TY - RPRT TI - Equilibration times, compound selectivity, and stability of diffusion samplers for collection of ground-water VOC concentrations AU - D.A. Vroblesky AU - T.R. Campbell PY - 2001 DO - 10.1016/s1093-0191(00)00036-8 UR - https://pubs.usgs.gov/publication/70023551 ID - 70023551 ER -