Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-5-13
pubmed:abstractText
A simple, semi-automated, microcolumn solid-phase extraction (SPE) system is optimized for the extraction, preconcentration and HPLC analysis of seven different explosives and explosive derivatives contaminating seawater, river water and well water samples. The microcolumns were constructed from 1/16 in. O.D. PTFE tubing (1 in.=2.54 cm) packed with 0.5-1.5 mg of SPE material. LiChrolut EN or Porapak R. The extraction system consisted of two syringe pumps and several solenoid valves. Optimal detection limits were realized when the sample water flow-rate was maximally increased within the limits of the pump, 5-10 ml/min (despite exceeding the breakthrough threshold of the SPE microcolumn), and when the eluate volume collected from the column was minimized, <5 microl (despite very low recovery percentages).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
991
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
159-67
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Microscale solid-phase extraction system for explosives.
pubmed:affiliation
Nova Research, Inc., 1900 Elkin Street, Suite 230, Alexandria, VA 22308, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.