Three phase partitioning, a method generally used for protein separation, has been evaluated for extraction of oil from soybean. 82% oil was extracted within 1 h using this process which required simultaneous addition of t-butanol (1:1, v/v) and 30% ammonium sulphate to the soybean slurry.

The title ionic compound, C16H36N(+)·C10H20B10N3O3(-), consists of a tetra-butyl-ammonium cation and a closo-deca-borate cluster anion, which is bound to the substituted 2,3-dihydro-1,2,4-oxadiazole ring through a B-N bond [1.540 (2) Å]. The distances between connected B atoms in the deca-borate cluster range from 1.689 (2) to 1.844 (2) Å. The 2,3-dihydro-1,2,4-oxadiazole ring adopts an envelop...

p-tert-Butylcalix[8]arene-octaacetic acid octaethyl ester and calix[8]arene-octaacetic acid octaethyl ester well recognized 2-phenylethylamine and phenylalanine methyl ester compared with the corresponding calix[6]arene derivatives. Moreover, the calix[8]arene derivatives, especially one having tert-butyl groups, gave better selectivity against biologically active amines having a complicated st...

Abstract. Here we reported the effect of fluoride-based salt etching in synthesis Ti3C2 MXene by Ti3AlC2 MAX phase precursor. Lithium fluoride (LiF) and ammonium were salts chosen as an agent this study. The optimum etchant concentration temperature evaluated. presence aluminium etched was determined using Inducted Couple Plasma Optical Emission Spectrometry (ICP-OES). initial precursor estimat...

A simple, rapid "high-performance" liquid-chromatographic procedure is presented for the determination of aminoglutethimide in plasma. After precipitation of the protein with acetonitrile, an aliquot of the supernate is injected directly onto a radially compressed, reversed-phase column. The aminoglutethimide is isocratically eluted with a mobile phase of acetonitrile/water/tert-butyl ammonium ...

Mixed nano iron oxides powder containing goethite (α-FeOOH), hematite (α-Fe(2)O(3)) and ferrihydrite (Fe(5)HO(8)·4H(2)O) was synthesized through surfactant mediation-precipitation route using cetyltrimethyl ammonium bromide (CTAB). The X-ray diffraction, FTIR, TEM, Mössbauer spectroscopy were employed to characterize the sample. These studies confirmed the nano powder contained 77% goethite, 9%...

Tetra-n-butyl ammonium bromide (TBAB) was found to be an efficient phase-transfer catalyst for the synthesis of pyrido[2,3-d]pyrimidines by one-pot reaction of 6-aminouracils, aromatic aldehydes, and malononitrile or ethyl cyanoacetate in water under ultrasonic irradiation. The advantages of this method are the use of an inexpensive and readily available catalyst, short reaction time, easy work...

In the title compound, (C(16)H(36)N)[Fe(C(12)H(8)N(3)O(2))(CN)(3)]·2H(2)O, the tetra-n-butyl-ammonium ion has a tetra-hedral configuration around the N atom, while the Fe(III) atom of the tricyanido[N-(2-pyridyl-carbon-yl)pyridine-2-carboximidato]iron(III) anion adopts a distorted octa-hedral geometry. O-H⋯O and O-H⋯N hydrogen bonds link the components in the crystal structure.

The ability to manipulate the upconversion luminescence of lanthanide-ion doped fluoride upconversion nanoparticles (UCNPs) is particularly important and highly desired due to their wide applications in color displays, multiplexing bioassays and multicolor imaging. Here, we developed a strategy for simultaneously tuning color output and enhancing upconversion emission of Yb/Er doped fluoride UC...