Linked Life Data

18298968

Source:http://linkedlifedata.com/resource/pubmed/id/18298968

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-2-26
pubmed:abstractText
An on-line flow injection spectrofluorimetric method for the direct determination of aluminium in water samples is described. The method is based on the reaction of aluminium with N-o-vanillidine-2-amino-p-cresol (OVAC) in acidic medium at pH 4.0 to form a water-soluble complex. The excitation and emission wavelengths were 423.0 and 553.0nm, respectively, at which the OVAC-Al complex gave the maximum fluorescence intensity at pH 4.0 in a 50% methanol-50% water medium at 50 degrees C. An interference from fluoride ions was minimised by the addition of Be(2+). Other ions were found not to interfere at the concentrations likely to be found in natural waters. The proposed methods were validated in terms of linearity, repeatability, detection limit, accuracy and selectivity. Under these conditions, the calibration was linear up to 1000microgL(-1) (r=0.999). The limit of detection (3sigma) for the determination of Al(III) was 0.057microgL(-1) and the precision for multiple determinations of 3ngmL(-1) Al(III) prepared in ultra-pure water was found to be 0.62% (n=10). The Schiff base ligand could be used to determine ultra-trace aluminium from natural waters. Analysis of environmental certified reference materials showed good agreement with the certified values. The procedure was found to be equally applicable to both freshwater and saline solutions, including seawater.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1873-4324
pubmed:author
pubmed:issnType
Electronic
pubmed:day
17
pubmed:volume
611
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
62-7
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Flow injection determination of aluminium by spectrofluorimetric detection after complexation with N-o-vanillidine-2-amino-p-cresol: the application to natural waters.
pubmed:affiliation
Department of Chemistry, Art and Science Faculty, Balikesir University, 10100 Balikesir, Turkey.
pubmed:publicationType
Journal Article, Validation Studies