نتایج جستجو برای: spectrophotometric method

تعداد نتایج: 1637699  

2015
K. Uma Maheshwar

An isocratic RP-HPLC method (Method-A) and two visible spectrophotometric methods (Method B and C) were developed and validated for the determination of Clobazam in bulk and tablet dosage forms. In Method-A, a PEAK chromatographic system equipped with Zodiac C-18 (250mm, 4.6mm and 5μm) column, mobile phase of composition 10:30:60 (v/v/v) of tetra hydro furan (THF), methanol (MeOH) and acetonitr...

The glass surface modification with 3-(mercaptopropyl) trimethoxysilane (MPTS), gold nano-particles (GN) and guanine rich single strand DNA (ss-DNA) was utilized as a novel and efficient platform for sensing trace concentration of methylene blue (MB) by an inexpensive spectrophotometric method. Methylene Blue (MB) can interact with the guanine base of single strand DNA and absorbed onto glass s...

Journal: :Clinical chemistry 1959
H BERNINGER R SMITH

BECAUSE OF VARIATION in hemoglobin concentration in normal bloods with age and sex (1), the per cent carbon monoxide saturation of hemoglobin represents a more accurate toxicity index than the volume per cent of carbon monoxide. In 2 of the most common methods of carbon monoxide determination in blood, the gasometric method of Van Slyke (2, 3, 4) and the spectrophotometric method of Harper (5),...

A. Mohammad Dehqan M. Reza Shishehbore N. Nasirizadeh

The present work reports a kinetic spectrophotometric method for the determination of traceamounts of sulphite that is based on inhibitory effect of sulphite on the oxidation of Methyleneblue (MB) in acidic media. The reaction is followed spectrophotometrically by monitoring thedecrease in absorbance of MB at 664 nm with a fixed time of 0.5-4.5 minutes. It was found thatsulphite exert a strong ...

Journal: :Journal of the Association of Arab Universities for Basic and Applied Sciences 2016

Azar Bagheri Gh Mahnaz Bagheri

  Abstract: Spectrophotometric studies were successfully used in quantitative analysis of Amitriptyline Hydrochloride (ATH) Two new methods using spectrophotometry are described for the determination of (ATH) with potassium bromate as the oxidizing agent and acid dyes, Methyl orange and Indigo carmine. Both spectrophotometric methods are based o...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1992
sh. shamsipour, m. dadfarnia

a sensitive and selective extraction - spectrophotometric method for the determination of trace amounts of palladium is reported. the method is based on quantitative extraction of brownish tetrabutylammoium tetraiodopalladium (ii) ion pair into a small valume of chloroform at ph 1.3-12.0, followed by spectrophotometric measurements. the beer's law is obeyed over the range 0.02-1.09 mgml-1 at 44...

Journal: :analytical and bioanalytical chemistry research 0
abbas afkhami faculty of chemistry, bu-ali sina university, hamedan, iran massoumeh pirdadeh-beiranvand faculty of chemistry, bu-ali sina university, hamedan, iran tayyebeh madrakian faculty of chemistry, bu-ali sina university, hamedan, iran

a method based on the ultrasound-assisted solidification of floating drop microextraction technique was developed for the spectrophotometric and spectrofluorimetric determination of curcumin in turmeric powder. in this work a small volume of an organic solvent was floated on the surface of an aqueous solution. after sonication the organic solvent is solidified and separated. the effect of extra...

Journal: :journal of the iranian chemical research 0
hossein sheikhloie department of basic sciences, maragheh branch, islamic azad university, maragheh, iran khalil farhadi department of chemistry, urmia university, urmia, iran

a simple, sensitive and accurate method for spectrophotometric determination of dalacinphosphatehas been established. the method is based on the reduction of atomic absorptioncalcium ion by phosphate. because, there is a phosphate mole in every dalacin mole structureand with measurement of phosphate, dalacin is beyond measurement too. therefore, the reactionbetween acidic hydrolysis products of...

Journal: :Journal of Drug Delivery and Therapeutics 2023

Carbamazepine is an anticonvulsant. It works by decreasing nerve impulses that cause seizures and pain, such as trigeminal neuralgia diabetic neuropathy. well known contemporary pharmaceutical analysis establishes robust, sensitive, economic, stability-indicating analytical procedures. The current study aimed to develop assess UV-spectrophotometric (zero order, first second area under the curve...

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