지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 136 - 141 (6page)
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초록· 키워드
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Objectives: The objective of this study was to investigate whether the ammonia nitrogen concentration of aqueous samples such as drinking water can be determined by measuring the saturation of the samples colored by indophenol method.
Methods: A color saturation measurement system was constructed by connecting a notebook computer to an image acquisition device composed of a PC camera and a light source, and was then used to measure the saturation of samples colored by blue indophenol complex.
Results: Between two available light sources, a fluorescent lamp was selected due to its demonstrating better linearity between color saturation and ammonia nitrogen concentration. Prediction by quadratic regression was more accurate than by linear regression, and prediction by quadratic regression in the concentration range of 0.1-1.0 mg/l was more accurate than in the concentration range of 0.0-1.0 mg/l. Regression-based predictions over 0.25 mg/l, 0.55 mg/l and 0.75 mg/l concentrations were implemented both by spectrophotometric method and by measuring color saturation. In the case of 0.25 mg/l, the predicted concentration by spectrophotometric method was 0.256±0.0076 mg/l and the predicted concentration by measuring color saturation was 0.246±0.0086 mg/l (p=0.051). In the case of 0.55 mg/l, they were 0.561±0.0068 mg/l and 0.564±0.0166 mg/l (p=0.660). In the case of 0.75 mg/l, they were 0.755±0.0139 mg/l and 0.762±0.0088 mg/l (p=0.215).
Conclusions: There were no statistically significant differences (p>0.05) between the data from the two methods in all three of the concentrations. Therefore, the color saturation measurement method proposed in this paper may be considered applicable for determining the ammonia nitrogen concentration of aqueous samples such as drinking water.
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참고문헌 (14)
참고문헌 신청
Choi YJ / 2008 / A robust hand recognition method to variations in lighting / KIPSTB 15 (1) : 25 ~ 36
Chung HK / 1995 / Determination of aqueous ammonia with indophenol method: comparison and evaluation for the reaction-rate, equilibrium and flow-injection analysis methods /
Khairunniza-Bejo S / 2011 / Chokanan Mango Sweetness Determination using HSB Color Space / Third International Conference on Computational Intelligence, Modelling & Simulation
Ministry of Environment. / / Standard for the examination of drinking water
National Law Information Center / / Rules on the standards, examination, etc., of drinking water
Chung HK / 1995 / Determination of aqueous ammonia with indophenol method: comparison and evaluation for the reaction-rate, equilibrium and flow-injection analysis methods /
Khairunniza-Bejo S / 2011 / Chokanan Mango Sweetness Determination using HSB Color Space / Third International Conference on Computational Intelligence, Modelling & Simulation
Ministry of Environment. / / Standard for the examination of drinking water
National Law Information Center / / Rules on the standards, examination, etc., of drinking water
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