PMID- 12920499
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20040511
LR  - 20160512
IS  - 1618-2642 (Print)
IS  - 1618-2642 (Linking)
VI  - 377
IP  - 4
DP  - 2003 Oct
TI  - Synthesis and applications of poly(acryl p-aminobenzenesulfonamideamidine- 
      p-aminobenzenesulfonylamide) chelating fiber for pre-concentrating and separating 
      trace Bi(III), Hg(III), Au(III) and Pd(IV) from solution samples.
PG  - 757-62
AB  - Poly(acryl p-aminobenzenesulfonamideamidine- p-aminobenzenesulfonylamide) 
      chelating fiber containing "S", "N", and "O" elements was synthesized from 
      polyacrylonitrile fiber and p-aminobenzene sulfonamide and used to enrich and 
      separate trace Bi(III), Hg(III), Au(III), and Pd(IV) ions from wastewater and ore 
      sample solution. The enrichment acidity, flow rate, elution conditions, reuse, 
      interference ions, saturated adsorption capacity, constant of adsorption rate, 
      analytical accuracy, and actual samples on chelating fiber were investigated by 
      means of inductively coupled plasma optical emission spectrometry (ICP-OES) with 
      satisfactory results. Solutions of 100 ng mL(-1) of Bi(III), Hg(III), Au(III), 
      and Pd(IV) ions can be enriched quantitatively by this chelating fiber at a rate 
      of 1.0 mL min(-1) at pH 4 and desorbed quantitatively with 20 mL of 0.25 M HCl 
      and 2% CS(NH(2))(2) solution at 50 degrees C (with recovery >/=97%). When the 
      chelating fiber was reused for 20 times, the recoveries of the analyzed ions 
      enriched by the fiber were still over 95% (except for Hg(III)). One thousand-fold 
      excesses of Mn(2+), Ca(2+), Zn(2+), Mg(2+), Fe(3+), Cu(2+), Ni(2+), Al(3+), and 
      Ba(2+) ions and thousands-fold excesses of Na(+ )and K(+) cause little 
      interference in the pre-concentration and determination of the analyzed ions. The 
      saturated adsorption capacity of Bi(III), Hg(III), Au(III), and Pd(IV) was 4.850 
      x 10(-4), 3.235 x 10(-4), 2.807 x 10(-4), and 3.386 x 10(-4) mol g(-1), 
      respectively. The constants of adsorption rate were 0.409 min(-1) for Bi, 0.122 
      min(-1) for Hg, 0.039 min(-1) for Au, and 0.080 min(-1 )for Pd. The relative 
      standard deviations (RSDs) for the enrichment and determination of 10 ng mL(-1) 
      Bi(III), Hg(III), Au(III), and Pd(IV) were lower than 2.3%. The results obtained 
      for these ions in actual samples by this method were basically in agreement with 
      the given values with average errors of less than 1.0%. FT-IR spectra shows that 
      the existence of -SO(2)-Ar, -H(2)N-Ar, O=C-NH-, HN=C-NH-, and -HN-SO(2) 
      functional groups are verified in the chelating fiber. From the FT-IR 
      spectroscopy, we can see that Hg(III), Au(III), and Pd(IV) are mainly combined 
      with nitrogen and sulfur (or oxygen), and Bi(III) is mainly combined with 
      nitrogen (or oxygen) of the groups to form a chelating complex.
FAU - Chang, Xijun
AU  - Chang X
AD  - Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China.
FAU - Wang, Yuman
AU  - Wang Y
FAU - Zhao, Ran
AU  - Zhao R
LA  - eng
PT  - Journal Article
DEP - 20030812
PL  - Germany
TA  - Anal Bioanal Chem
JT  - Analytical and bioanalytical chemistry
JID - 101134327
EDAT- 2003/08/16 05:00
MHDA- 2003/08/16 05:01
CRDT- 2003/08/16 05:00
PHST- 2003/02/14 00:00 [received]
PHST- 2003/06/06 00:00 [revised]
PHST- 2003/06/17 00:00 [accepted]
PHST- 2003/08/16 05:00 [pubmed]
PHST- 2003/08/16 05:01 [medline]
PHST- 2003/08/16 05:00 [entrez]
AID - 10.1007/s00216-003-2129-1 [doi]
PST - ppublish
SO  - Anal Bioanal Chem. 2003 Oct;377(4):757-62. doi: 10.1007/s00216-003-2129-1. Epub 
      2003 Aug 12.