Matches in SemOpenAlex for { <https://semopenalex.org/work/W1982482980> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W1982482980 endingPage "67" @default.
- W1982482980 startingPage "62" @default.
- W1982482980 abstract "The present work describes a portable photometer based on light-emitting-diodes (LED) for the determination of total aromatic hydrocarbons in water contaminated with gasoline. Two LED were employed as the light source with maximum emission at 1300 nm and 1689 nm. The radiation of each LED was collected with bundles of 24 silica optical fibers, which were assembled in a single bundle pointed toward the detection cell. An InGaAs photodiode was directly connected to the measuring cell. Software was written in VisualBasic.NET to control the photometer through a USB interface and for data acquisition. The determination of total aromatic hydrocarbons was performed using a silicone-sensing phase (length of 5 mm and diameter of 3.2 mm), which was employed to extract these compounds from the contaminated water. The extraction (60 min under constant stirring) was performed in a 100-mL flask filled with the water sample diluted in 2.0 mol L− 1 NaCl. A repeatability of 1.8% and 1.3% (expressed as the relative standard deviation of 10 measurements) was obtained at 1300 nm and 1689 nm, respectively. Absorbance values were calculated considering the signal at 1300 nm as reference because hydrocarbons do not absorb at this wavelength. Analytical curves up to 200 mg L− 1 and 400 mg L− 1 were constructed for benzene and toluene, providing limits of detection of 1.2 mg L− 1 and 1.7 mg L− 1, respectively. The sensitivity was similar to those obtained with a FT-NIR Bomem MB 160 spectrophotometer at the same wavelength. The photometer was applied to the determination of total hydrocarbons in water contaminated by gasoline. An analytical curve (50–300 mg L− 1) was constructed from reference solutions containing benzene and toluene in the ratio of 3:7, which is a ratio commonly found in Brazilian gasoline. The results provided by the photometer were compared with those obtained with the commercial spectrophotometer and did not show significant differences at a confidence level of 95%." @default.
- W1982482980 created "2016-06-24" @default.
- W1982482980 creator A5066627984 @default.
- W1982482980 date "2012-07-01" @default.
- W1982482980 modified "2023-10-10" @default.
- W1982482980 title "A portable photometer based on LED for the determination of aromatic hydrocarbons in water" @default.
- W1982482980 cites W1965936448 @default.
- W1982482980 cites W1998956966 @default.
- W1982482980 cites W2001020808 @default.
- W1982482980 cites W2004908797 @default.
- W1982482980 cites W2009264684 @default.
- W1982482980 cites W2016496488 @default.
- W1982482980 cites W2079080685 @default.
- W1982482980 cites W2084727940 @default.
- W1982482980 cites W2093303854 @default.
- W1982482980 cites W2116761902 @default.
- W1982482980 cites W2149311680 @default.
- W1982482980 doi "https://doi.org/10.1016/j.microc.2012.01.003" @default.
- W1982482980 hasPublicationYear "2012" @default.
- W1982482980 type Work @default.
- W1982482980 sameAs 1982482980 @default.
- W1982482980 citedByCount "54" @default.
- W1982482980 countsByYear W19824829802013 @default.
- W1982482980 countsByYear W19824829802014 @default.
- W1982482980 countsByYear W19824829802015 @default.
- W1982482980 countsByYear W19824829802016 @default.
- W1982482980 countsByYear W19824829802017 @default.
- W1982482980 countsByYear W19824829802018 @default.
- W1982482980 countsByYear W19824829802019 @default.
- W1982482980 countsByYear W19824829802020 @default.
- W1982482980 countsByYear W19824829802021 @default.
- W1982482980 countsByYear W19824829802022 @default.
- W1982482980 countsByYear W19824829802023 @default.
- W1982482980 crossrefType "journal-article" @default.
- W1982482980 hasAuthorship W1982482980A5066627984 @default.
- W1982482980 hasBestOaLocation W19824829801 @default.
- W1982482980 hasConcept C113196181 @default.
- W1982482980 hasConcept C11494860 @default.
- W1982482980 hasConcept C119128265 @default.
- W1982482980 hasConcept C120665830 @default.
- W1982482980 hasConcept C121332964 @default.
- W1982482980 hasConcept C147789679 @default.
- W1982482980 hasConcept C154020017 @default.
- W1982482980 hasConcept C185592680 @default.
- W1982482980 hasConcept C192562407 @default.
- W1982482980 hasConcept C28845197 @default.
- W1982482980 hasConcept C43617362 @default.
- W1982482980 hasConcept C4725764 @default.
- W1982482980 hasConcept C49040817 @default.
- W1982482980 hasConcept C751236 @default.
- W1982482980 hasConcept C98015330 @default.
- W1982482980 hasConceptScore W1982482980C113196181 @default.
- W1982482980 hasConceptScore W1982482980C11494860 @default.
- W1982482980 hasConceptScore W1982482980C119128265 @default.
- W1982482980 hasConceptScore W1982482980C120665830 @default.
- W1982482980 hasConceptScore W1982482980C121332964 @default.
- W1982482980 hasConceptScore W1982482980C147789679 @default.
- W1982482980 hasConceptScore W1982482980C154020017 @default.
- W1982482980 hasConceptScore W1982482980C185592680 @default.
- W1982482980 hasConceptScore W1982482980C192562407 @default.
- W1982482980 hasConceptScore W1982482980C28845197 @default.
- W1982482980 hasConceptScore W1982482980C43617362 @default.
- W1982482980 hasConceptScore W1982482980C4725764 @default.
- W1982482980 hasConceptScore W1982482980C49040817 @default.
- W1982482980 hasConceptScore W1982482980C751236 @default.
- W1982482980 hasConceptScore W1982482980C98015330 @default.
- W1982482980 hasFunder F4320322025 @default.
- W1982482980 hasLocation W19824829801 @default.
- W1982482980 hasOpenAccess W1982482980 @default.
- W1982482980 hasPrimaryLocation W19824829801 @default.
- W1982482980 hasRelatedWork W113997224 @default.
- W1982482980 hasRelatedWork W1965682703 @default.
- W1982482980 hasRelatedWork W1980295187 @default.
- W1982482980 hasRelatedWork W1996176696 @default.
- W1982482980 hasRelatedWork W2085336117 @default.
- W1982482980 hasRelatedWork W2396692467 @default.
- W1982482980 hasRelatedWork W3029461912 @default.
- W1982482980 hasRelatedWork W3029558031 @default.
- W1982482980 hasRelatedWork W4214858797 @default.
- W1982482980 hasRelatedWork W657124747 @default.
- W1982482980 hasVolume "103" @default.
- W1982482980 isParatext "false" @default.
- W1982482980 isRetracted "false" @default.
- W1982482980 magId "1982482980" @default.
- W1982482980 workType "article" @default.