نتایج جستجو برای: liquid fluorine

تعداد نتایج: 224702  

Journal: :Magnetic resonance in chemistry : MRC 2014
Guilherme Dal Poggetto Denize C Favaro Mathias Nilsson Gareth A Morris Cláudio F Tormena

NMR is a powerful method for identification and quantification of drug components and contaminations. These problems present themselves as mixtures, and here, one of the most powerful tools is DOSY. DOSY works best when there is no spectral overlap between components, so drugs containing fluorine substituents are well-suited for DOSY analysis as (19)F spectra are typically very sparse. Here, we...

2007
Geoffrey A. Landis

Oxygen, metals, silicon, and glass are raw materials that will be required for long-term habitation and production of structural materials and solar arrays on the Moon. A process sequence is proposed for refining these materials from lunar regolith, consisting of separating the required materials from lunar rock with fluorine. The fluorine is brought to the Moon in the form of potassium fluorid...

2018
Matic Resnik Rok Zaplotnik Miran Mozetic Alenka Vesel

The fluorination of the polymer polyethylene terephthalate in plasma created from SF₆ or CF₄ gas at various pressures was investigated. The surface was analysed by X-ray photoelectron spectroscopy and water contact angle measurements, whereas the plasma was characterized by optical emission spectroscopy. The extent of the polymer surface fluorination was dependent on the pressure. Up to a thres...

2013
Jin-Suk Seo Jun-Hyuck Jeon Young Hwan Hwang Hyungjin Park Minki Ryu Sang-Hee Ko Park Byeong-Soo Bae

Transparent flexible fluorine-doped indium zinc oxide (IZO:F) thin-film transistors (TFTs) were demonstrated using the spin-coating method of the metal fluoride precursor aqueous solution with annealing at 200°C for 2 hrs on polyethylene naphthalate films. The proposed thermal evolution mechanism of metal fluoride aqueous precursor solution examined by thermogravimetric analysis and Raman spect...

Journal: :Jurnal Penelitian Pendidikan IPA (JPPIPA) 2022

The purpose of this study is to analyze the quality optical properties such as energy band gap thin layer tin oxide doped with aluminum, fluorine, indium, aluminum-fluorine, aluminum-indium, and aluminum-fluorine-indium. was synthesized using sol-gel spin coating method. ratio basic ingredients doping used in 95:5% 85:15%. that has been formed then heated at a temperature 100 200 0C. results an...

Journal: :Bulletin of the Chemical Society of Japan 1961

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