App Notes

Plastic tubing is available in a variety of opacities ranging from clear to translucent. The transparency of plastic tubing varies for reasons such as providing contrast for visual monitoring of fluid flow, decreasing exposure to ambient light, and making the tubing more distinct for machine vision technology. Visible-NIR transmission spectroscopy is used to assess the amount of frosting applied to plastic tubing to determine if the tubing meets the required opacity level.

This application note describes the extraction of THC, THCA and Carboxy-THC from oral fluid matrix collected using the Quantisall™ (Immunalysis) device, prior to GC/MS analysis.

In gel permeation chromatography (GPC), just like all chromatography modes, the heart of the separation lies in the quality, applicability and selectivity, or resolution, of the column.

The need to increase the use of low valued co-products derived from the processing of sugar beets has prompted the investigation of the structure of the pectin extracted from sugar beet pulp.

For polymeric materials the molar mass and molar mass distribution play a vital role in the determination of mechanical, bulk, and solution properties

New roles and applications in the areas of science and technology are continuously being found for synthetic polymers.

Isocyanates are both highly reactive and highly toxic low molar mass chemicals.

This Application Note presents data obtained from a series of poly-b-alkylalanoids synthesized by Dr. Li Jia, which were obtained using living alternating copolymerization of N-alkylaziridines and carbon monoxide5.

Analyzing blood serum for opioids, cocaine and their metabolites commonly involves manual or partly-automated sample preparation steps such as protein precipitation, solid phase extraction, evaporation and derivatization before GC/MS or LC/MS determination. The process can now be fully automated.

Hydrogen generators are now becoming an essential component in many laboratories with greater gas consumption levels. Most people are aware that hydrogen gas is produced from electrolysis of water, but is it as simple as that and why are generators so expensive?