@article{JRC20464, address = {}, year = {2000}, author = {Rueckold S and Grobecker K and Isengard H}, abstract = {Abstract not available }, title = {Water as a Source of Errors in Reference Materials.}, type = {}, url = {}, volume = {}, number = {}, journal = {Fresenius' Journal of Analytical Chemistry}, pages = {}, issn = {}, publisher = {}, doi = {} }