137790

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Biodegradable injectable in situ implants and microparticles for sustained release of montelukast: in vitro release, pharmacokinetics, and stability.

Tarek A Ahmed et al.

AAPS PharmSciTech, 15(3), 772-780 (2014-03-22)

The objective of this study was to investigate the sustained release of a hydrophilic drug, montelukast (MK), from two biodegradable polymeric drug delivery systems, in situ implant (ISI) and in situ microparticles (ISM). N-Methyl pyrrolidone (NMP), dimethyl sulfoxide (DMSO), triacetin

FT-IR product study of the reactions of NO3 radicals with ortho-, meta-, and para-cresol.

R I Olariu et al.

Environmental science & technology, 47(14), 7729-7738 (2013-06-12)

Product analyses of the NO3 radical-initiated oxidation of ortho-, meta-, and para-cresol have been performed in large-volume chamber systems at the University of Wuppertal (1080 L quartz glass reactor: QUAREC) and the European Photoreactor (EUPHORE), Valencia, Spain. The reaction of

Separated and aligned molecular fibres in solid state self-assemblies of cyclodextrin [2]rotaxanes.

Hideki Onagi et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 9(24), 5971-5977 (2003-12-18)

The conformations of two [2]rotaxanes, each comprising alpha-cyclodextrin as the rotor, a stilbene as the axle and 2,4,6-trinitrophenyl substituents as the capping groups, have been examined in solution and in the solid state, using (1)H NMR spectroscopy and X-ray crystallography

Mutagenic activities of a chlorination by-product of butamifos, its structural isomer, and their related compounds.

Masahiro Kamoshita et al.

Chemosphere, 78(4), 482-487 (2009-10-30)

The mutagenic activities of 5-methyl-2-nitrophenol (5M2NP), a chlorination by-product of butamifos, its structural isomer 2-methyl-5-nitrophenol (2M5NP), and related compounds were evaluated by the Ames assay. The mutagenic activities of 5M2NP and 2M5NP were negative or not particularly high. However, those

Dispersive liquid-liquid microextraction for the determination of nitrophenols in soils by microvial insert large volume injection-gas chromatography-mass spectrometry.

J I Cacho et al.

Journal of chromatography. A, 1456, 27-33 (2016-06-19)

A rapid and sensitive procedure for the determination of six NPs in soils by gas chromatography and mass spectrometry (GC-MS) is proposed. Ultrasound assisted extraction (UAE) is used for NP extraction from soil matrices to an organic solvent, while the

Determination of nitrophenols in environmental samples using stir bar sorptive extraction coupled to thermal desorption gas chromatography-mass spectrometry.

Marta Pastor-Belda et al.

Talanta, 189, 543-549 (2018-08-09)

This paper presents a procedure for the determination of seven nitrophenols (NPs) in water and soil samples using stir bar sorptive extraction (SBSE) coupled to gas chromatography with mass spectrometry (GC-MS) by means of a thermal desorption unit (TDU). Microwave

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