نتایج جستجو برای: hptlc fingerprinting

تعداد نتایج: 10503  

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...

2005
Sophie Engle

In one of the earliest publications on fingerprinting, Wagner defines “perfect fingerprinting” to include schemes such that any alteration to the marked object that makes the fingerprint unrecognizable must necessarily make the object unusable. Several modern fingerprinting schemes are based on the assumption that perfect fingerprinting of digital information is possible. This paper explores th...

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...

Journal: :CoRR 2010
Mikkel Baun Kjærgaard

An increasingly important requirement for many novel applications is sensing the positions of people, equipment, animals, etc. GPS technology has proven itself as a successfull technology for positioning in outdoor environments but indoor no technology has yet gained a similar wide-scale adoption. A promising indoor positioning technique is radio-based location fingerprinting, having the major ...

Journal: :کومش 0
احسان ناظم الحسینی مجرد ehsan nazemalhosseini mojarad research center for gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی، مرکز تحقیقات بیماری های گوارش و کبد نیلوفر تقی پور niloofare taghipour department of medical parasitology & mycology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی، دانشکده پزشکی، گروه انگل شناسی و قارچ شناسی علی حقیقی ali haghighi department of medical parasitology & mycology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran2- دانشگاه علوم پزشکی شهید بهشتی، دانشکده پزشکی، گروه انگل شناسی و قارچ شناسی اکبر کشاورز akbar keshavarz 660 laboratory research center for office of health and treatment, tehran, iran3- اداره بهداشت و درمان نیروی زمینی ارتش جمهوری اسلامی ایران، مرکز تحقیقات آزمایشگاهی ۶۶۰ نزاجا محمد رستمی نژاد mohammad rostami nejad research center for gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی، مرکز تحقیقات بیماری های گوارش و کبد محمد رضا زالی mohammad reza zali research center for gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iranدانشگاه علوم پزشکی شهید بهشتی، مرکز تحقیقات بیماری های گوارش و کبد

introduction: cryptosporidium is an apicomplexa parasite that infects humans and a wide range of domestic and wild animals. however, the sub-genotypes of the species infecting animals in iran are unclear. the aim of the present study isto identify dna fingerprinting of bovine cryptosporidium in qazvin province using sequences of gp60 gene.   materials and methods : in this study we investigated...

1999
Birgit Pfitzmann Ahmad-Reza Sadeghi

Fingerprinting schemes are technical means to discourage people from illegally redistributing the digital data they have legally purchased. These schemes enable the original merchant to identify the original buyer of the digital data. In so-called asymmetric fingerprinting schemes the fingerprinted data item is only known to the buyer after a sale and if the merchant finds an illegally redistri...

2016
Meenu Mehta Saurabh Satija Munish Garg

Objective: Boswellic acids (BAs) are active constituents of plant Boswellia serrata. In the present study boswellic acids were extracted from Boswellia serrata and dry methanolic extracts were quantified by HPLC and HPTLC. Method: A gradient HPLC method was used for the quantification of the boswellic acids; 11-keto-β-boswellic acid (KBA) and 3acetyl-11-keto-β-boswellic acid (AKBA). A direct HP...

2013
M. Venkataramana P. Shilpa K. Balakrishna H.S. Murali H.V. Batra

Hundred Fusarium culmorum strains, isolated from freshly harvested maize grain samples from Southern parts of India, were incubated in czapek-dox medium and analyzed for trichothecene (DON/NIV) production. The mPCR assay was standardized targeting trichothecene metabolic pathway genes viz., Tri6, Tri7, Tri13 for detection of trichothecene (DON/NIV) chemotypes and rDNA gene for specific detectio...

Journal: :Beni-Suef University Journal of Basic and Applied Sciences 2022

Abstract Background Northeast India has a rich resource of herbal plants, and it is essential to validate their therapeutic activity with proper scientific evidence. This study aims identify active phytocompounds found in the extracts Eranthemum indicum ( E. ) determine its antioxidative activities toxicity. Results In vitro free radical scavenging aqueous extract (AE) methanol (ME) (leaves) wa...

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