Abstract

This paper proposes an optical system where the organic compound content in water is determined by using an ultraviolet (UV) LED (280 nm) and photodetector. The results obtained by the proposed prototype LED spectroscopy system, which includes a single photodetector and two parallel sample holders, are calculated by applying partial least square regression; the values are highly correlated with the actual concentrations of potassium hydrogen phthalate solutions, with an adjusted coefficient of determination about 0.996. Moreover, the total organic carbon values derived from the UV-Vis spectrometer of real samples (lake, river and sea water) differed little from those obtained by the LED spectroscopy. We confirm that the fast, sensitive, and compact LED sensor system can be readily configured for real-time monitoring of organic compounds in water.

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  1. N. Pasco, K. Baronian, C. Jeffries, and J. HayBiochemical mediator demand-a novel rapid alternative for measuring biochemical oxygen demandAppl. Microbiol. Biotechnol.200053613618
  2. Y. W. Kang, M. J. Cho, and K. Y. HwangCorrection of hydrogen peroxide interference on standard chemical oxygen demand testWater Res.19993312471251
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  8. R. H. Neal and T. YoungloveThe use of a dry combustion infrared instrumental technique to determine total and organic carbon in California soilsCommun. Soil Sci. Plant Anal.19932427332746
  9. D. Dubber and N. F. GrayReplacement of chemical oxygen demand (COD) with total organic carbon (TOC) for monitoring wastewater treatment performance to minimize disposal of toxic analytical wasteJ. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng.20104515951600
  10. R. W. MatthewsAn adsorption water purifier with in situ photocatalytic regenerationJ. Catal.1988113549555
  11. C. Kim, T. Ji, and J. B. EomDetermination of organic compounds in water using ultraviolet LEDMeas. Sci. Technol.201829045802
  12. S. A. Abdul-Wahab, C. S. Bakheit, and S. M. Al-AlawiPrincipal component and multiple regression analysis in modelling of ground-level ozone and factors affecting its concentrationsEnviron. Modell. Software20052012631271
  13. R. H. MyersClassical and modern regression with applications2nd edDuxbury PressBelmont, CA1990
  14. O. Thomas, H. E. Khorassani, E. Touraud, and H. BitarTOC versus UV spectrophotometry for wastewater quality monitoringTalanta199950743749
  15. P. Bhandare, Y. Mendelson, R. A. Peura, G. Janatsch, J. D. Kruse-Jarres, R. Marbach, and H. M. HeiseMultivariate determination of glucose in whole blood using partial least-squares and artificial neural networks based on mid-infrared spectroscopyAppl. Spectrosc.19934712141221
  16. I. H. LeeEasy flow regression analysisHannarae Publishing CoSeoul, Korea20147378
  17. S. BurkeLC-GC Europe Online Supplement statistics and data analysisRegression and calibration20011318

Other (17)

N. Pasco, K. Baronian, C. Jeffries, and J. HayBiochemical mediator demand-a novel rapid alternative for measuring biochemical oxygen demandAppl. Microbiol. Biotechnol.200053613618

Y. W. Kang, M. J. Cho, and K. Y. HwangCorrection of hydrogen peroxide interference on standard chemical oxygen demand testWater Res.19993312471251

I. Bisutti, I. Hilke, and M. RaesslerDetermination of total organic carbon-an overview of current methodsTrAC, Trends Anal. Chem.200423716726

G. R. PeytonThe free-radical chemistry of persulfate-based total organic carbon analyzersMar. Chem.19934191103

J. Qian and K. MopperAutomated high-performance, high-temperature combustion total organic carbon analyzerAnal. Chem.19966830903097

Y. Sugimura and Y. SuzukiA high-temperature catalytic oxidation method for the determination of non-volatile dissolved organic carbon in seawater by direct injection of a liquid sampleMar. Chem.198824105131

T. Saitoh, H. Nagai, M. Imai, K. Nakajima, and M. TujimuraSimultaneous removal of DO and TOC in ultrapure water by using UV raysDesalination199498249255

R. H. Neal and T. YoungloveThe use of a dry combustion infrared instrumental technique to determine total and organic carbon in California soilsCommun. Soil Sci. Plant Anal.19932427332746

D. Dubber and N. F. GrayReplacement of chemical oxygen demand (COD) with total organic carbon (TOC) for monitoring wastewater treatment performance to minimize disposal of toxic analytical wasteJ. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng.20104515951600

R. W. MatthewsAn adsorption water purifier with in situ photocatalytic regenerationJ. Catal.1988113549555

C. Kim, T. Ji, and J. B. EomDetermination of organic compounds in water using ultraviolet LEDMeas. Sci. Technol.201829045802

S. A. Abdul-Wahab, C. S. Bakheit, and S. M. Al-AlawiPrincipal component and multiple regression analysis in modelling of ground-level ozone and factors affecting its concentrationsEnviron. Modell. Software20052012631271

R. H. MyersClassical and modern regression with applications2nd edDuxbury PressBelmont, CA1990

O. Thomas, H. E. Khorassani, E. Touraud, and H. BitarTOC versus UV spectrophotometry for wastewater quality monitoringTalanta199950743749

P. Bhandare, Y. Mendelson, R. A. Peura, G. Janatsch, J. D. Kruse-Jarres, R. Marbach, and H. M. HeiseMultivariate determination of glucose in whole blood using partial least-squares and artificial neural networks based on mid-infrared spectroscopyAppl. Spectrosc.19934712141221

I. H. LeeEasy flow regression analysisHannarae Publishing CoSeoul, Korea20147378

S. BurkeLC-GC Europe Online Supplement statistics and data analysisRegression and calibration20011318

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