FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386995068> ?p ?o ?g. }

• W4386995068 endingPage "12" @default.
• W4386995068 startingPage "5" @default.
• W4386995068 abstract "The total content ( c Σ ) of toxic phenols in water is usually determined using the procedures which include the introduction of a group reagent, measurement of the generalized signal ( A Σ ) at a selected wavelength, and assessment of c Σ in terms of C 6 H 5 OH. The use of diazotized sulfanilic acid (DSA) as a group reagent leads to the errors of c Σ determination which do not exceed 30% thus ensuring more adequate estimates of c Σ than measuring phenolic index. We suppose that further reduction of errors in group analysis would be possible with multiwavelength measurements and multivariate calibrations but these promising techniques have not been used yet for the determination of total phenol. To check up this assumption, model multicomponent colored solutions of the known composition were prepared and analyzed. These model mixtures contained simultaneously up to 5 different phenols with a total concentration ranged from 15 to 70 μmol/L. After converting all phenols to corresponding azo-dyes their generalized signals were measured at m wavelengths in the UV region of the spectrum 10 minutes after mixing the solutions. The results of group analysis were calculated with the multivariate calibrations; the recalculation of A Σ values to standard substance concentration we used only for comparison. The inverted multivariate calibrations were calculated with A Σ values of n model mixtures which formed a training set. For optimized conditions ( m = 7, n = 10) the systematic error of c Σ prediction is less than 13 % rel., that is half of errors for total index calculation. Therefore, inverted multivariate calibrations can be rather useful to control the total content of phenolics in natural and waste waters (instead of the total indices). However, systematic errors raised sharply when the analyzed sample contained some individual phenols which were absent in samples of the training set; in such cases the errors can increase up to 80 % rel. To maximize the correctness of corresponding techniques, it is desirable to elucidate beforehand the qualitative composition of phenol mixtures in water samples under study and take it into account when the multivariate calibration is used." @default.
• W4386995068 created "2023-09-25" @default.
• W4386995068 creator A5029236155 @default.
• W4386995068 creator A5036466135 @default.
• W4386995068 date "2023-09-24" @default.
• W4386995068 modified "2023-09-30" @default.
• W4386995068 title "Application of inverted multivariate calibrations to determination of the total content of phenols" @default.
• W4386995068 cites W139186982 @default.
• W4386995068 cites W1880209127 @default.
• W4386995068 cites W1982210907 @default.
• W4386995068 cites W2022682610 @default.
• W4386995068 cites W2038995428 @default.
• W4386995068 cites W2074568367 @default.
• W4386995068 cites W2085143141 @default.
• W4386995068 cites W2136552966 @default.
• W4386995068 cites W2806529943 @default.
• W4386995068 cites W2811496113 @default.
• W4386995068 cites W3190447107 @default.
• W4386995068 cites W4211133972 @default.
• W4386995068 cites W4307375673 @default.
• W4386995068 cites W4372237676 @default.
• W4386995068 doi "https://doi.org/10.26896/1028-6861-2023-89-9-5-12" @default.
• W4386995068 hasPublicationYear "2023" @default.
• W4386995068 type Work @default.
• W4386995068 citedByCount "0" @default.
• W4386995068 crossrefType "journal-article" @default.
• W4386995068 hasAuthorship W4386995068A5029236155 @default.
• W4386995068 hasAuthorship W4386995068A5036466135 @default.
• W4386995068 hasConcept C105795698 @default.
• W4386995068 hasConcept C113196181 @default.
• W4386995068 hasConcept C120665830 @default.
• W4386995068 hasConcept C121332964 @default.
• W4386995068 hasConcept C161584116 @default.
• W4386995068 hasConcept C178790620 @default.
• W4386995068 hasConcept C185592680 @default.
• W4386995068 hasConcept C18747219 @default.
• W4386995068 hasConcept C2777702071 @default.
• W4386995068 hasConcept C2777728882 @default.
• W4386995068 hasConcept C2781311116 @default.
• W4386995068 hasConcept C33923547 @default.
• W4386995068 hasConcept C40875361 @default.
• W4386995068 hasConcept C43617362 @default.
• W4386995068 hasConcept C6260449 @default.
• W4386995068 hasConceptScore W4386995068C105795698 @default.
• W4386995068 hasConceptScore W4386995068C113196181 @default.
• W4386995068 hasConceptScore W4386995068C120665830 @default.
• W4386995068 hasConceptScore W4386995068C121332964 @default.
• W4386995068 hasConceptScore W4386995068C161584116 @default.
• W4386995068 hasConceptScore W4386995068C178790620 @default.
• W4386995068 hasConceptScore W4386995068C185592680 @default.
• W4386995068 hasConceptScore W4386995068C18747219 @default.
• W4386995068 hasConceptScore W4386995068C2777702071 @default.
• W4386995068 hasConceptScore W4386995068C2777728882 @default.
• W4386995068 hasConceptScore W4386995068C2781311116 @default.
• W4386995068 hasConceptScore W4386995068C33923547 @default.
• W4386995068 hasConceptScore W4386995068C40875361 @default.
• W4386995068 hasConceptScore W4386995068C43617362 @default.
• W4386995068 hasConceptScore W4386995068C6260449 @default.
• W4386995068 hasIssue "9" @default.
• W4386995068 hasLocation W43869950681 @default.
• W4386995068 hasOpenAccess W4386995068 @default.
• W4386995068 hasPrimaryLocation W43869950681 @default.
• W4386995068 hasRelatedWork W2041305652 @default.
• W4386995068 hasRelatedWork W2049060115 @default.
• W4386995068 hasRelatedWork W2133565228 @default.
• W4386995068 hasRelatedWork W2135956699 @default.
• W4386995068 hasRelatedWork W2340680305 @default.
• W4386995068 hasRelatedWork W2949737016 @default.
• W4386995068 hasRelatedWork W2949802370 @default.
• W4386995068 hasRelatedWork W2950042096 @default.
• W4386995068 hasRelatedWork W2952256733 @default.
• W4386995068 hasRelatedWork W44109812 @default.
• W4386995068 hasVolume "89" @default.
• W4386995068 isParatext "false" @default.
• W4386995068 isRetracted "false" @default.
• W4386995068 workType "article" @default.