Mann J B, Freal J J, Enos H F, Danauskas J X
J Environ Sci Health B. 1980;15(5):519-28. doi: 10.1080/03601238009372200.
A method previously described by Mann et al. for the determination of hexachlorobenzene in air was modified to detect DBCP in air at the level of 0.02 ppb (by volume). The method utilizes Chromosorb 101 as a trapping medium with subsequent analysis of the eluted DBCP by electron capture--gas chromatography. The procedure was tested using air flows of 1 1/min to 5 1/min for sampling periods of 30 min to 3 hr. Recoveries of greater than 90% wer obtained for DBCP levels ranging from 0.07 ppb to 20 ppm. More than 90% of the DBCP stored on Chromosorb 101 at ambient temperature for one month was recovered. A one-half acre field plot was sprayed with DBCP using the drench method. Air samples were taken from the breathing zone of the applicator during the mixing, spraying and clean-up procedures. Air samples were also taken periodically around the perimeter of the plot for up to 7 days after spraying.
曼恩等人之前描述的一种测定空气中六氯苯的方法经过改进，用于检测空气中浓度为0.02 ppb（体积比）的二溴氯丙烷。该方法利用Chromosorb 101作为捕集介质，随后通过电子捕获气相色谱法对洗脱的二溴氯丙烷进行分析。使用1 l/min至5 l/min的气流进行30分钟至3小时的采样来测试该程序。对于浓度范围为0.07 ppb至20 ppm的二溴氯丙烷，回收率大于90%。在环境温度下储存在Chromosorb 101上一个月的二溴氯丙烷，回收率超过90%。使用浇灌法在一块半英亩的田地中喷洒二溴氯丙烷。在混合、喷洒和清理过程中，从施药人员的呼吸带采集空气样本。喷洒后长达7天，还定期在田地周边采集空气样本。
