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نمایش تعداد 1-10 از 42
Measuring Vitamin E Level by Spectrophotometer
Vitamin E is the most effective biological antioxidant. Its deficiency causes oxidative damage. Moreover, vitamin E deficiency causes disturbances of growth and fertility, affecting in particular nerves, muscles, the ...
Chemical Hydride Generation prior to Headspace Funnel assisted Single Drop Microextraction Coupled to Microvolume UV–Vis Spectrophotometry for Antimony Determination
in environmental and food samples is of great importance [1].
Present work describes a novel method for determination of antimony based on stibine (SbH3) generation and headspace funnel assisted single-drop microextraction coupled to UV-Vis micro-spectrophotometry...
A 1,2-dibenzoyl-cyclopentadiene derivative as a new potential chelating agent in geological materials
In this paper, 2,3-bis(p-methoxybenzoyl)cyclopentadiene(DPMBCP) has been studied as a chelating agent and pKa value was determined by means of spectrophotometric measurement. The sigmid curve of optical density agents pH ...
Determination of Trihalomethanes in Tap Water by UV-Vis Spectrophotometry
A simple and sensitive spectrophotometric method based on Fujiwara reaction has been developed for determination of trihalomethanes in water. Determination of trihalomethanes was carried out by adsorption on Amberlite ...
Chemical Hydride Generation-Liquid Phase Microextraction along with UV-Vis Spectrophotometry for Determination of Arsenic
microextraction technique has been used in combination with hydride
generation for determination of arsenic (As) by UV–Vis spectrophotometry. The method is based on the reduction of As to Arsine (AsH3) in acidic media by sodium tetrahydroborate (NaBH4...
Vortex-assisted microextraction coupled to UV–Vis Spectrophotometry as a simple and sensitive approach for detection of iron
Iron (Fe) is one of the most important elements in environmental and biological systems. It is found as both Fe(II) and Fe(III) forms in the nature [1,2]. Iron in small amounts is an essential element for the life on Earth, ...
Thermodynamics study of binding of oxazepam and flurazepam to Human Serum
extensively studied by
several workers.
Materials and Methods: The binding of two diazepins [Oxazepam (O) and Flurazepam (F)] to HSA was
investigated by means of spectrophotometry. The binding isotherms for interaction of (F) and (O) with...
Coacervative extraction along with UV-Vis spectrophotometry for determination of molybdenum in environmental samples
,
a preconcentration step is required prior to its determination [3]. Herein, a novel method based
on coacervative liquid-phase microextraction prior to UV-Vis spectrophotometry for
determination of molybdenum at trace levels in environmental samples...