Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-7-7
pubmed:abstractText
A new chromogenic reagent 2-[2-(5-bromoquinolinylazo)]-5-diethylaminophenol (5-Br-QADEAP) was synthesized, and its structure was verified by elemental analysis, infrared spectrum, and 1H nuclear magnetic resonance spectrum. The color reaction of 5-Br-QADEAP with cadmium was studied. In the presence of pH 8.0 buffer solution and Triton X-100 medium, 5-Br-QADEAP can react with cadmium(II) to form a stable 2 : 1 complex (5-Br-QADEAP: Cd(II). The molar absorptivity is 1.60 x 10(5) L x mol(-1) x cm(-1) at 595 nm. Beer's law is obeyed in the range of 0-1.0 microg x mL(-1). The cadmium ion in the samples can be enriched and separated by solid phase extraction with anion exchange resin cartridge. This method was applied to the determination of cadmium in water and food. The relative standard deviations are 2.5%-3.2%, and the recoveries are 96%-105%. The results are satisfactory.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1000-0593
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
327-30
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
[Study on solid phase extraction and spectrophotometric determination of cadmium with 2-[2-(5-bromoquinolinylazo)]-5-diethylaminophenol].
pubmed:affiliation
Department of Chemistry, Yuxi Teacher's College, Yuxi 653100, China.
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't, Evaluation Studies