Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1997-8-18
pubmed:abstractText
A technique is described for performing solid-phase extractions on a semi-micro scale. Thin membrane disks 4 mm in diameter containing lightly sulfonated polystyrene or Silicalite particles are placed in the hub of a syringe needle. Aqueous samples (1-6 ml) are passed through the membrane disks and extracted compounds are subsequently eluted with 20-50 microliters of an organic solvent. Unlike solid-phase micro extraction (SPME) which uses a coated fiber, the present method is essentially a total extraction technique. Recoveries > 90% were generally obtained for a wide variety of test compounds. The same test compounds in human urine, albumin and human serum samples can be extracted without any pretreatment other than addition of a suitable surfactant. A "double-pass" technique was developed for convenient field sampling.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
773
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
189-97
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Semi-micro solid-phase extraction of organic compounds from aqueous and biological samples.
pubmed:affiliation
Department of Chemistry, Iowa State University, Ames, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't