|
KMID : 0385520160290010029
|
|
Analytical Science & Technology
2016 Volume.29 No. 1 p.29 ~ p.34
|
|
|
Quantitative determination of 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) in chlorinated drinking water using sample enrichment followed by liquid-liquid extraction and GC-MS
|
|
Kim He-Kap
Song Byeong-Yeol
|
|
|
Abstract
|
|
|
|
This study explores the means by which MX can be effectively extracted from chlorinated water 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX), a potent mutagen commonly found in chlorinated drinking water at concentrations of up to a few hundred ng/L, was quantitatively determined using sample enrichment followed by liquid-liquid extraction (LLE), derivatization to methylated form, and analysis with GC-MS. A 4-L water sample was enriched to a concentration of 0.4 L using a vacuum rotary evaporator at 30 ℃. MX in the water was extracted using ethyl acetate (100 mL × 2) as a solvent and MX in the extract was methylated with 10 % H2SO4 in methanol. MX was recovered at a rate of 73.8 %, which was higher than that (38.1 %) for the resin adsorption method. The limit of quantification and repeatability (as relative standard deviation) were estimated to be 10 ng/L and 2.2 %, respectively. This result suggested that LLE can be used for the determination of MX in chlorinated water as an alternative to more time-consuming resin adsorption method.
|
|
|
KEYWORD
|
|
|
chlorinated drinking water, GC-MS, liquid-liquid extraction, MX, sample enrichment,
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|