Tang Hongmao, Sandeluk James, Lin Linda, Lown J William
Centre for Passive Sampling Technology, Maxxam Analytics, Inc., 9331-48 Street, Edmonton, AB T6B 2R4.
ScientificWorldJournal. 2002 Jan 18;2:155-68. doi: 10.1100/tsw.2002.87.
A new Maxxam All-Season Passive Sampling system for monitoring H2S in air has been developed. This passive sampling system employs the same approaches as the Maxxam All-Season Passive Sampling Systems for monitoring SO2, NO2, and O3 reported previously. This system has been extensively tested in the lab (temperature from -20 to 20 degrees C, relative humidity from 30 to 84%, and wind speed from 0.5 to 150 cm/s) and validated in field studies. Comparing measurements obtained with the use of the new passive sampling system with equivalent measurement with the use of an active filter pack H2S sampler yielded an accuracy of greater than 85%. The new H2S passive sampling system can be used to measure ambient H2S concentrations ranging from 0.02 to 7 ppb based on a 1-month exposure period. There is no significant interference found from other sulfur compounds in air. This system has been used in many air monitoring projects.
已开发出一种用于监测空气中硫化氢的新型Maxxam全季节被动采样系统。该被动采样系统采用与先前报道的用于监测二氧化硫、二氧化氮和臭氧的Maxxam全季节被动采样系统相同的方法。该系统已在实验室（温度为-20至20摄氏度，相对湿度为30至84%，风速为0.5至150厘米/秒）进行了广泛测试，并在现场研究中得到验证。将使用新型被动采样系统获得的测量结果与使用有源滤袋硫化氢采样器进行的等效测量结果进行比较，得出的准确度大于85%。基于1个月的暴露期，新型硫化氢被动采样系统可用于测量范围为0.02至7 ppb的环境硫化氢浓度。未发现空气中其他硫化合物有明显干扰。该系统已用于许多空气监测项目。
