PMID- 16512417
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20070718
LR  - 20190827
IS  - 0910-6340 (Print)
IS  - 0910-6340 (Linking)
VI  - 22
IP  - 2
DP  - 2006 Feb
TI  - On-line hyphenation of hydride generation with in situ trapping flame atomic 
      absorption spectrometry for arsenic and selenium determination.
PG  - 249-53
AB  - The analytical performances of coupled hydride generation, integrated atom trap 
      (HG-IAT) atomizer flame atomic absorption spectrometry (FAAS) systems were 
      evaluated for determination of As and Se in biological and environmental 
      reference materials. Arsenic and Se hydrides are atomized in air-acetylene 
      flame-heated IAT. A new design of HG-IAT-FAAS hyphenated technique that would 
      exceed the operational capabilities of existing arrangements (a water-cooled 
      single silica tube, double-slotted quartz tube or an "integrated trap") was 
      investigated. A dramatic improvement in detection limit was achieved compared 
      with that obtained using anyone of the above atom trapping techniques separately. 
      The concentration detection limits were 4 and 3 ng ml(-1) for As and Se, 
      respectively. For a 2 min in situ preconcentration time, sensitivity enhancement, 
      compared to FAAS, were 875 and 833 folds for As and Se, respectively, using 
      hydride generation, atom trapping technique. The sensitivity can be further 
      improved by increasing the collection time. The relative standard deviations 
      (RSDs) are of the order of 5 - 9% for this hyphenated technique. The designs 
      studied include slotted tube, water-cooled single silica tube and integrated atom 
      trap. The accuracy was assessed by analyses of NRCC DOLT-2 (Dogfish Liver) and 
      NIST SRM 1648 (Urban Particulate Matter) reference materials. The measured As and 
      Se contents in two reference materials were in satisfactory agreement with the 
      certified values.
FAU - Matusiewicz, Henryk
AU  - Matusiewicz H
AD  - Politechnika Poznaniska, Department of Analytical Chemistry, 60-965 Poznan, 
      Poland. Henryk.Matusiewicz@put.poznan.pl
FAU - Krawczyk, Magdalena
AU  - Krawczyk M
LA  - eng
PT  - Journal Article
PL  - Switzerland
TA  - Anal Sci
JT  - Analytical sciences : the international journal of the Japan Society for 
      Analytical Chemistry
JID - 8511078
EDAT- 2006/03/04 09:00
MHDA- 2006/03/04 09:01
CRDT- 2006/03/04 09:00
PHST- 2006/03/04 09:00 [pubmed]
PHST- 2006/03/04 09:01 [medline]
PHST- 2006/03/04 09:00 [entrez]
AID - 10.2116/analsci.22.249 [doi]
PST - ppublish
SO  - Anal Sci. 2006 Feb;22(2):249-53. doi: 10.2116/analsci.22.249.