نتایج جستجو برای: methanol concentration
تعداد نتایج: 407058 فیلتر نتایج به سال:
We estimated kinetic parameters associated with methanol disposition in humans from data reported in the literature. Michaelis-Menten elimination parameters (Vmax = 115 mg/L/hr; Km = 460 mg/L) were selected for input into a semi-physiologic pharmacokinetic model. We used reported literature values for blood or urine methanol concentrations in humans and nonhuman primates after methanol inhalati...
Background: Herbal distillates had been used for many centuries as herbal medicine in Traditional Persian medicine. Recently, some studies claimed the presence of methanol in different types of herbal distillates which can cause different complications or even death as methanol is highly toxic. The main purpose of this study was to determine methanol content in the commonly-used industrial herb...
The duration of hemodialysis (HD) in methanol poisoning (MP) is dependent on the methanol concentration, the operational parameters used during HD, and the presence and severity of metabolic acidosis. However, methanol assays are not easily available, potentially leading to undue extension or premature termination of treatment. Here we provide a prediction model for the duration of high-efficie...
The lipases of the Rhizopus species family are important and versatile enzymes that are mainly used in fat and oil modification due to their strong 1,3-regiospecificity. Inexpensive synthetic medium was used for the production of Rhizopus oryzae lipase in the methylotrophic yeast Pichia pastoris. Methanol accumulation inside the bioreactor has previously been shown to negatively influence the p...
background & aim:vaginal disease has always been a great concern of women. medicinal plants as natural resources with fewer side effects can effectively treat these infections given the diversity of these infections, resistance to antibiotics and side effects of existing drugs. the present study aimed to compare antimicrobial effects of methanol extract of francoeuria undulata on growth of seve...
Direct methanol fuel cells (DMFC) are getting increasing attention as a possible power source for application in the field of power electronics where the energy requirements are relatively small. The major advantage of the DMFC is their high energy density in comparison to the conventional batteries. In this study, the performance of a passive direct methanol fuel cell was investigated under fi...
The results of research carried out on rats, assessing the influence of chronic intoxication with ethanol, methanol, and ethylene glycol on hydrogen peroxide concentration in internal organs – brain, lungs, liver, kidney, and heart – are presented in this paper. It was shown that the organ most exposed to the detrimental activity of ethanol, methanol, and ethylene glycol is the heart: the great...
Recently, pervaporation separation processes have gained much attention in the separation of azeotropic and close boiling point organic-organic mixtures due to its high separation efficiency, economy, safety, and energy saving potentials. In this work, the effects of experimental factors such as feed composition and operating temperature on the performance of a commercial poly vinyl alcohol mem...
Objective(s) Herbal waters are extensively used in most parts of Iran including Mashhad. Visiting a patient with total blindness due to daily ingestion of around 200 ml of herbal water (Plant forty water) per day for six months was the rational for methanol determination in all herbal waters available in Mashhad markets. Materials and Methods A total of two hundred and nineteen bottles of he...
The subcritical fluid extraction of lovastatin from tablet powder mixtures prepared in this laboratory and MEVACOR tablets is successfully demonstrated. Methanol modifier percentage, additive type (acidic, basic, or neutral), and additive concentration on the extraction efficiency are examined. The extraction recoveries of lovastatin from MEVACOR tablets are shown to be highly dependent on meth...
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