CAJ | 학술논문

用吹扫捕集-气相色影质谱法对水中三氯乙醛进行了测定，研究了吹扫时间、NaOH溶液加入量对三氯乙醛响应值的影响，确定的实验条件为：吹扫4min，每40ml水样中加入0．20mlNaOH溶液，标准曲线范围在1．0-200μg/L时，线性相关系数可达0．999，取样量5ml时，检出限0．21μg／L。精密度和准确度实验结果为：空白水分别加标2．0μg／L和20μg／L时，6次平行测定的平均回收率分别为108％和94．4％，RSD分别为3．1％和2．4％。
용취소포집-기상색영질보법대수중삼록을철진행료측정，연구료취소시간、NaOH용액가입량대삼록을철향응치적영향，학정적실험조건위：취소4min，매40ml수양중가입0．20mlNaOH용액，표준곡선범위재1．0-200μg/L시，선성상관계수가체0．999，취양량5ml시，검출한0．21μg／L。정밀도화준학도실험결과위：공백수분별가표2．0μg／L화20μg／L시，6차평행측정적평균회수솔분별위108％화94．4％，RSD분별위3．1％화2．4％。
P＆T（Purge and Trap） -GC/MS method was used to determine trichloroacetaldehyde in water. The influence of purge time and NaOH dosage were studied. The results show that purge time is 4 min and NaOH solution dosage of 0. 20 ml to 40 ml of water sample, when standard curve 1.0-200μg/L, linear correlation coefficient above 0. 999, sample amount 5 ml, de-tection limit 0. 21μg/L. Precision and accuracy results show that when standard solution concentration to blank water increased to 2. 0 -20μg/L, the average recovery rate of six parallel tests is 108% -94. 4% , and RSD is 3.1%-2. 4%.