Spectrophotometric Determination of Tetramine in Carnivorous Gastropods with Tetrabromophenolphthalein Ethyl Ester

Autor:	Kouki Tanaka, Etsuo Mori, Mitsuji Saitou, Reiko Fujii, Naoko Moriwaki, Tokihiko Ogawa
Rok vydání:	1992
Předmět:	Tetramethylammonium chemistry.chemical_compound Chromatography chemistry Tetrabromophenolphthalein ethyl ester Ammonium General Medicine Tetramine
Zdroj:	Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi). 33:237-240_1
ISSN:	1882-1006 0015-6426
DOI:	10.3358/shokueishi.33.237
Popis:	An analytical method of tetramine (tetramethylammonium, TM) in the salivary gland of gastropods with tetrabromophenolphthalein ethyl ester (TBPE) as an ion-pairing counter-ion was developed.TM was extracted into 1, 2-dichloroethane with TBPE under strongly alkaline conditions. Other quaternary ammonium species and amines tested did not interfere with the determination of TM. The ion-associate showed an absorption maximum at 610nm. Recovery of TM-Cl from the salivary gland was 100.2±2.3% and the determination limit was 0.20mg/g.Contents of TM-Cl in the salivary gland of gastropods were in the range of 2.39-6.08mg/g
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fa7e69118cb7bf34aadc2fe02ab1b4a9 https://doi.org/10.3358/shokueishi.33.237 Zobrazit plný text záznamu