Wet effluent parallel plate diffusion denuder coupled capillary ion chromatograph for the determination of atmospheric trace gases.
Wet effluent parallel plate diffusion denuder coupled capillary ion chromatograph for the determination of atmospheric trace gases.
复制标题
湿流出物平行板扩散扩散器耦合毛细管离子色谱仪,用于测定大气中的痕量气体。
DOI:
10.1016/s0039-9140(98)00285-9
复制
发表时间:
1999
期刊:
影响因子:
6.1
通讯作者:
P. Dasgupta
中科院分区:
文献类型:
--
作者:
C. Boring;Simon K. Poruthoor;P. Dasgupta
We describe an inexpensive, compact parallel plate diffusion denuder coupled capillary IC system for the determination of soluble ionogenic atmospheric trace gases. The active sampling area (0.6×10 cm) of the denuder is formed in a novel manner by thermally bonding silica gel particles to the surface of Plexiglas plates. The effluent liquid from the parallel plate diffusion denuder is collected and preconcentrated on a capillary preconcentrator column before analysis using a capillary ion chromatograph. Using SO2as the test gas, collection efficiency is essentially quantitative at air sampling rates up to 500 ml min−1. The system provides a limit of detection (LOD) of 1.6 parts per trillion for SO2for a 10 min sampling period.