molecular weight measurement. Low angle light scattering (LALS) detectors, on the other hand, directly measure the absolute molecular weight of the sample as it elutes from the column....continue
Picking the Right Analysis Methodby Jerry Sellors, Robert Alexander and Kevin Menard, PerkinElmer Life and Analytical Sciences
FT-IR spectroscopy, Raman spectroscopy and thermal analysis have their own strengths and weaknesses that make them ideal for some applications and not the best choice for others. This article summarizes the strengths of each method, as well as ways they can be used together for additional benefits....continue
Achieving Maximum Sensitivity in GC-MSby Mark Taylor, Richard Whitney, John Monti, and Denny Miser, Shimadzu Scientific Instruments
There are a number of ways to optimize GC-MS sensitivity. When sensitivity is defined in terms of signal-to-noise ratio, increasing sensitivity is achieved by increasing signal, decreasing noise, or a combination of both....continue
Achieving Complete and Cost-Effective Regulatory Compliance for Molecular Spectroscopy Systemsby Mike Garry, Product Manager Spectroscopy Software and Compliance Products, Thermo Fisher Scientific
Recent research has shown that with the involvement of the instrument vendor, companies can substantially reduce the overall cost of regulatory compliance and compress the entire process by as much as 75%....continue
NIR Spectroscopy Takes Laboratory Equipment into the Fieldby Dave Rzasa, CEO and President, ASD Inc.
The global hunger for goods in turn is driving commodity prices to record highs. Companies and manufactures are scrambling for technologies that can leapfrog them from the era of acceptable waste to automated information....continue
Reliable Analysis of Glycerin in Biodieselby Ngoc Nguyen, Kory Kelly and Sky Countryman, Phenomenex, Inc.
Although GC is the standard analysis technique for this method, it has several inherent challenges. These tests run at very high temperatures and standard fused silica columns are not engineered to withstand temperatures above 380 C....continue
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Catalog Provides GC Column Selection ToolsThermo Fisher Scientific intuitive gas chromatography (GC) column selection tools are available in the 2010-2011 Thermo Scientific Chromatography Columns and Consumables catalog...continue
Pulse Discharge Detector Extends GC CapabilitiesVICI's pulsed discharge helium ionization detector (PDD) extends the detection capabilities of the Agilent 6890 and 7890 GCs....continue
GC Solution Analyzes Crude OilThe BenchTOF-dx from ALMSCO International harnesses the power of comprehensive two-dimensional GC combined with time-of-flight mass spectrometry, and is capable of producing classical electron impact ionization spectra....continue
Flask Tech Eliminates Sample HandlingGenevac's SampleGenie flask technology helps scientists eliminate handling of samples by concentrating samples, without loss of volatile components, directly into a small GC or HPLC vial. ...continue
Colorimeter Automatically Measures Transparent SamplesWilkens-Anderson Co.'s Lovibon PFX195 is a spectrophotometric colorimeter that automatically measures the color of transparent samples....continue
Microspectroscopy Software Acquires High-Quality SpectraCRAIC Technologies 64-bit version of MINERVA microspectroscopy software package collects, analyzes and processes microspectra from propriety microspectrophotometers running 64-bit versions of Windows 7....continue
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