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Determination of quinine in aqueous solution by chemiluminescence method

화학발광법에 의한 수용액 중의 퀴닌 정량

  • Lee, Hyun-Sook (Department of Sensor and Display Engineering, Kyungpook National University) ;
  • Kim, Tae-Yeon (Department of Chemistry Education, Graduate School of Education, Kyungpook National University) ;
  • Choi, Kyoung-Hye (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Karim, Mohammad Mainul (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Bae, Hyun-Sook (Department of Sensor and Display Engineering, Kyungpook National University) ;
  • Lee, Sang-Hak (Department of Sensor and Display Engineering, Kyungpook National University)
  • 이현숙 (경북대학교 공과대학 센서 및 디스플레이공학과) ;
  • 김태연 (경북대학교 교육대학원 화학교육과) ;
  • 최경혜 (경북대학교 자연과학대학 화학과) ;
  • ;
  • 배현숙 (경북대학교 공과대학 센서 및 디스플레이공학과) ;
  • 이상학 (경북대학교 공과대학 센서 및 디스플레이공학과)
  • Published : 2006.09.30

Abstract

A method to determine quinine in aqueous solution by chemiluminescence method using a stopped flow system has been studied. The method is based on the increased chemiluminescence intensity with the addition of quinine to a solution of lucigenin and hydrogen peroxide. The effects of KOH concentration, flow rate of reagents, $H_{2}O_{2}$ concentration used for the masking of quinine on the chemiluminescence intensity have been investigated. The calibration curve for quinine was linear over the range from $1.0{\times}10^{-7}$ M to $1.0{\times}10^{-3}$ M, coefficient of correlation was 0.993 and the detection limit was $3.0{\times}10^{-8}$ M under the optimal experimental conditions of 1.0 M, 1.5 M, 3.0 mL/min for the concentration of $H_{2}O_{2}$, KOH and flow rate of reagents, respectively.

Keywords

References

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