This application note examines the use of coulometric array detection
with HPLC using a C30 stationary phase for analysis of isomeric forms of
carotenoids in animal and plant tissues. HPLC coulometric array ECD can
be used both as a complementary a[[...
Protein diversity in biological systems is quite large, but short term
(<1hour) changes due to a particular stimulus will cause A only subtle
changes in very specific proteins expression levels. Excessive sample
handling/processing methods often add ...
Ingestion of toxin contaminated food (or food supplements) is
responsible for a variety of aggressive, debilitating and often lethal
diseases. Many of the toxins are highly modified amino acids or amines
and include domoic acid (causing amnesic shell...
Yohimbine is an indolealkylamine alkoloid with chemical similarity to
reserpine. Yohimbine has been isolated from Cornanthe johimbe, Rubiaceae
and related trees, as well as Rauwolfia serpentina. Both yohimbine and a
diastereoisomer, corynanthine, are...
The vinca alkaloids consist of the bis-indole derivatives, vinblastine
and vincristine isolated from the periwinkle plant, Vinca rosea Linn and
the monomeric indole derivative vincamine, which is the major alkaloid
of Vinca minor Linn. The vinca alka...