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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1996-9-12
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pubmed:abstractText |
trans, trans-Muconic acid (1,3-butadiene-1, 4-dicarboxylic acid, MA), a minor urinary metabolite of benzene exposure, was determined, after clean-up by solid-phase anion-exchange chromatography, by reversed-phase HPLC on a C18 column (5 x 0.46 cm I.D., 3 microns particle size), using formic acid-tetrahydrofuran-water (14:17:969) as mobile phase and UV detection at 263 nm. The recovery of MA from spiked urine was > 95% in the 50-500 microgram/l range; the quantification limit was 6 micrograms/l; day-to-day precision, at 300 micrograms/l, was C.V. = 9.2%; the run time was less than 10 min. Urinary MA excretion was measured in two spot urine samples of 131 benzene environmentally exposed subjects: midday values obtained in non-smokers (mean +/- S.D. = 77 +/- 54 micrograms/l, n = 82) were statistically different from those of smokers (169 +/- 85 micrograms/l, n = 30) (P < 0.0001); each group showed a statistically significant increase between MA excretion in midday over morning samples. Moreover, in subjects grouped according to tobacco-smoke exposure level, median values of MA were positively associated with and increased with daily smoking habits.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
1572-6495
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
3
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pubmed:volume |
677
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
257-63
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pubmed:dateRevised |
2007-10-16
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pubmed:meshHeading |
pubmed-meshheading:8704929-Air Pollutants,
pubmed-meshheading:8704929-Benzene,
pubmed-meshheading:8704929-Chromatography, High Pressure Liquid,
pubmed-meshheading:8704929-Humans,
pubmed-meshheading:8704929-Male,
pubmed-meshheading:8704929-Reproducibility of Results,
pubmed-meshheading:8704929-Sorbic Acid,
pubmed-meshheading:8704929-Spectrophotometry, Ultraviolet,
pubmed-meshheading:8704929-Urinalysis
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pubmed:year |
1996
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pubmed:articleTitle |
Fast liquid chromatographic determination of urinary trans,trans-muconic acid.
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pubmed:affiliation |
Istituti Clinici di Perfezionamento, Laboratorio di Tossicologia Professionale, Milan, Italy.
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pubmed:publicationType |
Journal Article
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