居室空气中对二氯苯的污染与测定方法

DETERMINATION AND POLLUTION STATUS OF P-DICHLOROBENZENE OF IN-DOOR.

目的 :探讨居室内空气中对二氯苯的测定方法及污染状况。方法 :采用气相色谱氢火焰检测器测定空气中对二氯苯的时间加权平均浓度。结果 :方法的最小检出浓度为 0 .0 2 mg/ m3 (采气 48升 ) ,解吸效率为 92 .3 %～ 98.4% ,相对标准偏差小于 10 % ,不同模拟实验条件下室内空气中对二氯苯的浓度为 0 .19～ 4.2 2 mg/ m3 。结论 :本方法简便、可靠 ,可用于居室空气中对二氯苯的测定 。

Objective:To explore the determination method of p-dichlorobenzene pollution of in-door air Method:A gas chr omatography (FID) method to measure time-weighted average (TWA) concentration of p-dichlorobenzene was put forward Results:The detectio n limit was 0 02 mg/m 3, the desorption efficiency were 92 3~98 4% Conclusion:The results show the method is convenient, reliab le, and suitable for determination of in-door air The pollution of p -dichlorobenzenein in-door air should be paid more attention to