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A Study on Spectra of Laser Induced Flourescence in Phantom of N-propyl-N,N-dimethylethanolamine

N-propyl-N,N-dimethylethanolamine의 Phantom에서 Laser Induced Fluorescence의 스펙트라에 관한 연구

  • Kim, Ki-Jun (Dept. of Chemical Engieering, Daejin Uni.) ;
  • Lee, Joo-Ho (University of Southern California, Dept. of Chemistry) ;
  • Lee, Joo-Youb (Dept. of Disaster Manag. & Safety Engieering, Jungwon Uni.) ;
  • Sung, Wan-Mo (Dept. of Chemical Engieering, Daejin Uni.)
  • 김기준 (대진대학교 공과대학 화학공학과) ;
  • 이주호 (Southern Califonia대학 화학과) ;
  • 이주엽 (중원대학교 방재안전공학과) ;
  • 성완모 (대진대학교 공과대학 화학공학과)
  • Received : 2015.06.02
  • Accepted : 2015.06.20
  • Published : 2015.06.30

Abstract

The influences of fluorescence, scattering, and flocculation in turbid material by light scattering of N-propyl-N,N-dimethylethanolamine, fluorescence agent and absorption agent were interpreted for the scattered fluorescence intensity and wavelength. They have been studied the molecular properties by the spectroscopy of laser induced fluorescence (LIF) and flocculation. The effects of optical properties in scattering media have been found by the optical parameters(${\mu}_s$, ${\mu}_a$, ${\mu}_t$). Flocculation is an important step in many solid-liquid separation processes and is widely used. When two particles approach each other, interactions of several colloid particles can come into play which may have major effect on the flocculation and LIF process. The values of scattering coefficient ${\mu}_s$ are large by means of the increasing scattering of scatterer, The values have been found that the slope decays exponentially as a function of concentration from laser source to detector by our experimental result. It may also aid in designing the best model for oil chemistry, bio-pharmaceutical, laser medicine and application of medical engineering on LIF and coagulation in particle transport mode.

N-propyl-N,N-dimethylethanolamine의 산란혼탁매질에서 형광, 산란과 응집의 영향은 파장 과 산란된 형광세기로 나타내는데, laser induced fluorescence(LIF) 분광학에 의한 분자특성으로 나타난다. 산란매질에서 광학적 효과는 광학적 파라미터들(${\mu}_s$, ${\mu}_a$, ${\mu}_t$)에 의해 표현되고 응집은 고-액상 분리 공정에서 중요하게 활용되고 있다. 따라서 입자가 서로 접근될 때 콜로이드 입자들의 상호작용을 LIF와 응집효과로 분석하였다. Monte Carlo simuation과 실험으로 레이저 광원에서 검출기까지 거리의 함수에 의해 농도가 묽어짐에 따라 산란세기가 기하급수적으로 감소함을 알 수 있었다. 이는 유지화학, 생의학, 레이저 의학, 의공학 분야적용에 LIF와 입자이동 현상은 아주 적합한 모델 연구에 큰 도움이 될 것이다.

Keywords

References

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