Technical Articles

In modern scientific laboratories, the electrospray mass spectrometer is being used extensively. The instrument is highly specific and for many applications is quite sensitive. read more

For the study of molecular structure, X-ray diffraction is a very powerful method that enables scientists to analyze the specific angles of diffracted X-rays and their intensities. X-ray diffraction ... read more

This guide to purchasing gloveboxes points out a number of important considerations, such as safety, configuration, ergonomics, and application. An isolation box is best suited for some applications, ... read more

Over the course of the past two articles (Part 44,Oct 2011, and Part 45, Nov/Dec 2011), R2 has been defined, its components have been explained verbally and mathematically, and the statistic’s ... read more

Synthetic cannabinoids are attracting increasing attention from the drug testing industry because of a sudden surge in the abuse of these compounds. read more

Historically, plate height as given by the Van Deemter equation has been used as the measure for separation efficiency in terms of contribution from the A, B, and C term versus linear velocity. read more

Cancer invasion from a primary tumor site is one of the critical factors in disease prognosis, and together with metastasis is the major cause of morbidity and mortality. read more

As a common intermediate in the synthesis of numerous pharmaceuticals, a-bromobutyric acid displays chirality at the carbon bound to the bromine. read more

For at least two decades, biological markers, or biomarkers, have been promoted as key advances in scientific discovery that provide a measure of biological function. Researchers and, indeed, the ... read more

When J.J. Thomson, the father of mass spectrometry, published his seminal book, Rays of Positive Electricity, 100 years ago, he could not have imagined the vast array of applications that would be ... read more