نتایج جستجو برای: isolation and structure elucidation

تعداد نتایج: 16988364  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1388

abstract: the present thesis includes ; one preface and 11speeches , that each speech considered in different researches . the prefact part , studied grammer back ground , the first speech considered a brief description about grammatical credits . the second speech considered the different typs of sentences , from structure and meaning points of view . the third speech considered the verb es...

Lycium species is a popular medicinal plant in the traditional Chinese medicine and Lycium ruthenicum is a native medicinal plant of Iran. Lycium genus has several biologically important properties too. Investigation of chemical composition of ethyl acetate extract of this plant is the goal of this study. Two coumarins (Scopoletin and Sculetin) and Methyl-2-hydroxy-4-undecanoxy-trans-cinamate w...

Journal: :iranian chemical communication 2014
hassan valizadeh fatemeh mahmoodi kordi reza koohkan mir babak bahadori mehdi moridi farimani

lycium species is a popular medicinal plant in the traditional chinese medicine and lycium ruthenicum is a native medicinal plant of iran. lycium genus has several biologically important properties too. investigation of chemical composition of ethyl acetate extract of this plant is the goal of this study. two coumarins (scopoletin and sculetin) and methyl-2-hydroxy-4-undecanoxy-trans-cinamate w...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

H Valizadeh ., KF Mahmoodi , MB Bahadori , Z Alizadeh ,

Background: Echinophora platyloba DC (Apiaceae) is one of the two endemic species of Echinophora genus in Iran. It has many folkloric uses and several biological activities but there is no information about its phytoconstituents. Objective: In this work some of the secondary metabolites were isolated, purified and identified from n-hexane, ethyl acetate and methanol extracts from the aerial pa...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
h valizadeh . department of chemistry, faculty of sciences, azarbaijan shahid madani university, tabriz, iran tel: +98-9141076880, fax: +98-4124327541 kf mahmoodi azarbaijan shahid madani university z alizadeh azarbaijan shahid madani university mb bahadori azarbaijan shahid madani university

background: echinophora platyloba dc (apiaceae) is one of the two endemic species of echinophora genus in iran. it has many folkloric uses and several biological activities but there is no information about its phytoconstituents. objective: in this work some of the secondary metabolites were isolated, purified and identified from n-hexane, ethyl acetate and methanol extracts from the aerial par...

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