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Recent Developments in Sulfur Analysis
Thursday, January 17, 2013
Scott Fess
Environmental concerns to limit and minimize sulfur in crude oil and petroleum fuels are continuing to spread to many regions of the world, requiring new standard test methods and modern ... Read More
Recent Advances in ICP Spectrometers
Monday, September 28, 2015
Mark Grey
When SPECTRO Analytical Instruments (Kleve, Germany) sought to redesign its inductively coupled plasma (ICP) spectrometer instrument line, the company’s engineers worked to address some very specific ... Read More
Real-Time Monitoring and Control of Polymer Properties
Thursday, May 26, 2016
Michael F. Drenski Wayne F. Reed
Real-time analysis of polymer properties and reaction kinetics allows scientists to control the outcome of a polymerization process. Read More
Reagent-Free Ion Chromatography Systems With Eluent Regeneration: RFIC-ER Systems
Thursday, February 01, 2007
Yan Liu Zhongqing Lu Chris Pohl John Madden Navette Shirakawa
Since the introduction of ion chromatography (IC) in 1975, Dionex Corp. (Sunnyvale, CA) has continued to improve the performance of IC systems while developing new capabilities for the determination ... Read More
Rapid Testing of Toxic Chemicals
Tuesday, March 01, 2005
Nathalie Boucher Lucie Lorrain Marie-Eve Rouette Elisabeth Perron Nancy Déziel Louis Tessier François Bellemare
The measurement of chlorophyll fluorescent signals from photosynthetic enzyme complexes (PEC) has becomeone of the most powerful indicators for ecophysiologists. Read More
Rapid Screening of Complex Mixtures by Thin Layer Chromatography–Bioluminescence
Friday, September 01, 2006
Sheryl Marie Verbitski Gerald Thomas Gourdin Larissa Marie Ikenouye James Dewey McChesney
The screening of complex mixtures such as foodstuffs, beverages, dietary supplements, and wastewater for toxins and adulterants or potential biological activity is often expensive and time consuming. Read More
Rapid Genetic Identification of Meat
Monday, February 25, 2019
Varouj Amirkhanian Eric Tsai Neo Yang Ashley Cho Jerry Liu
The ability to verify the identity and origin of the meats tested makes a series of CGE systems powerful and cost-effective tools for genotyping. Read More
Rapid Characterization of Large Areas of Graphene Using Raman Spectroscopy
Thursday, August 29, 2013
Tim Batten
Raman spectroscopy probes the vibrations (phonons) in a material. These phonons are characteristic of a given material and allow its chemical and structural properties to be investigated. Read More
Rapid Analysis of Biofuels and Biofuel Blends With Fourier Transform Infrared Spectrometry
Monday, October 01, 2012
Ben Perston
Biofuels—principally biodiesel and bioethanol—have become increasingly important as renewable fuels with a potentially lower carbon footprint than fossil fuels. Read More
Raman and Infrared Spectra: Capturing the Artistry of Spectral Interpretation
Tuesday, October 02, 2012
Michael Boruta
This article focuses on a means of capturing spectrum-to-structure correlations for Raman and infrared spectra. It discusses methods that can be used to obtain, archive, and retrieve this knowledge so... Read More
QuEChERS Dispersive SPE for Multiresidue Pesticide Analysis
Monday, March 01, 2010
Ruth Lewis Anila Khan
Recently formulated pesticides are very different in their physical properties from their predecessors, such as 4,4'-DDT (dichlorodiphenyltrichloroethane). Most recently formulated pesticides are ... Read More
Quartz Crystal Microbalance/Heat Conduction Calorimetry
Friday, July 01, 2005
Allan L. Smith
One need only look around to see that the world is full of surfaces. Read More
Quantitative Nanoparticle Analysis Based on Resistive Pulse Sensing
Friday, June 24, 2016
Andrew N. Cleland Jean-Luc Fraikin Peter Meinhold Franklin Monzon
Nanoparticle analysis is becoming a central part of pharmaceutical development. Read More
Quantitative Analysis of H2A.X and ATM DNA Damage Signals Using Benchtop Flow Cytometry
Friday, September 25, 2015
Mark Santos Wenying Zhang
Assessing the level of DNA damage present in cells is integral to understanding the molecular mechanisms involved in the genome repair process and consequences for cell fate. Read More
Quantitative Analysis of Cannabinoids in Edibles Using Thermal Desorption-GC/MS
Monday, April 08, 2019
Rojin Belganeh William Pipkin Terry Ramus
A simple, rapid, and accurate thermal desorption-GC/MS technique is described for the determination of cannabinoids Read More
Quantitation Without Calibration—Eliminating the Requirement for Calibration Curves in the GC-FID Analysis of Ethanol in Blood, Urine, and Serum
Wednesday, July 26, 2017
Charlie Spanjers Gregory C. Janis
A catalytic microreactor and flame ionization detector enabled accurate analytical quantitation without the analytical overhead or potential inaccuracy associated with the use of a calibration curve. Read More
Quantitating VOCs in Serum Using Automated Headspace-SPME/Cryo-Focusing/Isotope Dilution/Capillary GC/MS
Friday, March 31, 2017
Paul R. Loconto
In January 2007, the author’s lab received a frozen shipment of calibration standards and quality control (QC) samples to perform method validation for quantitating traces of volatile organic ... Read More
Quantifying the Benefits of Standardizing on LIMS
Thursday, February 03, 2005
Jim Neville Catherine Brown
The marked trend by organizations toward standardizing on critical information technology (IT) systems and applications has now moved into the laboratory environment. Read More
Quality Verification of Incoming Liquid Raw Materials by FTIR Spectroscopy
Friday, January 28, 2011
Frank Higgins Alan Rein
The requirement to ensure the quality of incoming raw materials as well as finished products in the food, drug, and cosmetics industries is crucial, and FTIR spectroscopy is widely used for this ... Read More
Quality Standards for Primary Cell Starting Material
Thursday, November 01, 2018
Dominic Clarke Marie Aragon
The repercussions of apheresis procedures, instrumentation, cell collection, and quality control criteria on primary cell starting material quality are examined. Read More