Read the Latest Technical Articles for Lab Professionals - Technical Articles

Sort

Gas Chromatographic Applications for a High-Performance Cyanopropylphenyl-Substituted Polydimethylsiloxane Column Technology
Thursday, May 29, 2008
Frances Sutherland Jim Luong Ronda Gras Peter Heijnsdijk
Many generic stationary phases are available for use in contemporary capillary columns for gas chromatography. read more
Using FTIR Spectroscopy to Analyze Gemstones
Thursday, May 29, 2008
Stephen Lowry
Due to the increasing popularity and high prices of quality gemstones, there is a large market for less expensive stones that resemble the real thing. read more
Robust Solutions for High-Temperature Biodiesel Analysis: Combining Deactivated Metal Columns, Leak-Tight Coupling, and Built-In Retention Gap Technology
Tuesday, January 01, 2008
Jaap de Zeeuw Barry L. Burger
There has been a huge increase in the use of biodiesel fuels. read more
Foam Drainage Investigated Using Terahertz Spectroscopy
Tuesday, January 01, 2008
Justin A. Heuser Anita R. Taulbee Wolfgang U. Spendel Michael R. Hughes Gilbert E. Pacey
The region of the electromagnetic spectrum known as terahertz (tera = 10 12) has remained relatively unexplored due to the limitations of microwave and infrared sources. read more
A Comparison of Real Versus Simulated Contraband VOCs for Reliable Detector Dog Training Utilizing SPME-GC-MS
Tuesday, January 01, 2008
Michael S. Macias Ross J. Harper Kenneth G. Furton
Odor detection has become a focused area of research because of its importance to the forensic, law enforcement, and legal communities. read more
Fused Core Particles for HPLC Columns
Sunday, April 01, 2007
Joseph J. Kirkland Timothy J. Langlois Joseph J. DeStefano
In recent years, there has been a strong movement toward the use of HPLC columns with smaller particles. read more
Rapid, Quantitative Analysis of Multiple Mycotoxins by Liquid Chromatography Tandem Mass Spectrometry
Sunday, April 01, 2007
Mahalakshmi Rudrabhatla Jason S. Wood
The classical example of detrimental effects caused by bacteria, such as E. coli or Bacillus Anthracis, is through invasion of the host. read more
The Nanoliter Syringes
Thursday, February 01, 2007
Andrew D. Sauter
Following an informal collaboration with Affymax (Palo Alto, CA), Agilent Technologies (Palo Alto, CA), and Chem-Space Associates (Pittsburgh, PA), studying electrospray ionization 1 (ESI), the ... read more
Statistics in Analytical Chemistry: Part 25—Calibration Summary
Thursday, February 01, 2007
David Coleman Lynn Vanatta
In a modern chemical-analysis laboratory, virtually all of the testing equipment must be calibrated periodically. read more
Staistics in Analytical Chemistry: Part 28—Statistically Derived Detection Limits
Friday, December 28, 2007
David Coleman Lynn Vanatta
In the previous article (Part 27, American Laboratory, Sept 2007), the world of detection was shown to revolve around three variables: 1) the detection limit, 2) the probability of false positives, a,... read more
Localized Thermal Analysis: From the Micro- to the Nanoscale
Thursday, November 01, 2007
Kevin Kjoller Gregory Meyers Andrew Pastzor
Thermal methods such as differential scanning calorimetry (DSC) and modulated temperature DSC (MDSC), thermogravimetric analysis (TGA), thermomechanical analysis (TMA), and dynamic mechanical analysis... read more
The Role of Optical ICPs in Environmental Analyses
Monday, October 01, 2007
Matthew Cassap
Over the last 50 years, there has been increasing legislation relating to environmental protection and quality. read more
A Weak Anion-Exchange/Reversed-Phase Mixed-Mode HPLC Column and its Applications
Monday, October 01, 2007
Xiaodong Liu Christopher Pohl
Mixed-mode columns address key challenges in analytical method development for HPLC. Reversed-phase (RP) columns (e.g., C18) are most widely used for HPLC separations. read more
Attenuated Total Reflection Explores the Terahertz Region
Monday, October 01, 2007
Jelena Obradovic David A. Newnham Philip F. Taday
Terahertz (1 THz = 1012 Hz) spectroscopic techniques provide the ability to noninvasively explore low-frequency motions in molecular systems in the far-infrared region of the electromagnetic spectrum. read more
Statistics in Analytical Chemistry: Part 27—Receiver Operating Characteristic (ROC) Curves
Saturday, September 01, 2007
David Coleman Lynn Vanatta
Consider the following algebraic equation: 5x + 11y + 39z = 106 Since this single expression has three unknowns, there are many possible solutions; a single exact solution cannot be found. read more
Evaluation of Charged Aerosol Detection (CAD) as a Complementary Technique for High-Throughput LC-MS-UV-ELSD Analysis of Drug Discovery Screening Libraries
Saturday, September 01, 2007
John Loughlin Hong Phan Min Wan Sharon Guo Karen May Baiwei Lin
The successful application of high-throughput screening (HTS) as a tool for drug discovery research has driven the development of both high-throughput organic synthesis (HTOS) for compound collection... read more
Providing Gases for LC-MS Systems in a Safe, Convenient, and Cost-Effective Manner
Wednesday, August 01, 2007
Peter Froehlich
A liquid chromatographic system with a mass spectrometric detector (LC-MS) requires a supply of nitrogen as the curtain gas, pure zero grade air as the source gas, and dry (–40 °F dewpoint) air as the... read more
Thermal Analysis of Biodegradable Material: From Modulated Temperature DSC to Fast Scan DSC
Wednesday, August 01, 2007
Peng Ye Krista Swanson Fiorini
Synthetic polymers derived from petroleum products are used widely on a daily basis. read more
Establishing a Microbial Control Strategy for Active Pharmaceutical Ingredients
Friday, June 01, 2007
Anne M. Warner John D. Stafford Robert E. Warburton
In the pharmaceutical industry, defining the control strategy for a new active pharmaceutical ingredient (API) is a main goal during development of the process for its commercial manufacture. read more
Statistics in Analytical Chemistry: Part 26—Detection Limits: Editorial Comments and Introduction
Friday, June 01, 2007
David Coleman Lynn Vanatta
We believe that detection limits (DLs) should go away. read more

