Laboratory Conferences - Events | American Laboratory

Statistics in Analytical Chemistry: Part 23—Degrees of Freedom in the Lack-of-Fit Test

In the previous article (Part 22, American Laboratory, June/July 2006), the details behind the lack-of-fit (LOF) test were discussed. read more
Performance-Tested Controlled Atmosphere Glove Boxes

Enhanced particulate containment is an important feature of Protector® Filtered Glove Boxes (Labconco Corp., Kansas City, MO). read more
Statistics in Analytical Chemistry: Part 24—Glossary

Since the beginning of this series of articles, the central topic has been calibration and its associated uncertainty. read more
A High-Purity Water System for Pharmaceuticals Testing

When Velesco Pharmaceutical Services needed high-purity water for research laboratories at its new facility in Plymouth, MI, it chose a water treatment system that would provide affordable HPLC-grade ... read more
Achieving Ultrahigh-Speed Analysis With LC-MS-MS

Ultrahigh-speed liquid chromatography-mass spectroscopy instruments can accelerate analysis times by at least tenfold compared to conventional LC-MS-MS systems. read more
Statistics in Analytical Chemistry: Part 25—Calibration Summary

In a modern chemical-analysis laboratory, virtually all of the testing equipment must be calibrated periodically. read more
Update on Field Flow Fractionation After 40 Years, Still the Best-Kept Secret in Analytical Chemistry

In middle age, field flow fractionation (FFF) is having an identity crisis, although no one seems to notice. read more
Statistics in Analytical Chemistry: Part 26—Detection Limits: Editorial Comments and Introduction

We believe that detection limits (DLs) should go away. read more
Statistics in Analytical Chemistry: Part 27—Receiver Operating Characteristic (ROC) Curves

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
A Nanoparticle Spectrofluorometer With Upgraded Performance Features

A spectrofluorometer has been specially optimized for recording near-IR fluorescence from nanoparticles, and offers a number of improvements over the previous version. read more
Fused Core Particles for HPLC Columns

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

The classical example of detrimental effects caused by bacteria, such as E. coli or Bacillus Anthracis, is through invasion of the host. read more
Increased Throughput in Method 8270 Analysis

Method 8270 is a GC-MS method created by the U.S. EPA Office of Solid Waste for the analysis of semivolatile organics by gas chromatography-mass spectrometry. read more
Automated Chemical Ionization in GC-MS

Gas chromatography with mass spectrometric detection using chemical ionization (CI) has demonstrated great utility in a wide variety of application areas ranging from forensics to environmental to ... read more
Centrifuge Safety and Security

For laboratories around the world, increasing health and safety legislation requires that equipment be operated and maintained so that every step is taken to maximize safety and security. read more