CAJ | 학술논문

建立了毛细管柱气相色谱-微池电子捕获检测器测定水中苦味酸的方法.水样中的苦味酸经次氯酸钠氯化衍生后,经正己烷提取后进行气相色谱分析.考察了萃取溶剂和次氯酸钠加入量对萃取的影响.在优化萃取条件下,苦味酸在25～500μg/L范围内有良好的线性关系.在低、中、高三个添加水平,苦味酸的回收率为83.0%～91.74%,相对标准偏差为1.79%～3.82%.
건립료모세관주기상색보-미지전자포획검측기측정수중고미산적방법.수양중적고미산경차록산납록화연생후,경정기완제취후진행기상색보분석.고찰료췌취용제화차록산납가입량대췌취적영향.재우화췌취조건하,고미산재25～500μg/L범위내유량호적선성관계.재저、중、고삼개첨가수평,고미산적회수솔위83.0%～91.74%,상대표준편차위1.79%～3.82%.
A method for the analysis of picric acid in water was developed by GC/μ-ECD. Picric acid in the water was derivatized through javel , then extracted with n-Hexane and determined by GC.The influence of extraction parameters including extraction solven and the quantity of javel added to the water was investigated. The calibration curve of picric acid at the concentration range 25～500μg/L was linear by the proposed method. The average recoveries at three levels ranged from 83.0% to 91.74%, and the relative standard derivations were in the range of 1.79 %～3.82 %.