{"product_id":"synthesis-of-some-azocalix4pyrrole-derivative-and-their-applications-von-hrishikesh-gupte-und-keyur-bhatt","title":"Synthesis Of Some Azocalix[4]pyrrole Derivative And Their Applications","description":"\u003cp\u003eA new series of calix[4]pyrrole derivatives bearing azo-moiety at the mesoposition  of the macrocycles have demonstrated the ability for liquid-liquid extraction,  preconcentration and transport of Th(IV) across a liquid membrane. Various  significant extraction parameters such as effect of pH, effect of solvent and effect of  reagent concentration were investigated, which showed high affinity and selectivity  towards Th(IV) in the presence of large quantities of associated metal ions. The  wavelengths of maximum extraction (¿max) and molar absorptivity (¿) have also been  determined. The stoichiometry of complex was evaluated by Job¿s plot method, linear  concentration range obeying Beer¿s law, effect of diverse-ions have also been studied.  Liquid membrane transport studies of Th(IV) were carried out from source to the  receiving phase under controlled conditions and a mechanism of transport is  proposed. The validity of the proposed method was checked by determination of  analyte ions in certain standard and natural geological samples.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783639662030\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783639662030","offer_id":39467258708061,"sku":"9783639662030","price":45.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/09b0bf73-239a-49f1-9a40-edccba222406.jpg?v=1773381730","url":"https:\/\/shop.autorenwelt.de\/products\/synthesis-of-some-azocalix4pyrrole-derivative-and-their-applications-von-hrishikesh-gupte-und-keyur-bhatt","provider":"Autorenwelt Shop","version":"1.0","type":"link"}