음용수 중 변이원성 물질(MX)에 관한 연구
The study of analysis of mutagen in drinking water
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Abstract
Disinfection by-products(DBPs), such as volatile trihalomethanes and the nonvolatile organochlorineacids, created by chlorination have been extensively studied. However MX which contributes 20-50% of themutagenic activity in drinking water began to people's attention since 1990. Its chemical name is 3-chloro-. Corresponding authorPhone : +82-(0)2-920-7168 Fax : +82-(0)2-920-7168E-mail: eayo@sungshin.ac.kr... . .... .. (MX). .. .. 291Vol. 19, No. 4, 20064-dichloromethyl-5-hydroxy-2(5H)-furanone. Acording to WHO guidelines its concentration should be controlled,but its value has not been set up. Due to analytical dificulties in measuring this compound at such a lowconcentrations and lack of information on toxicity to human. Because concentration (ng/L) of MX in drinkingwater is low traditional testing methods are ineffective. Therefore this study compared LLE and SPE and havechosen SPE to improve preconcentration. MX has been identified in chlorinated drinking water samples in severalcountries but not in korea Therefore this study analyzed concentration of MX in diferent water sources andin spring water. This study examined the causes of changing MX content. Chlorine dosage, seasons, watertemperature and distance from the source was all discoverd to be relavant. MX was analyzed in various treatmentto find optimum disinfection methods. The outcome was that the concentration of MX was minimized whenusing biological activated carbon-O3 and granular activated carbon.
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