English Journal

Fast liquid chromatography/tandem mass spectrometry determination of cannabinoids in micro volume blood samples after dabsyl derivatization.

Lacroix C1, Saussereau E.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.J Chromatogr B Analyt Technol Biomed Life Sci.2012 Sep 15;905:85-95. doi: 10.1016/j.jchromb.2012.08.006. Epub 2012 Aug 13.
Due to the non-polar nature and the absence of an ionizable group on the cannabinoids, the ionization efficiency in electrospray is low and leads to poor limits of detection (LOD). The reaction of chloride dabsyl with the phenolic OH group of cannabinoids results in a product containing a tertiary a
PMID 22921635

Determination of theanine, GABA, and other amino acids in green, oolong, black, and Pu-erh teas with dabsylation and high-performance liquid chromatography.

Syu KY1, Lin CL, Huang HC, Lin JK.
Journal of agricultural and food chemistry.J Agric Food Chem.2008 Sep 10;56(17):7637-43. doi: 10.1021/jf801795m. Epub 2008 Jul 25.
Dabsyl chloride (dimethylaminoazobenzene sulfonyl chloride), a useful chromophoric labeling reagent for amino acids and amines, was developed in this laboratory in 1975. Although several methods have been developed to determine various types of amino acids, a quick and easy method of determining the
PMID 18652476

Parasitoid wasp sting: a cocktail of GABA, taurine, and beta-alanine opens chloride channels for central synaptic block and transient paralysis of a cockroach host.

Moore EL1, Haspel G, Libersat F, Adams ME.
Journal of neurobiology.J Neurobiol.2006 Jul;66(8):811-20.
The wasp Ampulex compressa injects venom directly into the prothoracic ganglion of its cockroach host to induce a transient paralysis of the front legs. To identify the biochemical basis for this paralysis, we separated venom components according to molecular size and tested fractions for inhibition
PMID 16673394