نتایج جستجو برای: hptlc

تعداد نتایج: 1462  

Journal: :Journal of lipid research 1983
L J Macala R K Yu S Ando

We have devised a high performance thin-layer chromatography (HPTLC) densitometry method to resolve the major lipid classes of brain tissue. We used DEAE-Sephadex column chromatography to separate the total lipid into neutral and acidic lipid fractions. The lipid fractions were then spotted on separate HPTLC plates and chromatographed in one dimension using two solvent systems. Quantitation was...

2010
BAHIA MOUSSA MARWA MOHAMED NADIA YOUSSEF

A reversed phase liquid chromatography (RP-HPLC) and thin layer chromatography (HPTLC) densitometry methods as a stability indicating assays of olmesartan medoxomil in presence of its acid or alkaline induced degradation products were developed. Olmesartan medoxomil and its degradation products were analyzed by HPLC equipped with UV-Variable wave length detector at 257 nm where quantitation was...

2016
Sakthivel Srinivasan Wankupar Wankhar Sheeladevi Rathinasamy Ravindran Rajan

The objective of this study was to evaluate the free radical scavenging potential and high performance thin layer chromatography (HPTLC) fingerprinting of Indigofera tinctoria (I. tinctoria). Phytochemical analysis was carried out using standard methods, and free radical scavenging activity of the plant was determined using 2,2-diphenyl-1-picrylhydrazy (DPPH), nitric oxide (NO) and superoxide a...

2016
Shirin Fahimi Seyed Alireza Mortazavi Mohammad Abdollahi Homa Hajimehdipoor

Nowadays, plants have been considered as powerful agents for treatment of disorders regarding to their traditional use. In Iranian Traditional Medicine (ITM), plants have a special role in the treatment of various diseases. Burns with their devastating outcomes have been discussed in ITM as well. In the present study, a polyherbal ointment (PHO), retrieved from ITM, was formulated for burn heal...

2014
Shuai Sun Hailing Liu Shunjun Xu Yuzhen Yan Peishan Xie

Due to the scarcity of resources of Ziziphi spinosae semen (ZSS), many inferior goods and even adulterants are generally found in medicine markets. To strengthen the quality control, HPLC fingerprint common pattern established in this paper showed three main bioactive compounds in one chromatogram simultaneously. Principal component analysis based on DAD signals could discriminate adulterants a...

2013
Vertika Khare Pradeep Kushwaha Shikhar Verma Abhishek Gupta Sharad Srivastava Ajay Kumar Singh Rawat

Background: Urtica dioica L. is a common Himalayan species which produces allergenic substances causing oedema and inflammation in humans. It has become a source of folk medicine for the treatment of many diseases. The leaves and roots both are used internally as a blood purifier and diuretic and an infusion of the plant is used for nasal and menstrual haemorrhage, diabetes, rheumatism, eczema,...

2013
Saeed Haghighi Mahmoud Reza Shapouri Mitra Amoli-Diva Kamyar Pourghazi Hossein Afruzi

A simple, accurate and rapid high performance thin layer chromatography (HPTLC)- densitometric method was developed for separation and determination of cetirizine (CET) as a long acting antihistamine and montelukast (MON) as an antileukotriene in pharmaceutical dosage forms. The compounds were separated on silica gel 60 F254 HPTLC plates using a mixture of ethyl acetate : methanol : ammonia sol...

2013
KVVS Krishna K Gouri Sankar M Syam Vardhan T Tamizhmani

A simple, rapid and reliable HPTLC method has been developed for simultaneous estimation of Chebulagic acid and Chebulinic acid in marketed polyherbal formulations. Identification and quantification were performed on 10cm x 10cm, layer thickness 0.2mm, aluminumbacked silica gel 60 F254 HPTLC plates previously washed with methanol. The solvent system consisting of Ethyl Acetate: Toluene: Formic ...

Journal: :Advanced pharmaceutical bulletin 2016
Keyvan Yousefi Sanaz Hamedeyazdan Mohammadali Torbati Fatemeh Fathiazad

PURPOSE In the present study we aimed to quantify marrubiin, as the major active compound, in the aerial parts of Marrubium vulgare from Iran using a HPTLC-densitometry technique. METHODS Quantitative determination of marrubiin in M. vulgare methanol extract was performed by HPTLC analysis via a fully automated TLC scanner. Later on, the in vitro antioxidant activity of the M. vulgare methano...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1388

جداسازی ترکیبات دارویی، به منظور تحقیق و کنترل کیفیت در صنعت داروسازی، تعیین مقدار مقادیر کم دارو در پلاسما، بافت و خون، در آزمایشگاه های تشخیص پزشکی و پزشکی قانونی اهمیت ویژه ای دارد. تکنیک ساده، ارزان، کارآمد و انعطاف پذیر کروماتوگرافی لایه نازک hptlc قادر به حل بسیاری از مشکلات موجود می باشد و می تواند جایگزین بسیار مناسبی برای تکنیک های معمول و پیچیده ی کروماتوگرافی گازی و کروماتوگرافی مایع...

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