PMID- 17386446
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20070531
LR  - 20070327
IS  - 1873-4324 (Electronic)
IS  - 0003-2670 (Linking)
VI  - 581
IP  - 2
DP  - 2007 Jan 9
TI  - Imprinted polymer particles for selenium uptake: synthesis, characterization and 
      analytical applications.
PG  - 208-13
AB  - This work reports the preparation of molecularly imprinted polymer (MIP) 
      particles for selective extraction and determination of selenium ions from 
      aqueous media. Polymerization was achieved in a glass tube containing SeO(2), 
      o-phenylenediamine, 2-vinylpyridine (VP), ethyleneglycoldimethacrylate (EDMA), 
      2,2'-azobisisobutyronitrile (AIBN). The polymer block obtained was ground and 
      sieved (55-75 microm) and the Se-o-phenylenediamine complex was removed from 
      polymer particles by leaching with 2M of HCl, which leaves a cavity in the 
      polymer particles. The polymer particles both prior to and after leaching have 
      been characterized by IR and thermogravimetric (TG) studies. The effect of 
      different parameters, such as pH, extraction time, type and least amount of 
      eluent for elution of complex from polymer were evaluated. Extraction 
      efficiencies >99% were obtained by elution of the polymers with 15 mL of 
      methanol-acetonitrile mixture (1:2, v/v). The limit of detection of the proposed 
      method followed by hydride generation atomic absorption spectroscopy (HG-AAS) was 
      found to be 3.3 microg L(-1) and a dynamic linear range (DLR) of 10-200 microg 
      L(-1) was obtained. The relative standard deviations (R.S.D.s) at 30.0 microg 
      L(-1) of Se were below than 8.1%. The influence of various cationic interferences 
      on percent recovery of complex was studied. The method was applied to the 
      recovery and determination of selenium in different real samples.
FAU - Khajeh, Mostafa
AU  - Khajeh M
AD  - Department of Chemistry, Tarbiat Modarres University, P.O. Box 14115-175, Tehran, 
      Iran.
FAU - Yamini, Yadollah
AU  - Yamini Y
FAU - Ghasemi, Ensieh
AU  - Ghasemi E
FAU - Fasihi, Javad
AU  - Fasihi J
FAU - Shamsipur, Mojtaba
AU  - Shamsipur M
LA  - eng
PT  - Journal Article
DEP - 20060826
PL  - Netherlands
TA  - Anal Chim Acta
JT  - Analytica chimica acta
JID - 0370534
EDAT- 2007/03/28 09:00
MHDA- 2007/03/28 09:01
CRDT- 2007/03/28 09:00
PHST- 2006/06/19 00:00 [received]
PHST- 2006/08/13 00:00 [revised]
PHST- 2006/08/14 00:00 [accepted]
PHST- 2007/03/28 09:00 [pubmed]
PHST- 2007/03/28 09:01 [medline]
PHST- 2007/03/28 09:00 [entrez]
AID - S0003-2670(06)01757-0 [pii]
AID - 10.1016/j.aca.2006.08.037 [doi]
PST - ppublish
SO  - Anal Chim Acta. 2007 Jan 9;581(2):208-13. doi: 10.1016/j.aca.2006.08.037. Epub 
      2006 Aug 26.