FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2051853586> ?p ?o ?g. }

• W2051853586 endingPage "205" @default.
• W2051853586 startingPage "201" @default.
• W2051853586 abstract "In this study, we investigated the patterns of cannabis users (n=412) according to their sex, age, and the results of urinalysis and hair analysis, and classified the concentrations of THCCOOH in hair into three categories to examine the levels of cannabis use. We also compared the concentrations of THCCOOH in hair root, hair without the hair root and whole hair and examined the relationship among them according to the results of urinalysis. The hair samples were washed, digested with 1ml of 1M NaOH at 85°C for 30min and extracted with 2ml of n-hexane:ethyl acetate (9:1) two times after adding 1ml of 0.1N sodium acetate buffer (pH 4.5) and 200μl of acetic acid. The final mixture was derivatized with 50μl of PFPA and 25μl of PFPOH for 30min at 70°C. The solution was evaporated, and the residue was reconstituted in 40μl of ethyl acetate and transferred to an autosampler vial. One microlitre was injected into the GC/MS/MS-NCI system. The concentrations of THCCOOH ranged from 0.06 to 33.44pg/mg (mean 2.96; median 1.32) in hair from cannabis users who had positive urine results and ranged from 0.05 to 7.24pg/mg (mean 1.35; median 0.37) in hair from cannabis users who had negative urine results. The average concentration of THCCOOH in hair from cannabis users who had positive urine results was higher than that from cannabis users who had negative urine results. Male cannabis users in their forties were predominant. We classified the concentrations of THCCOOH in hair into three groups (low, medium and high), and could use the grouping of THCCOOH in hair as a guide for determining the level of use. The low, medium and high concentration ranges for THCCOOH in hair were 0.05-0.24, 0.25-2.60 and 2.63-33.44pg/mg, respectively. We also investigated 28 hair samples with the root. The highest concentrations of THCCOOH were seen in the hair root from 18 out of the 28 hair samples. The average concentrations of THCCOOH in hair root, hair without hair root and whole hair from cannabis users who had positive urine results were higher than those who had negative urine results." @default.
• W2051853586 created "2016-06-24" @default.
• W2051853586 creator A5007252989 @default.
• W2051853586 creator A5009847472 @default.
• W2051853586 creator A5010415740 @default.
• W2051853586 creator A5015255749 @default.
• W2051853586 creator A5083426047 @default.
• W2051853586 date "2011-07-01" @default.
• W2051853586 modified "2023-09-26" @default.
• W2051853586 title "A study on the concentrations of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid (THCCOOH) in hair root and whole hair" @default.
• W2051853586 cites W1511484563 @default.
• W2051853586 cites W1521958490 @default.
• W2051853586 cites W1586756313 @default.
• W2051853586 cites W1975585936 @default.
• W2051853586 cites W1977460552 @default.
• W2051853586 cites W1982864170 @default.
• W2051853586 cites W1990859203 @default.
• W2051853586 cites W1998005270 @default.
• W2051853586 cites W2012444986 @default.
• W2051853586 cites W2015261007 @default.
• W2051853586 cites W2021546522 @default.
• W2051853586 cites W2024633282 @default.
• W2051853586 cites W2028640915 @default.
• W2051853586 cites W2037072019 @default.
• W2051853586 cites W2043888127 @default.
• W2051853586 cites W2044099738 @default.
• W2051853586 cites W2066372074 @default.
• W2051853586 cites W2084213319 @default.
• W2051853586 cites W2090488246 @default.
• W2051853586 cites W2093183342 @default.
• W2051853586 cites W2099271927 @default.
• W2051853586 cites W2109374421 @default.
• W2051853586 cites W2115154602 @default.
• W2051853586 cites W2116826826 @default.
• W2051853586 cites W2121888520 @default.
• W2051853586 cites W2136635478 @default.
• W2051853586 cites W2160980125 @default.
• W2051853586 cites W2162432447 @default.
• W2051853586 cites W3176544675 @default.
• W2051853586 doi "https://doi.org/10.1016/j.forsciint.2011.03.017" @default.
• W2051853586 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21497466" @default.
• W2051853586 hasPublicationYear "2011" @default.
• W2051853586 type Work @default.
• W2051853586 sameAs 2051853586 @default.
• W2051853586 citedByCount "16" @default.
• W2051853586 countsByYear W20518535862012 @default.
• W2051853586 countsByYear W20518535862013 @default.
• W2051853586 countsByYear W20518535862014 @default.
• W2051853586 countsByYear W20518535862015 @default.
• W2051853586 countsByYear W20518535862019 @default.
• W2051853586 countsByYear W20518535862021 @default.
• W2051853586 countsByYear W20518535862023 @default.
• W2051853586 crossrefType "journal-article" @default.
• W2051853586 hasAuthorship W2051853586A5007252989 @default.
• W2051853586 hasAuthorship W2051853586A5009847472 @default.
• W2051853586 hasAuthorship W2051853586A5010415740 @default.
• W2051853586 hasAuthorship W2051853586A5015255749 @default.
• W2051853586 hasAuthorship W2051853586A5083426047 @default.
• W2051853586 hasConcept C118552586 @default.
• W2051853586 hasConcept C142724271 @default.
• W2051853586 hasConcept C185592680 @default.
• W2051853586 hasConcept C204787440 @default.
• W2051853586 hasConcept C2776673659 @default.
• W2051853586 hasConcept C2777056318 @default.
• W2051853586 hasConcept C2779225474 @default.
• W2051853586 hasConcept C2779858419 @default.
• W2051853586 hasConcept C2780026642 @default.
• W2051853586 hasConcept C2781400828 @default.
• W2051853586 hasConcept C43617362 @default.
• W2051853586 hasConcept C55493867 @default.
• W2051853586 hasConcept C71924100 @default.
• W2051853586 hasConceptScore W2051853586C118552586 @default.
• W2051853586 hasConceptScore W2051853586C142724271 @default.
• W2051853586 hasConceptScore W2051853586C185592680 @default.
• W2051853586 hasConceptScore W2051853586C204787440 @default.
• W2051853586 hasConceptScore W2051853586C2776673659 @default.
• W2051853586 hasConceptScore W2051853586C2777056318 @default.
• W2051853586 hasConceptScore W2051853586C2779225474 @default.
• W2051853586 hasConceptScore W2051853586C2779858419 @default.
• W2051853586 hasConceptScore W2051853586C2780026642 @default.
• W2051853586 hasConceptScore W2051853586C2781400828 @default.
• W2051853586 hasConceptScore W2051853586C43617362 @default.
• W2051853586 hasConceptScore W2051853586C55493867 @default.
• W2051853586 hasConceptScore W2051853586C71924100 @default.
• W2051853586 hasFunder F4320322005 @default.
• W2051853586 hasFunder F4320322120 @default.
• W2051853586 hasFunder F4320322349 @default.
• W2051853586 hasIssue "1-3" @default.
• W2051853586 hasLocation W20518535861 @default.
• W2051853586 hasLocation W20518535862 @default.
• W2051853586 hasOpenAccess W2051853586 @default.
• W2051853586 hasPrimaryLocation W20518535861 @default.
• W2051853586 hasRelatedWork W1976976407 @default.
• W2051853586 hasRelatedWork W2110661393 @default.
• W2051853586 hasRelatedWork W2116082256 @default.
• W2051853586 hasRelatedWork W2125968965 @default.
• W2051853586 hasRelatedWork W2132222874 @default.
• W2051853586 hasRelatedWork W2136635478 @default.

• next