(n.) A tertiary amine analogous to trimethylamine.
Example Sentences:
(1) Acylation with benzoyl chloride and triethylamine in acetonitrile followed by hydrogenolysis with 10% palladium on carbon in trifluoroacetic acid gives O-benzoyl-L-serine, isolated as the hydrochloride salt.
(2) Chromatographic analysis of triethylamine-bovine serum albumin-disaggregated LPS showed a range of particle sizes.
(3) The lipid A-protein complexes were readily soluble in a water solution of triethylamine, in dimethyl sulfoxide, and in pyridine.
(4) After extraction from human plasma or urine, propanolol is reacted with one of these compounds in anhydrous organic solvents with addition of triethylamine.
(5) An ion-suppression separation technique is used with a macroporous polymer, poly(styrene divinylbenzene), stationary phase and a mobile phase of methanol--water with triethylamine, pH 11.
(6) Two volunteers were exposed to various airborne concentrations of triethylamine.
(7) An optimal composition of elution buffer was 25 mM potassium phosphate and 4% triethylamine adjusted to pH 6.5 with phosphoric acid.
(8) In the glycerol assay, glycerol is phosphorylated with [32P]ATP and glycerokinase, residual [32P]ATP is hydrolyzed by heating in acid, and free [32P]phosphate is removed by precipitation with ammonium molybdate and triethylamine.
(9) Separation was performed on a silica column (Supelcosil) with a mobile phase composed of 97.8% hexane, 2% isopropyl alcohol, and 0.2% triethylamine.
(10) After fruits, roots, or the mycelium of certain plants were treated with 2-(4-chlorophenylthio)-triethylamine hydrochloride, lycopene was detected in the tissue.
(11) An aliquot was injected on to a high-performance liquid chromatographic system using a C18 reversed-phase column and an acetonitrile-phosphate buffer containing triethylamine (30:70) as mobile phase.
(12) The chemistry utilizes 2% aqueous triethylamine as the coupling base which is delivered to the reaction cartridge via a stream of nitrogen.
(13) The prostanoids are eluted with methyl formate and further separated on a reversed-phase column using acetonitrile-acetic acid-triethylamine buffer (32:68).
(14) Proteins stained with Coomassie Blue can be hydrolyzed in situ after complete removal of the dye with an aqueous solution containing 40% acetone, 10% triethylamine and 5% acetic acid.
(15) ACC-9358 in the acidic extract was eluted from a Novapak C18 column using a 87:13:0.1 (by volume) mixture of phosphate buffer (pH 3.0), acetonitrile, and triethylamine as the mobile phase and measured at 280 nm.
(16) Disaggregation of wild-type and Re chemotype lipopolysaccharides (LPS) has been accomplished by solubilization with triethylamine followed by stabilization with bovine serum albumin in order to determine the degree of aggregation.
(17) The isocratic procedure utilizes a C18 column and a solvent of methanol-triethylamine phosphate (pH 5.1).
(18) Using a reverse-phase Nova-Pak C18 column and a 140 mM sodium acetate, 0.05% triethylamine (TEA), 6% acetonitrile solvent system, we obtained a complete separation of hydroxyproline.
(19) Treatment of acid addition salts of aminoglycoside-aminocyclitol antibiotics of the gentamicin-sisomicin class, with one equivalent of triethylamine and an acylating agent results in selective formation of 1-N-acyl derivatives.
(20) These compounds were generally prepared by conversion of an appropriate dicarboxylic acid to its anhydride with dicyclohexylcarbodiimide, then reaction with phosphatidylethanolamine (PE) and triethylamine, followed by acidification.
Trimethylamine
Definition:
(n.) A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.
Example Sentences:
(1) It is concluded that the variable N-oxidation of pinacidil is most likely to be due to variations in the activity of the P-450 isozymes rather than in the microsomal flavoprotein containing mixed-function amine oxidase of Ziegler which is considered to be responsible for the N-oxidation of trimethylamine.
(2) The metabolism and excretion of [14C]-trimethylamine has been investigated in seven strains of rat.
(3) In the same way, using the anti-trimethylamine-N-oxide reductase serum, rocket immunoelectrophoresis analyses were able to show that the inducible apoenzyme is not regulated by the fnr gene product and that molybdate does not seem necessary for the synthesis or stabilisation of this enzyme.
(4) A biosensor system based on the difference in the oxygen uptake response of two microbial electrodes was developed to monitor trimethylamine (TMA).
(5) Extracts of trimethylamine-grown W6A and W3A1 (type M restricted facultative methylotrophs) contain trimethylamine dehydrogenase whereas similar extracts of Bacillus PM6 and Bacillus S2A1 (type L restricted facultative methylotrophs) contain trimethylamine mono-oxygenase and trimethylamine N-oxide demethylase but no trimethylamine dehydrogenase.
(6) The pH, exuded liquid, consistency, soluble nitrogen, total volatile bases, trimethylamine, lipid oxidation by thiobarbituric acid test and microbial count were measured during the 60 days of the storage period.
(7) The study was aimed at determination of trimethylamine and n-butanol threshold concentrations of olfactory sensation under standard laboratory conditions.
(8) Corresponding values for three typical facultative methylotrophs growing on trimethylamine were 41, 42 and 52%.
(9) To evaluate this phenomenon for TMAO we have investigated the fate of the orally administered substance in healthy volunteers and in four subjects previously phenotyped as having an inherited deficiency with respect to the metabolic N-oxidation of trimethylamine (TMA).
(10) NaCN (10 microM) inhibited catabolism of acetate methyl groups to CH4 and CO2 but did not inhibit methanogenesis from methanol, CO2, methylamine, or trimethylamine.
(11) The preferential interactions of lysozyme with solvent components and the effects of solvent additives on its stability were examined for several neutral osmolytes: L-proline, L-serine, gamma-aminobutyric acid, sarcosine, taurine, alpha-alanine, beta-alanine, glycine, betaine, and trimethylamine N-oxide.
(12) Cells grown anaerobically on glycerol and fumarate displayed a similar response to pulses of DMSO, methionine sulfoxide, nitrate, and trimethylamine N-oxide with either glycerol or H2(g) as the electron donor.
(13) Trimethylamine is oxidized by phenazine methosulphate-linked dehydrogenase to dimethylamine and then to methylamine by NADPH-dependent mono-oxygenase.
(14) The Km value for DMSO was 15 microM, which was much lower than that for trimethylamin-N-oxide (TMAO), whereas Vmax with TMAO was larger than that with DMSO.
(15) Adsorption of hydrogen sulfide, methanethiol, methyl sulfide, trimethylamine, and ammonia on thirteen kinds of adsorbents (5 kinds of silicate, 4 kinds of activated carbon, and 4 kinds of zeolite) was measured by gravimetry, at 30 degrees C and 50 Torr, using an adsorption apparatus with a spring balance in order to find the most suitable adsorbent for the removal of these gases by dry process.
(16) In M. methylotrophus and bacterium W3A1, ETF and trimethylamine dehydrogenase were each expressed during growth on trimethylamine and were each absent during growth on methanol.
(17) Combinations of unlabelled and labelled formaldehyde and formic acid yielded symmetrically labelled trimethylamines of high isotopic purity.
(18) The trimethylamine value increased in different order than the histamine in the fish species.
(19) The distributions of methylamine, trimethylamine, acetic acid and trimethylacetic acid give calculated transmembrane pH gradients (pHe-pHi) for erythrocytes of between 0.14-0.21 for extracellular pH values of 7.28-7.16.
(20) Trimethylamine is oxidized to dimethylamine via trimethylamine N-oxide by monooxygenase and demethylase.