玻璃纤维滤筒机械性能较好,但其本底浓度高,在0.55~0.79 mg/L之间,且空白间差异大,相对标准偏差达到13%,需经前处理清洗后再使用。石英滤筒化学稳定性好,本底低,浓度在0.29~0.33 mg/L之间,空白间差异小,RSD为4.5%,可直接用于监测。石英滤筒及前处理后的玻璃纤维滤筒同步采样时监测结果无显著差异。 Glass fiber cartridge has good mechanical properties, but its background concentration is high, ranging from 0.55 to 0.79 mg / L, and the difference between the blank is large, the relative standard deviation is 13%, which needs to be cleaned before use. Quartz cartridge chemical stability, low background, the concentration of 0.29 ~ 0.33 mg / L, the difference between the small, RSD 4.5%, can be directly used for monitoring. There was no significant difference in monitoring results between quartz cartridge and pretreatment glass fiber cartridge simultaneously.