Lachat Total Phosphorus and Nitrogen Dual Persulfate Method
Lachat's application team, in conjunction with Dennis Jones of the North Dakota Department of Health, has developed a new dual persulfate digestion procedure
for total nitrogen and phosphorus. These new methods provide a full concentration range with just a simple sample loop change to go from 0.02 to 40.0 mg N/L
for total nitrogen; and 0.005 to 10 mg P/L for total phosphorus.