نتایج جستجو برای: n butyl acetate

تعداد نتایج: 1025594  

Journal: :Journal of Electrical Engineering 2021

Abstract We present results on very thin NiO films which are able to detect 3 ppm of acetone, toluene and n-butyl acetate in synthetic air operate at 300°C. with 25 50 nm thicknesses were prepared by dc reactive magnetron sputtering alumina substrates previously coated Pt layers as heater interdigitated electrodes. Annealed indexed the (fcc) crystalline structure their calculated grain sizes ra...

Journal: :Acta Crystallographica Section E Structure Reports Online 2012

Journal: :Clinical chemistry 1964
J A CABEZAS J V PORTO

A simple spectrophotometric method is described for the sialic acids which utilizes the reaction with resorcinol and extraction with butyl acetate-n-butanol as a solvent. Normal values for adults, utilizing N-acetylneuraminic acid as a standard, were found to be 60 ± 10.4 mg./100 ml. Values for newborn babies averaged 40.4 ± 5.7. Similar values were found for specimens from 2-month-old infants ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1392

در این رساله اسانس گیاهان ذیل مورد بررسی و آنالیز قرار گرفتند: اسانس اجزاء گیاه leutea petiolare مورد آنالیز واقع گردید. ترکیبات اصلی اسانس گل عبارتنداز: beta-pinene(32.081)،fenchyl acetate (35.776) alpha- pinene(3.06), beta-eudesmol(5/236), از17ترکیب شناسائی شده دراسانس برگ عبارتنداز (6.952) sabinene،d-limonene (11/749)،beta-(e) ociemen (297.8) ، واز 12ترکیب شناسایی شده دراسانس ساقه ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2012

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :Chemical communications 2014
Hemanta K Kisan Raghavan B Sunoj

The mechanism of asymmetric amination of diazo-acetate by tert-butyl carbamate catalyzed by dirhodium tetra(trifluoro)acetate and chiral SPINOL-phosphoric acid is examined using DFT (M06 and B3LYP) computations. A cooperative participation of both catalysts is noticed in the stereo-controlling transition state of the reaction.

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