CAJ | 학술논문

三氯乙醛在常温下加碱能快速转化为三氯甲烷，通过测量三氯甲烷建立了顶空固相微萃取气相色谱法间接测定水中三氯乙醛的方法。探讨了水中三氯乙醛萃取效率的影响因素，如温度、萃取时间和加盐量等,并确定萃取温度为40℃、萃取时间为5 min和3 g加盐量作为实验的优化条件。实验结果表明，在0.50～20.0μg/L范围内线性关系良好，方法检出限为0.08μg/L，实际水样加标回收率为103%～120%，测定结果的相对标准偏差不大于2.5%（n=5）。该方法操作简单，重现性好，可用于地表水中三氯乙醛的测定。
삼록을철재상온하가감능쾌속전화위삼록갑완，통과측량삼록갑완건립료정공고상미췌취기상색보법간접측정수중삼록을철적방법。탐토료수중삼록을철췌취효솔적영향인소，여온도、췌취시간화가염량등,병학정췌취온도위40℃、췌취시간위5 min화3 g가염량작위실험적우화조건。실험결과표명，재0.50～20.0μg/L범위내선성관계량호，방법검출한위0.08μg/L，실제수양가표회수솔위103%～120%，측정결과적상대표준편차불대우2.5%（n=5）。해방법조작간단，중현성호，가용우지표수중삼록을철적측정。
Trichloroacetaldehyde was rapidly converted to chloroform in the presence of alkali at room temperature, then a new method for the indirect determination of trichloroacetaldehyde in water was developed by determining chloroform with SPME-GC. The optimal conditions were obtained that extraction temperature was 40℃,extraction time was 5 min and NaCl dosage was 3 g. Linear calibration curves were obtained for trichloroacetaldehyde in the range of 0.50-20.0μg/L. The detection limit of this method was 0.08μg/L. The results showed that the average recovery rate of four parallel tests was 103%~120%,and RSD was not more than 2.5%(n=5). This method is simple, has good repeatability, and it is suitable for determination of trichloroacetaldehyde in water.