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Poly(N,N-dimethlyaniline)가 코팅된 Boron doped diamond 전극을 이용한 신경전달 물질의 전기화학적 검출
조은인,황진희,박수길,Okajima, Takeyohi,Ohsaka, Takeo,Fujishima, Akira 한국공업화학회 2004 응용화학 Vol.8 No.1
The boron-doped conductive diamond electrode(BDD) was used as a working electrode for detection of serotonin, (5-hydroxytryptamine)(SE) in the presence of ascorbic acid(AA) which is mainly contained from vitamin C in human blood. In this study, the cationic polymer film of N,N-dimethylaniline (DMA) was electrochemically deposited on the BDD electrode surface to modify the characteristics of electrode. The PDMA film-coated BDD electrode can separate the oxidation potentials of AA and (SE) which coexist in a homogeneous solution. The selective detection of SE is achieved at the PDMA film-coated BDD electrode in the presence of AA.
심영지,박효진,김효정,조은인,양원모 全南大學校 師範大學 科學敎育硏究所 2016 科學敎育硏究誌 Vol.40 No.1
A yield and quality of tomato plants depends on the balance of growth and development. It is need the indicators for automatic image monitoring of tomato growth. This research was conducted to investigate a effective indicators for monitoring of tomato growth. The temperature are controlled 16 and 18, the drain quantity of nutrient solution 9700ml(week/8nozzle) and 14000ml(week/8nozzle). The leaf width and length at 18 are bigger than at 16. The brightness L and redness are low at 18than at 16, but yellowness b was high at 18. The difference of growth are bigger at 18 than 16. The color difference of leaflet E, L, a are higher in 2-3 cluster than 1, 4, 5 cluster, but color b is higher in nearest leaflet to stem apex. At the drain quantity of nutrient solution, 9700ml(week/8nozzle), a leaf width and length are small than at 14000ml(week/8nozzle), but is high the angle of leaflet. The leaf color did not differ significantly by the drain quantity of nutrient solution. The stem diameter was more affected by temperature, but the stem length was affected by the temperature and the quantity of nutrient solution supply. A fruit width and length were more affected by low temperature(16) than high temperature(18), and 9700ml(week/8nozzle) than 14000ml(week/8nozzle). The number of fruit were highest at 16 and 14000ml(week/8nozzle). In addition to leaf width, length, stem diameter and stem length, the angle and the color of leaflet are useful for indicators for automatic image monitoring of tomato growth, especially at the leaflet of 2-4 cluster below stem apex.