Brent Lewis notes and methods for manganese concentrations

Notes:

    1. Dissolved manganese (Mn) concentrations are in nmoles/liter.

    2. Filtered (Mn_filt) samples were passed through a 0.45 micron
    membrane filter.

    3. Samples were acidified with Q-HCl to pH <2 and stored in
    acid_cleaned LDPE bottles for a minimum of 6 months prior to
    analysis.

Methods:

   These samples were analyzed using the FIA method of:

   Mallini, L.S. and A.M. Shiller.  
   Limnol. Oceanogr., 38:1290-1295 (1993).