DETERMINATION OF DISSOLVED MANGANESE IN SEAWATER BY FLOW-INJECTION ANALYSIS WITH COLORIMETRIC DETECTION
A flow injection technique for the determination of dissolved Mn in seawater and other natural waters has been developed. The technique utilizes the Mn-catalyzed oxidation of tiron by peroxide. The reaction product is determined colorimetrically. Sensitivity is enhanced and salt effects minimized through on-line preconcentration of Mn. For a 3-ml sample, a detection limit of 40 pmol kg-1 is possible. Use of a lab-built colorimetric detector can provide an inexpensive alternative to a commercial flow-through spectrophotometer.
LIMNOLOGY AND OCEANOGRAPHY
Shiller, A. M.
(1993). DETERMINATION OF DISSOLVED MANGANESE IN SEAWATER BY FLOW-INJECTION ANALYSIS WITH COLORIMETRIC DETECTION. LIMNOLOGY AND OCEANOGRAPHY, 38(6), 1290-1295.
Available at: http://aquila.usm.edu/fac_pubs/6677