نتایج جستجو برای: se hplc
تعداد نتایج: 216982 فیلتر نتایج به سال:
As part of its 100th-anniversary celebration, the Pan American Health Organization has named 12 persons as "Public Health Heroes of the Americas" in recognition of their noteworthy contributions to public health in the Region of the Americas. Over the course of this year, the Revista Panamericana de Salud Pública/Pan American Journal of Public Health will be carrying pieces written by or about ...
this study was performed to determine the effect of injecting selenium into pregnant heifers at the last stage of gestation on the serum se, cu, zn and fe status of the heifers and their calves. fifty holstein heifers were randomly assigned to one of five treatments. four and two weeks before the expected time of calving, the heifers were injected intramuscularly 10 ml (t1), 20 ml (t2), 30 ml (...
In the previous paper of this series, the retention characteristics of 4-methyl sterols were investigated with a view for establishing a systematic relationship between the structure of sterols and their gas chromatographic characteristics. The present report deals an extended study on 6methyl sterols prepared from cholesterol. The retention data for five 6-methyl sterols and for their derivati...
Povzetek. Sodobne organizacije se spreminjajo zelo pogosto. Spremembe se poskuša izvesti hitro in učinkovito. Spremembe pogosto vključujejo spremembe IS zaradi njegovega pomena v organizacijah. Odpor do sprememb spada med ključne dejavnike uspeha večjih projektov in programov IT. Obvladovanje odpora ne pomaga organizacijam zgolj izvesti spremembe hitreje in učinkoviteje, temveč je hkrati tudi p...
Results of an international intercomparison study (CCQM-P86) to assess the analytical capabilities of national metrology institutes (NMIs) and selected expert laboratories worldwide to accurately quantitate the mass fraction of selenomethionine (SeMet) and total Se in pharmaceutical tablets of selenised-yeast supplements (produced by Pharma Nord, Denmark) are presented. The study, jointly coord...
A major problem in the formulation of therapeutic proteins is the irreversible protein aggregation. Recombinant human interferon alpha2b (rhIFN2b) has poor stability and undergoes physical degradation. The aim of this study was to investigate the effect of solution conditions on the heat-induced aggregation of rhIFNα2b. The protein was incubated for 1 h at 40°C–70°C and for up to 240 h at 50C...
A major problem in the formulation of therapeutic proteins is the irreversible protein aggregation. Recombinant human interferon alpha2b (rhIFN2b) has poor stability and undergoes physical degradation. The aim of this study was to investigate the effect of solution conditions on the heat-induced aggregation of rhIFNα2b. The protein was incubated for 1 h at 40°C–70°C and for up to 240 h at 50C...
Objetivo: En el siguiente estudio se muestra la determinación de bioequivalencia de dos formulaciones diferentes de tabletas de nevirapina (NVP) –tabletas de NVP de 200 mg, de los laboratorios Novatec, como la formulación de prueba (P) vs. las tabletas de Viramune de 200 mg, de Boehringer Ingelheim, como la formulación de referencia (R)–. Método: Una dosis única de 200 mg de cada formulación fu...
سلنیم (se) به دلیل وجود آن در جایگاه فعال آنزیم گلوتاتیون پراکسیداز به عنوان یک ریزمغذی ضروری برای انسان، حیوانات و میکروارگانیسم¬ها شناخته شده است. با وجود اینکه se برای گیاهان عالی عنصری ضروری نیست اما گزارش¬های زیادی در مورد اثرات مثبت se روی رشد و تحمل به تنش گیاهان وجود دارد. توانایی گیاهان برای جذب و تحلیل se وابسته به گونه گیاهی، شکل se کاربردی، ویژگی¬های فیزیکوشیمیایی و فعالیت میکروبی خ...
Foi desenvolvido um método simples usando Infra-Vermelho com Transformada de Fourier (IRFT) para a determinação de Imidaclopride em formulações pesticidas. As amostram foram diluídas com CHCl 3 e os espectros de IRFT de amostras e padrões foram obtidos numa resolução nominal de 4 cm, entre 4000 e 900 cm, com acumulação de 25 espectros. A determinação de Imidaclopride foi feita medindo-se tanto ...
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