نتایج جستجو برای: celite
تعداد نتایج: 228 فیلتر نتایج به سال:
An anticoagulant activity from adult Schistosoma mansoni whole worm homogenate is described. The inhibitor appears to be specific for the contact activation step of the intrinsic pathway. Experiments with both human and mouse plasmas have defined the specificity of the inhibitor as follows: (1) It lengthens the partial thromboplastin time of normal plasma. (2) It has no effect on the prothombin...
Celite immobilized Lipase 4, an isoenzyme of commercial Candida rugosa lipase (CRL) obtained from the fungus, Candida rugosa has been catalyzed alcoholysis in dry ethanol of various triglycerides and soybean oil. The advantages of this process are that separation of the product is very easy and no additional solvent is required as alcohol acts both as a reactant and medium. The yield of monogly...
fatemeh karimi tabar was born in asadabad/hamedan (iran) in 1986. she completed her b.sc. in chemistry in 2008 from bu-ali sina university, hamedan, iran. she was graduated from m.sc. degree in organic chemistry from shiraz university 2010, shiraz, iran. she is currently organic chemistry ph.d student under the supervision of prof. m.a. zolfigol and prof. a. khazaei in department of chemistry a...
We tested the accuracy of radioimmunoassays for two hormones, progesterone and estradiol, in relation to the use of two different antisera in each assay and to the degree of purification from plasma before the assay was done. Each analyte was assayed either in a diethyl ether extract, in a zone eluted from a Sephadex LH-20 chromatographic column, or in fractions of a chromatographic zone (from ...
Abstract The effects of different absorbent types on changes in benzo[ a ]pyrene (BaP) and volatiles sesame oil during filtration processes were investigated using gas chromatography–mass spectrometry analysis. BaP content was greatly reduced after powdered activated carbons (activated carbon made from peat: PP, coconut shell: PC, wood: PW) comparison to granular GC, GW). also considerably when...
recoveries of 49 mg (23%), 56 mg (25%), 18 mg (10%), and 6 mg (50%), respectively. Thus, the official method of filtration resulted in an average loss of oil and grease of 25% of the values determined by the proposed method. Two effluents (3 and 4) were precipitated by the method in this paper but extracted by the Soxhlet method and gave 16 and 5% low values, respectively. In addition, contamin...
(28 mg, 24 µmol) was dissolved in a mixture of ethanol (2 mL) and water (1 mL). Pd/C 10% (12 mg) was added and the solution was stirred. Vacuum and H 2 were alternated and the mixture was allowed to stir under H 2 overnight. The mixture was filtered off through Celite and concentrated. The residue was dissolved in water and filtered through a 0.45 µm syringe filter and concentrated. The residue...
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