Michigan's Adventure: Amusement park and water park in Muskegon, Michigan. Porcupine Mountains: Group of small mountains spanning the northwestern Upper Peninsula of Michigan. Sleeping Bear Dunes: National lakeshore located along the northwest coast of the Lower Peninsula of Michigan. The Henry Fo...
Cooperative Institute of Limnology and Ecosystem Research, GLERL/University of Michigan, Lake Michigan Field Station, Muskegon, MI, U.S.A.Gary L. FahnenstielLake Michigan Field Station, NOAA‐Great Lakes Environmental Research Laboratory, Muskegon, MI, U.S.A.Henry A. Vanderploeg...
Other HPLC-grade solvents including acetonitrile, ethyl acetate, methanol, 2-propanol, and water were from Honeywell Burdick & Jackson (Muskegon, MI, USA). OPA reagents were prepared by dissolving 10 mg of OPA and 30 μ l of 2-mercaptoethanol in 250 μ l of methanol and mixing...