Plant Analysis Equipment
LECO FP-528 Total Nitrogen Analyzer
This instrument is used to determine Total Nitrogen in plant and other solid materials. It operates on the Dumas method, where the sample is combusted at 850 degrees C in an oxygen rich atmosphere. A 10 mL portion of the combustion gases are scrubbed of water and carbon dioxide and passed through a hot copper column to convert the NOx forms to N2. The resulting nitrogen gas is then measured by thermal conductivity in a helium carrier.
Lachat 8500 Flow Injection Analyzer
This instrument is used to determine (colorimetrically) the concentration of ammonia, nitrate, nitrite, phosphorus, sulfate and chloride in a wide range of plant, soil, water samples and extracts. (ours also measure potassium, its a different model, not sure exactly which one but this should help you..)