Technical Articles

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

In the past decade we have seen advances in laboratory automation and in assays used to assess biological endpoints. read more

A vast majority of research is dependent on the transfer of a measured volume of liquid from one vessel to another, such as from a bulk container to a microplate. read more

There is an increasing demand for a dedicated, high-quality, and easy-to-use instrument to measure off-gas exhaust in laboratories and industrial settings during the fermentation process. read more

The modern manual pipet has been a laboratory workhorse for several decades, providing researchers with a convenient tool to transfer liquids from one vessel to another with high levels of confidence ... read more

Derived from biological sources, biodiesel is gaining momentum as the energy source of the future, being biodegradable and nontoxic, and producing around 60% less net carbon dioxide emissions than ... read more

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

Trace-level determination of toxic compounds from complex matrices often requires a sample cleanup step such as liquid–liquid extraction (LLE) or solid-phase extraction (SPE) prior to analysis in ... read more

Various materials, typically gels or dispersions with a high concentration of suspended particles, can behave either as elastic solids or as liquids, depending on the degree of force or stress to ... read more

The relative ease of obtaining accurate-mass fragmentation data on modern LC-MS instruments, faster computers, and the availability of large molecular structure databases have recently made it ... read more