CAJ | 학술논문

建立了小量水样痕量苯酚的液-液微萃取气相色谱分析法。考查了乙酸乙酯在酸和盐的作用下对苯酚的萃取性能，优化了萃取过程。采用FID检测器、WBI-17直接进样口和DB-1宽口径弹性石英毛细管柱，通过快速进样和汽化室内填装适当的玻璃棉可以得到满意的定量精密度。8 mL水样、160 μL乙酸乙酯、3.5 g硫酸铵可获得1 μg/L的检测下限，加标回收率为95.0%～98.5%，RSD为2.8%～3.3％。
건립료소량수양흔량분분적액-액미췌취기상색보분석법。고사료을산을지재산화염적작용하대분분적췌취성능，우화료췌취과정。채용FID검측기、WBI-17직접진양구화DB-1관구경탄성석영모세관주，통과쾌속진양화기화실내전장괄당적파리면가이득도만의적정량정밀도。8 mL수양、160 μL을산을지、3.5 g류산안가획득1 μg/L적검측하한，가표회수솔위95.0%～98.5%，RSD위2.8%～3.3％。
A method for the liquid-liquid micro-extraction and gas chromatographic analysis of trace phenol in small amount of aqueous sample has been developed． The influences of acid and salts on recovery rate of phenol were examined． And, the influences of injection speeds and the conditions of silica wool in injection port on the quantitation precision were tested． With a direct injection port, an FID and a DB-1 capillary column of wide bore, a detection limit of 1 μg*L-1 can be obtained employing 8 mL water sample, 160 μL ethyl acetate and 3．5 g ammonium sulfate． The added recoveries were in the range of 95．0%-98．5%． The relative standard deviations were in the range of 2．8%-3．3％． This method is simple, convenient, rapid, accurate and practical．