지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Due to the stringent drinking water quality, formaldehyde will be included in Korean drinking water standard from year 2014. However, its standard analytical method has not yet been established. This study compares two analytical methods, DNPH-LC and ACFAS with respect to their analysis principles, Method Detection Limit (MDL), Limit Of Quantitation(LOQ), precision, accuracy, reproducibility, convenience, number of samples analyzed per hour and analysis cost. These methods measure absorption intensity at 360 nm by using HPLC after DNPH-derivatization (DNPH-LC) and at 410 nm by using Automated Continuous Flow Absorption Spectrophotometer (ACFAS), respectively. Reproducibility was tested by repeating the analysis 7 times using a standard solution for each method. For DNPH-LC method, MDL was $0.5{\mu}g/L$, LOQ was $1.58{\mu}g/L$ with standard deviation of $0.16{\mu}g/L$. For ACFAS method, they were $0.27{\mu}g/L$, $0.85{\mu}g/L$L with standard deviation of $0.09{\mu}g/L$, respectively. Both methods satisfied the requirement set by the Korean drinking water quality standard. Complexity of sample pretreatment procedure for DNPH-LC method may cause large error and, consequently, the analytical result will depend on the level of skill of analyst. In contrast, ACFAS method which used only one reagent equipped with an automated injection device showed little analytical error. It costs about $5.00 and $1.00 for one sample to analyze by the DNPH-LC method and the ACFAS method, respectively. Compared to the DNPH-LC method, ACFAS method provided more reliable analytical results. In terms of convenience, easiness and analytical cost, ACFAS method was demonstrated to be superior to the DNPH-LC method. The results of this study suggested that the ACFAS method could be adapted as a proper method for determining formaldehyde content in drinking water.
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참고문헌 (14)
참고문헌 신청
Young-Hee Kang / 2008 / Encyclopedia of Life Science / Academybooks
Sung-Ok Kim / 2010 / Natural Formation of Formaldehyde in an Anaerobic Water Environment / Fall Association Conference Proceedings of the Korean Society of Water and Wastewer :315~316
Eun-Sun Kim / 2000 / Compariosn of Formaldehyde determinatin in air Using Spectrophotometer, Gas Chromatograph, Liquid Chromatograph / Industrial Health 152(0):28~36
Joung-Hwa Kim / 2004 / A Study on the Unregulated Contaminants Management of Drinking Water / Fall Association Conference Proceedings of the Korean Society of Water and Wastewer :72~73
National Institute of Environmental Research / 2010 / A Study on securing safety of bottled water :16~17
Sung-Ok Kim / 2010 / Natural Formation of Formaldehyde in an Anaerobic Water Environment / Fall Association Conference Proceedings of the Korean Society of Water and Wastewer :315~316
Eun-Sun Kim / 2000 / Compariosn of Formaldehyde determinatin in air Using Spectrophotometer, Gas Chromatograph, Liquid Chromatograph / Industrial Health 152(0):28~36
Joung-Hwa Kim / 2004 / A Study on the Unregulated Contaminants Management of Drinking Water / Fall Association Conference Proceedings of the Korean Society of Water and Wastewer :72~73
National Institute of Environmental Research / 2010 / A Study on securing safety of bottled water :16~17
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