Full Text PDF. Recovery studies were performed using 0. 5 mL of red wine and whisky. Enter the password to open this PDF file. spectrophotometric determination of ethanol in wine pdf Treatment procedures, and only spectrophotometry is used1 Jan 2012. The method consists of color reaction of ethanol with sodium dichromate. SPECTROPHOTOMETRIC DETERMINATION. For spectrophotometric determination of...

Several methods are available in literature for the determination of percentage purity of diazepam (pharmaceutical raw material) either by non aqueous titration or spectrophotometric methods. For the quantitative determination of diazepam from the commercial pharmaceutical preparations, the current official B.P method (nonaqueous titration and spectrophotometric assay) has been utilized and a c...

A derivative UV spectrophotometric and a reversed phase high-performance liquid chromatographic method for the determination of ciprofibrate in tablets was developed. The first-order derivative UV spectrophotometric method was found to be accurate with 100.57±0.97 recovery and precise with a coefficient of variation of 1.44. These results were compared to those obtained by reference methods, ze...

Focus of this paper is the description of common used methods for hexavalent chromium measurement. This work is focused especially on commonly available spectrophotometric method based on the reaction with 1,5-diphenylcarbazide, because not every laboratory is equipped with modern devices for this pollutant measurement,. Special attention was focused on the variability possibilities of the basi...

to develop a new more accurate spectrophotometric method for detecting monoamine oxidase inhibitors from plant extracts, a series of amine substrates were selected and their ability to be oxidized by monoamine oxidase was evaluated by the hplc method and a new substrate was used to develop a peroxidase-linked spectrophotometric assay. 4-(trifluoromethyl) benzylamine (11) was proved to be an exc...

We compared a spectrophotometric kit method (Glycospec) for determination of glycosylated hemoglobin (HbA1) with a microcolumn kit method (Bio-Rad). The Glycospec method is based on the change in absorbance when phytic acid binds to hemoglobin A. With glycosylated hemoglobin there is no such change because the binding is blocked by the sugar moiety. Inter-assay CVs were 2-6% for both methods. I...