نتایج جستجو برای: thin layer chromatography tlc

تعداد نتایج: 483598  

ژورنال: پژوهش در پزشکی 2003
امید سبزواری, , سید علی ناظری, , منیر فکری, , سید عباس تقوا, , مهشید افشار, ,

Abstract Background: There are various methods for morphine extraction and detection, for this, Thin Layer Chromatography (TLC) is a useful tool. The most common detection technique of TLC plates is slit scanning densitometry. The aim of the present study was to compare the ability of a solid phase extraction (SPE) system with liquid-liquid extraction (LLE) for urinary detection of morphine by...

Journal: :iranian journal of diabetes and obesity 0
mohammad reza rezvanfar 1. department of internal medicine, arak university of medical sciences, arak, iran heidar farahany 2. department of biochemistry, arak university of medical sciences, arak, iran mohammad rafiee 3. department of biostatistics and epidemiology, arak university of medical sciences, arak, iran saeed kaboli 1. department of internal medicine, arak university of medical sciences, arak, iran

objective: during recent years, opium consumption has increased among iranian diabetic men. the belief that opium consumption can control or even eradicate dm is increasing. this study was conducted to compare the blood sugar, hba1c, lipid profile and the frequency of diabetes complications in male type ii diabetic patient with and without opium consumption. materials and methods: two hundred t...

2002
Roger Shaw William H. Elliott

Abbreviations and trivial names: chenodeoxycholate, 3a,7adihydroxy-5p-cholanate; TLC, thin-layer chromatography; PLC, preparative-layer chromatography; HPLC, high-pressure liquid chromatography; PMR, proton magnetic resonance spectroscopy; GLC, gas-liquid chromatography; MS, mass spectrometry. Address correspondence to William H. Elliott, E. A. Doisy Department of Biochemistry, St. Louis Univer...

Journal: :international archives of health sciences 0
r. sharafati chaleshtori qotb-e-ravandi avenue, pezeshk boulevard, kashan university of medical sciences, kashan, iran. postal code: 8715988141 f. golsorkhi food & hygiene control laboratory, deputy of food & drug, kashan university of medical sciences, kashan, iran

aims: the synthetic colors are preferred by the food industry because of the variety of shades, intensity, uniformity, excellent solubility and stability. they are used in a variety of food products such as dairy products, beverages, baked products, confections and pet foods. food colors may have toxic effects on the human body. this study aimed to examine the amount of synthetic colors in some...

Journal: :Journal of chromatographic science 2008
Daniel Jun Petr Stodulka Kamil Kuca Vit Koleckar Bohuslav Dolezal Peter Simon Miroslav Veverka

In this study, several thin-layer chromatography (TLC) methods are described for the identification of quaternary and non-quaternary compounds (parent compounds, intermediates, by-products, and products) arisen within the synthesis of the acetylcholinesterase reactivator HI-6, at present the most promising antidote in the case of nerve agent poisonings. Using the TLC technique, particular E and...

Journal: :progress in biological sciences 2014
navaz kharazian mojgan mohammadi

stachys genus with medicinal properties and high polymorphic features has been considered oneof the largest genera of lamiaceae. the aim of this study was to determine the flavonoid patternvariations and flavonoid groups in ten stachys species belonging to two sections; fragilicaulis,and aucheriana. the studied species were collected from natural habitats in iran and analysedfor their flavonoid...

Mahmood Reza Moein, Soheila Moein

      In the present study, an oxidative conversion of non-fluorescent dichlorofluoroscein (LDCF) to fluorescent dichlorofluoroscein (DCF) was used for detection of antioxidant properties of plant extracts. The rate of the reaction was followed by monitoring the formation of DCF as a function of time. The antioxidant assay was carried out for different concentrations of gallic acid, Salvia ...

2010
Brett J. West Shixin Deng

Morinda citrifolia L., commonly known as noni, is a growing global commodity. As such , there is a need for rapid and inexpensive identity tests of noni fruit and leaf products. Thin Layer Chromatography (TLC) methods w ere developed for the identification of deacetylasperulosidic acid in noni fruit and leaf products. TLC methods were also developed for the identification of scopoletin in noni ...

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