TY - RPRT TI - Problems associated with using filtration to define dissolved trace element concentrations in natural water samples AU - A. J. Horowitz AU - K.R. Lum AU - J.R. Garbarino AU - G.E.M. Hall AU - C. Lemieux AU - C. R. Demas PY - 1996 DO - 10.1021/es950407h UR - https://pubs.usgs.gov/publication/70018739 ID - 70018739 ER -