TY - RPRT TI - Fit-for-purpose shellfish reference materials for internal and external quality control in the analysis of phycotoxins. AU - Philipp Hess AU - Pearse McCarron AU - Michael A Quilliam PY - 2006 DO - 10.1007/s00216-006-0792-8 UR - https://pubmed.ncbi.nlm.nih.gov/17004057/ ID - 17004057 ER -