نتایج جستجو برای: methanol concentration

تعداد نتایج: 407058  

Journal: :iranian red crescent medical journal 0
maryam pezeshki najafabadi department of biology, ashkezar branch, islamic azad university, ashkezar, iran maryam mohammadi-sichani department of microbiology, falavarjan branch, islamic azad university, isfahan, iran; islamic azad university, falavarjan, isfahan, iran. tel: +98-9133092823 mohammad javad kazemi department of biology, ashkezar branch, islamic azad university, ashkezar, iran mohammadsadegh shirsalimian faculty of basic sciences, north tehran branch, islamic azad university, tehran, iran majid tavakoli lorestan agricultural and natural resources research center, khorramabad, iran

results the isolates were completely resistant to the tested antibiotics, with minimum inhibitory concentration (mic) values for ceftazidime, imipenem, and gentamicin between 256 to > 256 μg/ml, 8 to > 256 μg/ml, and 64 to > 256 μg/ml, respectively. the r. dentatus extract had a broad spectrum activity against all tested isolates and maximum growth inhibition against isolates from burn wound an...

Journal: :The journal of physical chemistry. A 2008
Lisa L Van Loon Heather C Allen

The uptake of methanol at the air-liquid interface of 0-96.5 wt % sulfuric acid (H2SO4) solutions has been observed directly using vibrational sum frequency generation (VSFG) spectroscopy. As the concentration of H2SO4 increases, the VSFG spectra reveal a surface reaction between methanol and H2SO4 to form methyl hydrogen sulfate. The surface is saturated with the methyl species after 15 min. T...

Amir Rahimirad, Hassan Hassanzadazar, Ali Hamzehzadeh, Danesh Mohammadi, Mohammad Delirrad, Shirin Forouzan, Yaghoub Roshani, Zahra Ghasempour,

ABSTRACT Background: Herbal distillates have been used for many centuries as drinks, flavors, and herbal medicine in Iran, especially in the city of Urmia. Recently, some studies claimed the presence of methanol in different types of herbal distillates. Methanol is a highly toxic compound which can cause acute or chronic toxicity in humans. Acute poisoning with methanol can cause different co...

Journal: :Environmental microbiology 2012
Kimberly H Halsey Amy E Carter Stephen J Giovannoni

The 1.3 Mbp genome of HTCC2181, a member of the abundant OM43 clade of coastal bacterioplankton, suggested it is an obligate methylotroph. Preliminary experiments demonstrated that methanol and formaldehyde, but not other common C1 compounds such as methylamine, could support growth. Methanol concentrations in seawater are reportedly < 100 nM, suggesting either that the flux of methanol through...

2005
Danica Lister Michael Tierney Garth Dickinson

Background: The management of methanol and ethylene glycol poisoning includes inhibition of alcohol dehydrogenase by IV ethanol therapy or fomepizole. There is a lack of contemporary information on IV administration of ethanol in this setting. Objective: To evaluate the effectiveness of IV ethanol therapy in combination with hemodialysis for the treatment of methanol and ethylene glycol poisoni...

2005
Abdul Wahab Sekh Mahiuddin

This paper reports the results of a variety of experiments carried out for understanding the solvation behavior of potassium thiocyanate in methanol–water mixtures. Electrical conductivity, speed of sound, viscosity, and FT-Raman spectra of potassium thiocyanate solutions in 5 and 10% methanol–water (w/w) mixtures were measured as functions of concentration and temperature. The conductivity and...

Journal: :jundishapur journal of microbiology 0
ali akbarzadeh applied microbiology research center, baqiyatallah university of medical sciences, tehran, ir iran ehsan dehnavi gene transfer pioneers research group, shahid beheshti university, tehran, ir iran mojtaba aghaeepoor gene transfer pioneers research group, shahid beheshti university, tehran, ir iran; semnan biotechnology research center, semnan university of medical sciences, semnan, ir iran jafar amani applied microbiology research center, baqiyatallah university of medical sciences, tehran, ir iran; applied microbiology research center, baqiyatallah university of medical sciences, vanak sq, molasadra st, p. o. box: 193955487, tehran, ir iran. tel: +98-2182482568, fax: +98-2188068924

results escherichia coli phytase was expressed in p. pastoris under different cultivation conditions (post-induction temperature, methanol concentration, and post-induction ph). the optimized conditions by rsm using face centered central composite design were 1% (v/v) methanol, ph = 5.8, and 24.5°c. under the optimized conditions, appa was successfully expressed in p. pastoris and the maximum p...

Journal: :iranian chemical communication 2015
mehdi foruzani abbas ali dehpour mahla musavi

abstract stachys is one of the largest genera in the flowering plant family. it is in the subfamily lamioideae (labiatae), spreading and growing in different parts of iran. the purpose of this study was to investigate the chemical properties of stachyslavandulifolia as well as the essence, ethanol and methanol extracts of this plant. it was collected from chulus located in the west of mazandara...

2004
E. Forgács T. Cserháti O. Farkas A. Eckhardt I. Miksik Z. Deyl

The interaction between non-ionic surfactants and cholesterol has been studied by reversed-phase thin-layer chromatography (RP-TLC) using cholesterol impregnated TLC plates and methanol–water mixtures as mobile phases. The RM values obtained were in linear correlation with the methanol concentration of the mobile phase. The intercept obtained from linear regression analysis (RM0), being charact...

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