Showing 1-16 of 16 results for "

tppo

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Biao Chen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 63(2), 289-294 (2005-06-28)
The absorption and fluorescence spectra of Pr(DBM)3(TPPO)2 (DBM: dibenzoylmethane, TPPO: triphenylphosphine oxide) containing poly(methyl methacrylate) (PMMA) were measured. The energy levels are assigned and analyzed in terms of the free-ion Hamiltonian model. From the data available in the absorption spectrum...
KyoungLang Haack et al.
Molecular diversity, 9(4), 301-303 (2005-11-29)
Ruthenium byproducts from ring-closing metathesis reactions can be removed by refluxing the crude reaction mixture with resin-bound triphenylphosphine oxide (TPPO) in toluene or by stirring with dimethyl sulfoxide (DMSO) and silica gel at room temperature. Residual levels of ruthenium can...
Richard J Emery et al.
Environment international, 31(2), 207-211 (2005-01-22)
The degradation of triphenylphosphine oxide (TPPO) in water, a toxic compound typically found in effluents from the pharmaceutical industry, by means of ultrasonic irradiation at 20 kHz has been investigated with emphasis on the effect of various parameters on conversion...
R Kyle Palmer et al.
Assay and drug development technologies, 8(6), 703-713 (2010-12-17)
Transient receptor potential melastatin-5 (TRPM5) is a calcium-gated monovalent cation channel expressed in highly specialized cells of the taste bud and gastrointestinal tract, as well as in pancreatic β-cells. Well established as a critical signaling protein for G protein-coupled receptor-mediated...
Stephen M Richoll et al.
Journal of chromatography. A, 1127(1-2), 147-153 (2006-07-04)
A versatile procedure has been developed and validated for the determination of triphenylphosphine oxide (TPPO) at low levels in various active pharmaceutical ingredients (APIs). This procedure incorporates the use of the novel hollow-fiber liquid-phase microextraction (LPME) for the measurement of...
Steiner
Acta crystallographica. Section C, Crystal structure communications, 56 (Pt 8), 1033-1034 (2000-08-16)
In the crystalline 1:1 molecular complex of triphenylmethanol (TPMeOH) and triphenylphosphine oxide (TPPO), C(19)H(16)O. C(18)H(15)OP, molecular dimers are formed which are linked by O-H. O=P hydrogen bonds. The dimers are aligned by sixfold phenyl embraces to form columns. The structure...
Zhao-Ye Li et al.
Guang pu xue yu guang pu fen xi = Guang pu, 29(11), 2904-2908 (2010-01-28)
Eight complexes of europium and terbium were synthesized, with 2-(4-chloro-benzoyl)benzoic acid as an essential ligand and other three distinct ligands, including 1, 10-phenanthroline, triphenylphosphine oxide and diphenyl sulfoxide, as selective ligands. They were Eu(CBBA)3 (H2O)4, Eu(CBBA)3 (Phen) (H2O)6, Eu(CBBA)3 (TPPO)...
Yinlei Yu et al.
International journal of biological macromolecules, 127, 210-221 (2019-01-15)
In this work, rare earth europium was combined with different organic ligands to obtain two kinds of rare earth conversion agents, Eu(DBM)4CPC and Eu(TTA)3(TPPO)2. Two kinds of conversion films were successfully prepared by combining them with polylactide and poly(butylene adipate-co-terephthalate)....
Kunyan Cui et al.
Chemosphere, 175, 514-520 (2017-03-04)
67 soil samples from the road greenbelts, the paddy/vegetable fields, the parks, the commercial and residential areas in the subtropical city, Guangzhou, China, were collected and analyzed for 11 organophosphate esters (OPEs) and triphenylphosphine oxide (TPPO). OPEs were detected in...
S Takeda et al.
Anticancer research, 13(1), 193-199 (1993-01-01)
We have investigated the nature of lipid peroxidation occurring in association with cancer-killing produced by gamma-linolenic acid (GLA) and iron (Fe) in cultured human breast cancer cells (ZR-75-1: ZR). UV-spectrophotometry, high performance liquid chromatography (HPLC) and gas chromatography (GC) or...
Patrick J Hubbard et al.
The Journal of chemical physics, 152(5), 054718-054718 (2020-02-10)
Triphenylphosphine oxide (TPPO, 1) has been adsorbed on neutral alumina by dry grinding of the components in the absence of a solvent. The adsorption proves translational mobility of 1 on the surface of alumina. Different surface coverages from a densely...
Mohammad Amin Mir et al.
Journal of colloid and interface science, 364(1), 163-169 (2011-09-13)
Solubilization and co-solubilization of triphenyls (TPs) viz., triphenylphosphine (TPP), triphenylphosphineoxide (TPPO), triphenylamine (TPA) and triphenylmethanol (TPM) were studied in various single and binary surfactant systems at 25 °C using UV-visible spectroscopy and HPLC. The solubilization capacities of different micelles towards...
Odei Garcia-Garin et al.
Chemosphere, 252, 126569-126569 (2020-03-30)
Plastic litter pollution is increasing in the seas and oceans worldwide, raising concern on the potential effects of plasticizer additives on marine fauna. In this study, muscle samples of 30 bogues (Boops boops; Linneaus, 1758) from the North Western Mediterranean...
Wenjia Zhang et al.
Langmuir : the ACS journal of surfaces and colloids, 35(22), 7231-7241 (2019-05-24)
Interactions of nonionic poly(ethylene oxide)- b-poly(propylene oxide) (PEO-PPO) block copolymers, known as Pluronics or poloxamers, with cell membranes have been widely studied for a host of biomedical applications. Herein, we report how cholesterol within phosphatidylcholine (POPC) lipid bilayer liposomes and...
Yongqing Ma et al.
Analytica chimica acta, 786, 47-53 (2013-06-26)
An analytical method for the determination of 14 organophosphorus flame retardants (OPFRs), including halogenated OPFRs, non-halogenated OPFRs and triphenyl phosphine oxide (TPPO) in biological samples was developed using gas chromatography-mass spectrometry (GC/MS). Biological samples were extracted using microwave-assisted extraction (MAE)...
Alexander P Cherkashin et al.
Pflugers Archiv : European journal of physiology, 468(2), 305-319 (2015-11-05)
Specialized Ca(2+)-dependent ion channels ubiquitously couple intracellular Ca(2+) signals to a change in cell polarization. The existing physiological evidence suggests that Ca(2+)-activated Cl(-) channels (CaCCs) are functional in taste cells. Because Ano1 and Ano2 encode channel proteins that form CaCCs...