http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
연구보문 : 수질환경 ; 먹는샘물의 보관 기간에 따른 formaldehyde 및 acetaldehyde의 농도 변화
이연희 ( Youn Hee Lee ),이준배 ( Jun Bae Lee ),박주현 ( Ju Hyun Park ),최자윤 ( Ja Yoon Choi ),안경희 ( Kyung Hee Ahn ),안혜실 ( Hye Sil Ahn ),권오상 ( Oh Sang Kwon ),김태승 ( Tae Seung Kim ),한진석 ( Jin Suk Han ) 한국환경농학회 2011 한국환경농학회지 Vol.30 No.3
BACKGROUND: According to Korean regulations, bottled waters (BWs) can not be treated with chemical disinfectants like chlorine, so UV and ozone disinfection is applied. During the past several years, chemicals were detected in some BWs, and the public was concerned about the safety of BWs. METHODS AND RESULTS: Mineral waters were stored for 180 days at 25℃ and 50℃, tested acetaldehyde and formaldehyde by HPLC. When mineral waters were put in a PET bottles, the formaldehyde level ranged from 5 to 66 μg/L during 180 days at 50℃. While the acetaldehyde level ranged from 31 to 221 μg/L, it was low than 16 μg/L in glass bottle. CONCLUSION(s): This result showed that formaldehyde and acetaldehyde were detected higher in PET bottles than glass bottles, these also increased depending on the time of storage. Concentration of formaldehyde and acetaldehyde could be significantly influenced by the time of storage and temperature.