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RISS 인기검색어
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- 저자 : 하남기 ( Nam Ki Ha ) (검색결과 2 건)
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유미선(Mee-Seon Yu),양성봉(Sung-Bong Yang),하남기(Nam Ki Ha),이은영(Eun Young Lee) 한국냄새환경학회 2010 실내환경 및 냄새 학회지 Vol.9 No.4
국내 양돈장 2곳과 일본의 양돈장 1곳을 방문하여 질소계 화합물과 관능에 의한 희석배수와 악취세기를 조사하였다. 비교적 악취에 대한 제어가 실시되고 있는 양돈장에서의 관능에 의한 측정치가 악취제어가 실시되고 있지 않은 시설에 비해 낮은 수준을 나타내었으며, 이와 동시에 질소계 화합물의 분석의 결과도 유사한 경향을 나타냄을 확인할 수 있었다. 이러한 결과는 환기나 탈취제 분무, 악취제어용 사료첨가제 사용 등에 의해 양돈장에서 발생되는 악취 및 악취의 원인이 되는 휘발성 질소계 화합물의 발생을 어느 정도 제어될 수 있음을 의미하였다. Odor intensities, odor concentrations and volatile amine compounds were investigated at the two piggeries in Korea and the one in Japan. It was confirmed that the piggery where odor control had been carried out intentionally showed the lower values of sensory measurement than those where the odor control had not been under consideration and also found that the concentrations of volatile amines in the odor-controlled piggery showed lower values rather than the uncontrolled. In this investigation, we conclude that the activities such as circulation of air in pig houses, spraying deodorants and feeding the additive that is effective for reducing malodors from piggery could decrease the odors and the concentrations of volatile amines that are the cause of offensive odors from piggery.
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유미선 ( Mee Seon Yu ),양성봉 ( Sung Bong Yang ),하남기 ( Nam Ki Ha ) 한국환경과학회 2010 한국환경과학회지 Vol.19 No.12
In this study, the detection limits of lower fatty acids in air were investigated by using Dynamic SPME(Solid Phase Micro-Extraction), i.e. improved Head Space - SPME method(HS-SPME). This Dynamic SPME, called SPDE(Solid Phase Dynamic Extraction), is the analytical method for volatile compounds in air with the extraction by using a stainless steel needle of which inner surface is coated with adsorption material and following the gas chromatographic analysis by inserting the needle into a injection port of GC and subsequently, desorption of the volatile compounds into a gas- chromatographic column. Extraction was carried out by passing the sample air through the needle with a suction pump which has been used for a detection tube. The result of measurement for the 6 lower fatty acids showed that the detection limits ranged from 0.10 ppm to 0.44 ppm and the linear correlation coefficients were over 0.99. Relative standard deviations obtained from 5 analytical repetition of a ca. 1.6 ppm standard mixture were in the range of 1.87%~2.47%. This method has been shown to be a adequate for the measuring C2~C5 fatty acids in air in the concentrations of over several hundreds ppb.
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