Technical Articles

Sort

Gas Chromatographic Applications for a High-Performance Cyanopropylphenyl-Substituted Polydimethylsiloxane Column Technology

Using FTIR Spectroscopy to Analyze Gemstones

Robust Solutions for High-Temperature Biodiesel Analysis: Combining Deactivated Metal Columns, Leak-Tight Coupling, and Built-In Retention Gap Technology

Foam Drainage Investigated Using Terahertz Spectroscopy

A Comparison of Real Versus Simulated Contraband VOCs for Reliable Detector Dog Training Utilizing SPME-GC-MS

Fused Core Particles for HPLC Columns

Rapid, Quantitative Analysis of Multiple Mycotoxins by Liquid Chromatography Tandem Mass Spectrometry

The Nanoliter Syringes

Statistics in Analytical Chemistry: Part 25—Calibration Summary

Staistics in Analytical Chemistry: Part 28—Statistically Derived Detection Limits

Localized Thermal Analysis: From the Micro- to the Nanoscale

The Role of Optical ICPs in Environmental Analyses

A Weak Anion-Exchange/Reversed-Phase Mixed-Mode HPLC Column and its Applications

Attenuated Total Reflection Explores the Terahertz Region

Statistics in Analytical Chemistry: Part 27—Receiver Operating Characteristic (ROC) Curves

Evaluation of Charged Aerosol Detection (CAD) as a Complementary Technique for High-Throughput LC-MS-UV-ELSD Analysis of Drug Discovery Screening Libraries

Providing Gases for LC-MS Systems in a Safe, Convenient, and Cost-Effective Manner

Thermal Analysis of Biodegradable Material: From Modulated Temperature DSC to Fast Scan DSC

Establishing a Microbial Control Strategy for Active Pharmaceutical Ingredients

Statistics in Analytical Chemistry: Part 26—Detection Limits: Editorial Comments and Introduction

Product Guide

Micromachined HPLC Columns Can Revolutionize Proteomics Workflows

Buyer's Guide: GC-MS for Monitoring Environmental Pollutants

Refocusing the Lens of Cancer Screening

Study: NGS Should Be Go-to Technology on Day Zero of the Next Pandemic

Overcoming Common Challenges in Sample Viability for Single-Cell Research