Formation of N-Nitrosodimethylamine from Naturally Occurring Quaternary Ammonium Compounds and Tertiary Amines

A new naturally occurring polyamine containing a quaternary ammonium nitrogen.

A new polyamine, tetrakis(3-aminopropyl)ammonium, N+ (CH2CH2CH2NH2)4, was identified in cells of an extreme thermophile, Thermus thermophilus. This compound was chemically synthesized and its chemical properties were coincident with those of the amine isolated from the thermophile.

SOA formation from tertiary amines

Secondary organic aerosol formation from reaction of tertiary amines with nitrate radical M. E. Erupe, D. J. Price, P. J. Silva, Q. G. J. Malloy, L. Qi, B. Warren, and D. R. Cocker III Department of Chemistry and Biochemistry, Utah State University, Logan, UT, USA Department of Chemical and Environmental Engineering and College of Engineering, Center for Environmental Research and Technology (C...

Interactions of Quaternary Ammonium Compounds and Proteins

A simple met.hod of titration with a cationic detergent has been developed which permits rapid estimation of the concentration of urinary protein with a minimum of manipulations and time. The method depends on the formation of an insoluble anion-cation complex between quaternary ammonium ions, hereinafter referred to as the cationic detergent, and proteins, in the present instance mainly human ...

Quantitation and purification of quaternary ammonium compounds from halophyte tissue.

A simple and sensitive spectrophotometric assay for quaternary ammonium compounds (QACs) based on Dragendorff's reagent is described. Although not specific for a particular QAC, the assay allows for rapid survey of tissue for QAC content. A separation method for QACs in halophyte tissue containing high levels of cations was developed using ion exchange resins and ninhydrin to remove the amino a...

The Electroreduction of Quaternary Ammonium Compounds