نتایج جستجو برای: uvvisible spectrophotometry
تعداد نتایج: 9288 فیلتر نتایج به سال:
Characterization Studies M.Alagar, T.Theivasanthi*, A. Kubera Raja Center for Research and Post Graduate Department of Physics, Ayya Nadar Janaki Ammal College, Sivakasi – 626124, Tamilnadu, India. Abstract The quantum dots of semiconductor display novel and interesting phenomena that have not been in the bulk material. The color tunability is one of the most attractive characteristics in II-VI...
The plasmonic properties of noble metal nanoparticles facilitate their use in novel in-vivo bio-applications such as targeted drug delivery and cancer cell therapy. Nanosilver is best suited for such applications as it has the lowest plasmonic losses among all such materials in the UVvisible spectrum. Its toxicity, however, can destroy the surrounding healthy tissue and thus, hinders its safe e...
Drug-plasma protein binding is one of the many factors which influence bioavailability of a drug. Efficacy, distribution and elimination of a drug can be affected by the reversible binding of the drug to plasma proteins, such as albumin and acid glycoprotein. The purpose of the study was to study the relative in vitro protein binding characteristics of various drugs like diclofenac sodium, pant...
Potassium diaquabis(oxalato)cobaltate(II) was prepared by reported method and characterized. The sample was irradiated with 60Co gamma rays up to 900 kGy. Spectral (IR, UVVisible), non-isothermal decomposition and antimicrobial properties of the complex were studied before and after irradiation. The bacterial strains screened were E.Coli, K.pneumonia, B.Cereus, and the fungal strains were A.nig...
Green synthesis is a biological method known for being environment-friendly, cheap and retrieval of nanoparticles with ease, which preferred more than chemical physical methods. Various metallic potent bioactivities have been synthesized using plant extracts. In this study, silver (AgNPs) the aqueous leaf extract Euphorbia rigida was investigated. Their antibacterial activity determined microdi...
OBJECTIVE The objective of this study was to develop a reproducible method of establishing the concentration of yeast cells per milliliter of solution. METHODS Three methods of determining the number of yeast cells in solution were compared: Neubauer's counting chamber, spectrophotometry, and nephelometry. RESULTS All three methods were comparable and reproducible. The following formulas we...
Articles about the development of derivative spectrophotometric methods and analytical applications of derivative spectrophotometry (DS) published in the last nine years (since 1994) are reviewed.
We evaluated the results of two surveys of neonatal bilirubin determinations in 66 Slovakian clinical chemistry laboratories. Identical control samples prepared as described by Vink (Clin. Chem. 33 (1987) 1817-1821) and commercially available control serum were used for both surveys. These control samples were analysed in the participating laboratories using various modifications of diazo techn...
Subarachnoid haemorrhage (SAH) has a high mortality and morbidity rate. Early SAH diagnosis allows the early treatment of a ruptured cerebral aneurysm, which improves the prognosis. Diagnostic cerebrospinal fluid (CSF) analyses may be performed after a negative computed tomography scan, but the precise analytical methods to be used have been debated. Here, we summarize the scientific evidence f...
Theoretical aspects, instrumental devices and analytical applications of derivative ultraviolet-visible region absorption spectrophotometry are reviewed.
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