Matches in SemOpenAlex for { <https://semopenalex.org/work/W2070462074> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2070462074 endingPage "162" @default.
- W2070462074 startingPage "155" @default.
- W2070462074 abstract "A method for the quantitative analysis of resin acids in effluent and water samples using high-performance liquid chromatography is described. Resin acids in aqueous samples are extracted by passage through C18 solid-phase cartridges at pH 9. The (7-methoxycoumarin-4-yl) methyl (MMC) and (7-acetoxycoumarin-4-yl) methyl (MAC) esters are quantitatively formed at room temperature by the reaction of resin acids with 4-bromomethyl-7-methoxycoumarin and 4-bromomethyl-7-acetoxycoumarin respectively, in the presence of potassium carbonate. The effect of potassium carbonate particle size, exposure to light, presence of residual water, and derivatisation reagent: resin acid ratio on their formation are described. The MMC esters of resin acids may be detected by UV absorption at 318 nm at concentration > 20 μg 1−1, while the (7-hydroxycoumarin-4-yl) methyl esters, obtained by post-column alkaline hydrolysis of the resin acid MAC (RAMAC) esters, enable the detection or resin acids by fluorescence spectrophotometry to levels below 1 μg 1−1. The method has been compared to gas chromatogrpahic analysis of the carboxylic acid methyl esters and shows no evidence of any interferences by other carboxylic acids. The method is routinely used by two newsprint mills for environmental monitoring of resin acids in effluent." @default.
- W2070462074 created "2016-06-24" @default.
- W2070462074 creator A5007971530 @default.
- W2070462074 creator A5029147189 @default.
- W2070462074 creator A5068378090 @default.
- W2070462074 date "1992-03-01" @default.
- W2070462074 modified "2023-10-11" @default.
- W2070462074 title "Quantitative analysis of total resin acids by high-performance liquid chromatography of their coumarin ester derivatives" @default.
- W2070462074 cites W1485262415 @default.
- W2070462074 cites W1967757061 @default.
- W2070462074 cites W1972265145 @default.
- W2070462074 cites W1975658930 @default.
- W2070462074 cites W1976445127 @default.
- W2070462074 cites W1977757859 @default.
- W2070462074 cites W1979482783 @default.
- W2070462074 cites W1992146572 @default.
- W2070462074 cites W1992962587 @default.
- W2070462074 cites W1996513637 @default.
- W2070462074 cites W2018747956 @default.
- W2070462074 cites W2019340198 @default.
- W2070462074 cites W2020910491 @default.
- W2070462074 cites W2025791220 @default.
- W2070462074 cites W2026271174 @default.
- W2070462074 cites W2029898462 @default.
- W2070462074 cites W2046759899 @default.
- W2070462074 cites W2055010705 @default.
- W2070462074 cites W2060457187 @default.
- W2070462074 cites W2064212505 @default.
- W2070462074 cites W2070465065 @default.
- W2070462074 cites W2088355668 @default.
- W2070462074 cites W2151020295 @default.
- W2070462074 cites W2159898161 @default.
- W2070462074 doi "https://doi.org/10.1016/0021-9673(92)85157-o" @default.
- W2070462074 hasPublicationYear "1992" @default.
- W2070462074 type Work @default.
- W2070462074 sameAs 2070462074 @default.
- W2070462074 citedByCount "23" @default.
- W2070462074 countsByYear W20704620742012 @default.
- W2070462074 countsByYear W20704620742013 @default.
- W2070462074 crossrefType "journal-article" @default.
- W2070462074 hasAuthorship W2070462074A5007971530 @default.
- W2070462074 hasAuthorship W2070462074A5029147189 @default.
- W2070462074 hasAuthorship W2070462074A5068378090 @default.
- W2070462074 hasConcept C178790620 @default.
- W2070462074 hasConcept C179998833 @default.
- W2070462074 hasConcept C184651966 @default.
- W2070462074 hasConcept C185592680 @default.
- W2070462074 hasConcept C19629724 @default.
- W2070462074 hasConcept C2776923573 @default.
- W2070462074 hasConcept C2779074116 @default.
- W2070462074 hasConcept C2780291738 @default.
- W2070462074 hasConcept C40875361 @default.
- W2070462074 hasConcept C43617362 @default.
- W2070462074 hasConcept C4725764 @default.
- W2070462074 hasConcept C517785266 @default.
- W2070462074 hasConcept C81426234 @default.
- W2070462074 hasConcept C90932021 @default.
- W2070462074 hasConcept C94412978 @default.
- W2070462074 hasConceptScore W2070462074C178790620 @default.
- W2070462074 hasConceptScore W2070462074C179998833 @default.
- W2070462074 hasConceptScore W2070462074C184651966 @default.
- W2070462074 hasConceptScore W2070462074C185592680 @default.
- W2070462074 hasConceptScore W2070462074C19629724 @default.
- W2070462074 hasConceptScore W2070462074C2776923573 @default.
- W2070462074 hasConceptScore W2070462074C2779074116 @default.
- W2070462074 hasConceptScore W2070462074C2780291738 @default.
- W2070462074 hasConceptScore W2070462074C40875361 @default.
- W2070462074 hasConceptScore W2070462074C43617362 @default.
- W2070462074 hasConceptScore W2070462074C4725764 @default.
- W2070462074 hasConceptScore W2070462074C517785266 @default.
- W2070462074 hasConceptScore W2070462074C81426234 @default.
- W2070462074 hasConceptScore W2070462074C90932021 @default.
- W2070462074 hasConceptScore W2070462074C94412978 @default.
- W2070462074 hasIssue "1-2" @default.
- W2070462074 hasLocation W20704620741 @default.
- W2070462074 hasOpenAccess W2070462074 @default.
- W2070462074 hasPrimaryLocation W20704620741 @default.
- W2070462074 hasRelatedWork W1485351367 @default.
- W2070462074 hasRelatedWork W1995503666 @default.
- W2070462074 hasRelatedWork W2052449555 @default.
- W2070462074 hasRelatedWork W2069257629 @default.
- W2070462074 hasRelatedWork W2098851977 @default.
- W2070462074 hasRelatedWork W2161344889 @default.
- W2070462074 hasRelatedWork W2350258333 @default.
- W2070462074 hasRelatedWork W2368050516 @default.
- W2070462074 hasRelatedWork W2378300337 @default.
- W2070462074 hasRelatedWork W4234186987 @default.
- W2070462074 hasVolume "595" @default.
- W2070462074 isParatext "false" @default.
- W2070462074 isRetracted "false" @default.
- W2070462074 magId "2070462074" @default.
- W2070462074 workType "article" @default.