سنتز پلیمر حک‌شده یون اورانیم، رویکردی نوین در تجزیه نمونه‏‎های زمین‎شناسی (آب)‏

The purpose of this paper is to analyze geological samples (water) using cartridge in order to pre- concentration of these samples. in this ‎paper, the study of uranium ion imprinted polymer (iip) synthesis is addressed. the uranium ion complex in (ch3coo)‎‏ ‏‎2 uo2 .2h2o is ‎considered as the initial nucleus of polymer. this complex is formed by di vinyl phosphonic acid (vip) ligand. then, ethylene glycol ‎dimethacrylate (egdma) is used as cross linker and azobis isobutyronitril (aibn) acting as initiator in polymerization is applied for the ‎final synthesis of polymer. the synthesis of these polymers is performed by covalent interactions. the complex of non- imprinted polymer ‎‎(nip) is also synthesized under above- mentioned condition but without the presence of uranium ion and ligand. iip was obtained can be ‎used as a high absorbent for solid phase extraction (iip-spe). in addition, the study of condition and tests such as ph effect on absorption, ‎permeability factor, acid concentration and volume which is required for elution is conducted in order to test the column efficiency. the ‎experimental evidences indicate that the maximum absorption of uranium ion is in ph= 7. in addition, 1m nitric acid solution with 5 ml ‎volume has the highest elution rate. the rate of uranium permeation was measured above 200 mm. the results were obtained by icp-ms as ‎reference and icp-oes to promote the analytical reading and reduce the detection limit. these results indicate very high absorption of iip ‎for uranium ions. it must be noted that this process was successfully applied for pre-concentration of geological samples, in particular water ‎samples and led to the promotion of results from analyzing all metallic ions such as uranium ion in geological samples (water) by icp-oes ‎and analytical optimization with lower detection limit by icp-ms.‎