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Identification of a Novel Metabolite in the Degradation of Pyrene by Mycobacterium sp. Strain AP1: Actions of the Isolate on Two- and Three-Ring Polycyclic Aromatic Hydrocarbons
The catabolic versatility of strain AP1 and its use ofortho cleavage mechanisms during the degradation of polycyclic aromatic hydrocarbons (PAHs) give new insight into the role that pyrene-degrading bacterial strains may play in the environmental fate of PAH mixtures. Expand
Metabolism of fluoranthene by Mycobacterium sp. strain AP1
The identification of Z-9- carboxymethylenefluorene-1-carboxylic acid (I) suggests a third route for fluoranthene degradation involving dioxygenation at C-2, C-3, and ortho cleavage, which would connect both routes with the central metabolism. Expand
Enantiomeric separation of drugs and herbicides on a beta-cyclodextrin-bonded stationary phase.
The column showed good chiral recognition ability for most of the solutes tested when using heptane and either 2-propanol or chloroform as organic mobile phase modifiers. Expand
Hydrogen separation and purification using polysulfone acrylate–zeolite mixed matrix membranes
Abstract Mixed matrix membranes were prepared from derivatized polysulfone and zeolite particles. Aminopropyltrimethoxysilane was used as coupling agent to covalently link zeolite particles with theExpand
Covalently bonded polysaccharide derivatives as chiral stationary phases in high-performance liquid chromatography.
Polysaccharide derivatives have been extensively used as chromatographic chiral selectors in chiral stationary phases (CSPs) for the separation of enantiomers by HPLC, but they are only compatible with a limited choice of solvents, which limits their applicability. Expand
3,5-Dimethylphenylcarbamates of amylose, chitosan and cellulose bonded on silica gel: Comparison of their chiral recognition abilities as high-performance liquid chromatography chiral stationary
Mixed 10-undecenoyl/3,5-dimethylphenylaminocarbonyl derivatives of amylose and chitosan were prepared and immobilized on allylsilica gel. The enantioselectivities of the resulting supports wereExpand
The chromatographic separation of enantiomers through nanoscale design.
This tutorial review describes the state of the art in the application of nanoparticles or nanostructured materials to enantioseparation and the possibilities for this kind of materials, previously modified to include conventional chiral selectors, or the use as chiralSelectors of those intrinsically chiral are considered. Expand
Solvent versatility of bonded cellulose-derived chiral stationary phases for high-performance liquid chromatography and its consequences in column loadability
The chromatographic behaviour of a 10-undecenoate/3,5-dimethylphenylcarbamate of cellulose bonded on allylsilica gel is tested using four organic mobile-phase modifiers (2-propanol, chloroform,Expand
Carbamates of cellulose bonded on silica gel: Chiral discrimination ability as HPLC chiral stationary phases
Four cellulose mixed 10-undecenoate/carbamate derivatives, simultaneously bearing 10-undecenoyl and variously substituted phenylaminocarbonyl groups, were chemically bonded on allylsilica gel. TheExpand
Characterization of doubly substituted polysaccharide derivatives.
Derivatives of cellulose, amylose and chitosan, bearing simultaneously 10-undecenoyl and arylaminocarbonyl or benzoyl groups were characterized by the combined use of 1H NMR and elemental analysis.Expand