TY - RPRT TI - Comparison of XAD with other dissolved lignin isolation techniques and a compilation of analytical improvements for the analysis of lignin in aquatic settings AU - Robert G. M. Spencer AU - George R. Aiken AU - Rachael Y. Dyda AU - Kenna D. Butler AU - Brian A. Bergamaschi AU - Peter J. Hernes PY - 2010 DO - 10.1016/j.orggeochem.2010.02.004 UR - https://pubs.usgs.gov/publication/70180383 ID - 70180383 ER -