TY - RPRT TI - A gel probe equilibrium sampler for measuring arsenic porewater profiles and sorption gradients in sediments: I. Laboratory development AU - K.M. Campbell AU - R. Root AU - P. A. O’Day AU - J. G. Hering PY - 2007 DO - 10.1021/es071119b UR - https://pubs.usgs.gov/publication/70033251 ID - 70033251 ER -