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.
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pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
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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-meshheading:9228797-Acetates,
pubmed-meshheading:9228797-Alcohols,
pubmed-meshheading:9228797-Aldehydes,
pubmed-meshheading:9228797-Body Fluids,
pubmed-meshheading:9228797-Humans,
pubmed-meshheading:9228797-Membranes, Artificial,
pubmed-meshheading:9228797-Microchemistry,
pubmed-meshheading:9228797-Microspheres,
pubmed-meshheading:9228797-Polystyrenes,
pubmed-meshheading:9228797-Serum Albumin,
pubmed-meshheading:9228797-Solutions,
pubmed-meshheading:9228797-Sulfonic Acids,
pubmed-meshheading:9228797-Water
|
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
|