PMID- 18968900
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20130213
LR  - 20190729
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 59
IP  - 1
DP  - 2003 Jan 2
TI  - Solid-phase extraction of bismuth, lead and nickel from seawater using silica gel 
      modified with 3-aminopropyltriethoxysilane filled in a syringe prior to their 
      determination by graphite furnace atomic absorption spectrometry.
PG  - 201-5
AB  - In this study, the use of syringe filled with sorbent for the separation and 
      enrichment of bismuth, lead and nickel prior to their analysis by graphite 
      furnace atomic absorption spectrometry was described to substitute for batch and 
      column techniques. The method proposed in this paper was compared with column 
      technique with respect to easiness, fastness, simplicity, recovery and risk of 
      contamination. The syringe was filled with 0.5 g of sorbent and in order to 
      retain the analyte elements, 5 ml of sample solution (pH>/=5) was drawn into the 
      syringe to 15 s and discharged again in 15 s. Then, 2.0 M of HCl, as the eluent, 
      was drawn into the syringe and ejected back to desorb the analyte elements. At 
      optimum conditions, the recoveries of Bi, Pb and Ni were 95-99% with relative 
      standard deviations (RSDs) of around +/-2%. Detection limit (delta) was 0.5 mug 
      l(-1) for Bi, Pb and Ni, respectively. The elements could be concentrated by 
      drawing and discharging several portions of sample successively but eluting only 
      one time. Bi, Pb and Ni added to a seawater sample were quantitatively recovered 
      (>95%) with low RSD values of around +/-2-3%. The risk of contamination is less 
      than that with the column technique. In addition, it is much faster, simpler, 
      easier, more practical and handy compared with column technique.
FAU - Tokman, Nilgun
AU  - Tokman N
AD  - Faculty of Science and Letters, Department of Chemistry, Istanbul Technical 
      University, Maslak, Istanbul 34469, Turkey.
FAU - Akman, Suleyman
AU  - Akman S
FAU - Ozcan, Mustafa
AU  - Ozcan M
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
EDAT- 2008/10/31 09:00
MHDA- 2008/10/31 09:01
CRDT- 2008/10/31 09:00
PHST- 2002/05/07 00:00 [received]
PHST- 2002/09/03 00:00 [revised]
PHST- 2002/09/04 00:00 [accepted]
PHST- 2008/10/31 09:00 [pubmed]
PHST- 2008/10/31 09:01 [medline]
PHST- 2008/10/31 09:00 [entrez]
AID - S0039-9140(02)00479-4 [pii]
AID - 10.1016/s0039-9140(02)00479-4 [doi]
PST - ppublish
SO  - Talanta. 2003 Jan 2;59(1):201-5. doi: 10.1016/s0039-9140(02)00479-4.