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Low-Cost, Fast, Conventional Peptide Synthesis With HCTU and Automated Peptide Synthesizers
Sunday, June 22, 2008
Christina Hood German Fuentes Hirendra Patel Karen Page Mahendra Menakuru Jae H. Park
Out of a concern for purity and yield, many peptide chemists today choose to extend their reaction times excessively in order to obtain as high a purity and yield as possible. read more
Development of a New Platform of Highly Inert Fused-Silica Capillary Columns
Thursday, July 10, 2008
Jaap de Zeeuw Gary Stidsen Roy Lautamo Chris English Shawn Reese
Gas chromatography technology has consistently improved sensitivity for difficult-to-analyze compounds. read more
A Compact Benchtop FTIR Spectrometer for the Academic Laboratory
Thursday, July 10, 2008
Thomas J. Tague, Jr. Albrecht Rager Paul Turner
Fourier transform infrared spectrometers (FTIRs) currently used in colleges and universities have several limitations. read more
Statistics in Analytical Chemistry: Part 30—Statistically Derived Detection Limits (Concluded)
Thursday, July 10, 2008
David Coleman Lynn Vanatta
In Part 29 (American Laboratory, Feb 2008), Hubaux-Vos detection limits (H-V DLs) were explained and an illustration was given. read more
Nanoparticle Measurement Through Visualization
Friday, August 29, 2008
Bob Carr Andrew Malloy
The analysis of nanoparticles is a ubiquitous requirement in a broad range of industry sectors. read more
Characterization of D-Mannitol by Thermal Analysis, FTIR, and Raman Spectroscopy
Friday, August 29, 2008
Peng Ye Thomas Byron
D-mannitol is a common excipient used in the pharmaceutical formulation of tablets. read more
Advances in Accurate-Mass TOF and Q-TOF LC-MS Systems
Friday, August 29, 2008
Ken Imatani
Due to the growing interest in the comparative analysis of biological samples in the fields of biomarker discovery and metabolomics, the complexity of samples faced by researchers is greater than ever... read more
Nanodissection With Femtosecond Laser Technology
Friday, August 29, 2008
Peggy Menne
Analysis of cells and cellular processes in biological and medical research requires systems for imaging as well as tools for manipulating and dissecting cells and subcellular structures. read more
Particle Image Analysis: Microscopy Takes a Technological Leap Forward
Friday, August 29, 2008
Graham Rideal
Electrical sensing zones, low-angle laser light scattering, field flow fractionation, photon correlation spectroscopy, hydrodynamic chromatography, and laser obscuration time are just some of the ... read more
Quality Evaluation of HPLC-Grade Acetonitrile
Monday, September 01, 2008
Shi-heng Liu
Acetonitrile is the most commonly used organic mobile phase component due to its unique properties that set it apart from the other LC solvents (midrange solvent strength, excellent solvent ... read more
Detection of Chemical Warfare Agents on Surfaces Relevant to Homeland Security by Direct Analysis in Real-Time Spectrometry
Monday, September 01, 2008
H. Dupont Durst J. Michael Nilles Theresa R. Connell James A. Laramée
Analysis of low-volatility, condensed- phase chemicals on surfaces has been an extremely difficult and long-standing objective in environmental monitoring. read more
Light Engines for the Life Sciences
Thursday, September 04, 2008
Arlie R. Conner Claudia B. Jaffe Steven M. Jaffe
Life science instruments present unique challenges to suppliers of light-generation equipment: Inexpensive, high-intensity, uniform, monochromatic light across a broad UV-VIS-IR spectrum is required... read more
Celebrating 25 Years of Inductively Coupled Plasma-Mass Spectrometry
Friday, September 26, 2008
Jeanely Hunt, MS, MBA
2008 marked the 25th anniversary of inductively coupled plasma-mass spectrometry (ICP-MS). read more
Statistics in Analytical Chemistry: Part 31—Receiver Operating Characteristic (ROC) Curves: Equations
Friday, September 26, 2008
David Coleman Lynn Vanatta
Please do not despair! This article is not a series of formulas to be memorized. read more
Reliable Clinical and Forensic Drug Testing: Guideline Supports High-Quality Standards in Laboratory Analysis
Friday, October 24, 2008
Melissa D’Archangelo
Developing reliable and efficient procedures for clinical and forensic drug testing is a challenge for many laboratories. read more
Turning an Acidity or Basicity Quandary Into an Automatic Titration Solution: Solving the Challenge of Acid/Base Balance in Polyol Samples
Friday, October 24, 2008
Chris Hynes Ross Koile
Uniquely quantifying varying levels of acidity or basicity in polyol samples has traditionally required two different methods utilizing less than desirable titrants with less than optimal results. read more
Automation of Solid-Phase Extraction for Urinary Opiate Analysis
Friday, October 24, 2008
Jeffery Hackett Michael J. Telepchak Michael J. Coyer
The identification and confirmation of opiates extracted from biological matrices such as blood, plasma/serum, and urine may often lead to more questions than answers, as many exponents of forensic ... read more
Fritless Chromatographic Microfluidic-Based Columns for Chemical Separations
Monday, October 27, 2008
Frank A. Gomez Attila Gaspar Shima Baghdachi Mark Goldberg Schetema Stevens Jaime Torres Marisol Salgado
The development of microfluidic chips and devices offers a number of advantages over conventional analytical techniques, including small sample volume requirements, portability, fast sampling times, ... read more
Unlocking the Secrets of Automation in the Pharmaceutical Laboratory
Monday, October 27, 2008
Abe Kassis Tarun Patel Kevin Bynum Roy Paul
A brief discussion about dissolution is important to understand the relevance of automation to this field. read more
Measurement of Viscosity in a Vertical Falling Ball Viscometer
Monday, October 27, 2008
Ping Yuan Ben-Yuan Lin
A number of methods are used to measure the viscosity of fluids. read more