Linked Life Data

19195781

Source:http://linkedlifedata.com/resource/pubmed/id/19195781

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
2009-5-26
pubmed:abstractText
Mercuric ions in water samples were determined by a new modified carbon paste electrode based on N,N'-bis(salicylaldehyde)-phenylenediamine (salophen) as a chemical modifier. The construction, performance, and applications of mercury carbon paste electrode are described. The electrode displays a linear log[Hg(2+)] versus EMF response over a wide concentration range of 3.2 x 10(-7) to 3.2 x 10(-4) with Nernstian slope of 58.8+/-0.3 mV/decade with limit of detection 1.5 x 10(-7) over the pH range 3.8-7.8; the presence of the complex Hg(OH)(+) ion explains the slope of the response curve. The proposed sensor shows a reasonable discrimination ability towards Hg(II) in comparison to some alkali, alkaline earth transition and heavy metal ions. The modified electrode was applied as indicator electrode in potentiometric titration and successfully used to determine mercury(II) in water samples with satisfactory results.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1873-3336
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
602-8
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
A mercury(II) selective sensor based on N,N'-bis(salicylaldehyde)-phenylenediamine as neutral carrier for potentiometric analysis in water samples.
pubmed:affiliation
Chemistry Department, Faculty of Science, Al-Aqsa University, Gaza, Palestine. hazemona1@yahoo.co.uk
pubmed:publicationType
Journal Article