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제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Detection of Single Water/Oil Nanoemulsion Droplet using Electrochemical Collisions on an Ultramicroelectrode

등록일
2017년 8월 24일 11시 35분 36초
접수번호
1542
발표코드
ELEC.P-474 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 20일 (금요일) 13:00~14:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Nhung Hoang, Thy Ho, Jun Hui Park1,*, Byung-Kwon Kim*
Department of Chemistry, Sookmyung Women's University, Korea
1Department of Chemical Education, Chonbuk National University, Korea
Herein, for the first time, research on water-in-oil (water/oil) emulsion droplets by electrochemical analysis has been reported. When the water/1,2-dichloroethane emulsion droplets collided with an ultramicroelectrode (UME), the blocking property of the droplets resulted in a “staircase” current decrease. Each “staircase” current decrease is associated with the collision of an emulsion droplet with the UME surface. The experimental collision frequency was proportional to the concentration of the emulsion droplet. In addition, the size of each water droplet was estimated from the magnitude of the “staircase” current decrease and the simulation data. Results obtained from the collision signals provide information about the size of each single droplet (nano- to micro-) and the pM level concentrations of the water droplets in the organic continuous phase.

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