High impact information on Spectrophotometry, Ultraviolet

• 5-Aminosalicylic acid, the therapeutically active metabolite of sulfasalazine, was exposed to oxygen-derived free radicals produced by the Fenton reaction in vitro, and several metabolites were detected and characterized by high performance liquid chromatography and ultraviolet spectrophotometry [1].
• Wild-type and mutant FMO3, heterologously expressed in a baculovirus-insect cell system, were assayed by ultraviolet spectrophotometry and NMR spectroscopy for their ability to catalyse the N-oxidation of TMA [2].
• We present an improved method for ultraviolet spectrophotometry of theophylline in serum [3].
• Interference of diphylline in the ultraviolet spectrophotometry of therophylline [4].
• Reaction conditions and methods have been developed for preparing pure semi-synthetic and fully active N6-(6-carbamoylhexyl)-FAD-D-amino acid oxidase that contains 1 covalently bound FAD analogue/subunit, as verified by redialysis, ultraviolet spectrophotometry, electrospray ionization (ESI)-MS and peptide mapping [5].

Biological context of Spectrophotometry, Ultraviolet

• Deuteration kinetics of deoxyguanosine, deoxycytidine, and their polynucleotides by means of ultraviolet spectrophotometry [6].
• Determination of serum acetaminophen in emergency toxicology: evaluation of newer methods: Abbott TDx and second derivative ultraviolet spectrophotometry [7].

Anatomical context of Spectrophotometry, Ultraviolet

• Membrane-buffer partition coefficients of tetracaine for liquid-crystal and solid-gel membranes estimated by direct ultraviolet spectrophotometry [8].

Associations of Spectrophotometry, Ultraviolet with chemical compounds

• Determination of ascorbic acid in pharmaceuticals using direct ultraviolet spectrophotometry [9].
• Ultraviolet spectrophotometry for the determination of benperidol by a difference procedure and for the elucidation of its polymorphic structures [10].
• Determination of ethacrynic acid in pharmaceutical formulations by difference ultraviolet spectrophotometry after derivatisation with N-acetylcysteine [11].
• Analysis of trifluralin and other dinitroaniline herbicide residues by zero-order and derivative ultraviolet spectrophotometry [12].
• Determination of fusidic acid and sodium fusidate in pharmaceutical dosage forms by first-derivative ultraviolet spectrophotometry [13].

Gene context of Spectrophotometry, Ultraviolet

• Colonic activities of nitric oxide (NO) and superoxide dismutase (SOD), levels of malondialdehyde (MDA) and inducible nitric oxide synthase (iNOS) were determined by ultraviolet spectrophotometry [14].
• RATIONALE: The enzyme theophylline oxidase is used in this assay kit to convert theophylline to 1,3 dimethyluric acid in the presence of cytochrome C. Cytochrome C is reduced to ferrocyte C, which is then measured by ultraviolet spectrophotometry at one minute and again at five minutes [15].
• Determination of ascorbic acid in soft drinks and fruit juices. Part 1. Background correction for direct ultraviolet spectrophotometry [16].
• Colonic activities of myeloperoxidase (MPO) and superoxide dismutase (SOD), and levels of malondialdehyde (MDA) and nitric oxide (NO) were assayed with ultraviolet spectrophotometry [17].
• Second derivative ultraviolet spectrophotometry results demonstrated good correlation with high pressure liquid chromatographic results in patient sera; r2 = 0.923, n = 40; however, performance deteriorated below 50.0 mg/L acetaminophen [7].

Analytical, diagnostic and therapeutic context of Spectrophotometry, Ultraviolet

• The amide formed in urine has been compared to synthetically prepared 2-(4-chlorophenoxy)-2-methylpropanamide by gas chromatography, thin layer chromatography, ultraviolet spectrophotometry, infrared spectrophotometry, and mass spectrometry with complete correspondence of chemical properties [18].
• 4. Proteins in homogenate were fractionated by the addition of ammonium sulfate and centrifugation, separated by Sephadex chromatography, and measured by ultraviolet spectrophotometry at A280 [19].
• The analytical method for the SCG determination consisted of ultraviolet spectrophotometry and, for the lactose, high performance liquid chromatography with refractive index detection was used [20].

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