App Notes

This application note describes the use of EVOLUTE® EXPRESS WCX for extraction of three catecholamines (epinephrine, norepinephrine and dopamine) from human plasma before LC-MS/MS.

A comprehensive guide to the applications of time-of-flight mass spectrometry for gas chromatography

The monitoring of drugs of abuse in biological matrices requires methodology sensitive enough to monitor well below therapeutic levels and selective enough for clear identification of specific drugs without false positives.

As of July 2015, 23 states and Washington D.C. in USA have legalized the medical use of marijuana, while 4 states and Washington D.C. have legalized the recreational use of marijuana. As a result, many forensic toxicology labs are looking for fast, reliable, and cost-effective methods to determine cannabis potency and pesticides in edibles.

Bromate is a disinfection byproduct generated by ozonation during drinking water purification.

Arsenic is ubiquitous in the earth’s crust in low concentrations. However, elevated levels can be found in mineral deposits and ores that were formed due to specific geological conditions (volcanic rock, phosphate and sulfide mineral deposits).

VoltIC pro I is the perfect combination of voltammetry and ion chromatography for the fully automated analysis of anions, cations, and heavy metals

In analyses of drinking water and waste water, the TOC provides information about the sample's contamination level. The new 7010 TOC Analyzer enables rapid, precise online process control of the TOC in liquid samples.

The automated system MATi 13 determines the permanganate index in all kind of water samples according to DIN EN ISO 8467.

The determination of the physical and chemical parameters as electrical conductivity, pH value, p and m value (alkalinity), chloride content, the calcium and magnesium hardness, the total hardness, as well as fluoride content are necessary for evaluating the water quality.