Method 546 is a procedure for the determination of "total" microcystins (MC) and nodularins (NOD) in finished drinking water and in ambient water using enzyme-linked immunosorbent assay (ELISA).
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- EPA Method 546 (PDF)(24 pp, 431 K, September 2016, 815-B-16-011)