Evaluation of the ultraviolet spectrophotometric method for the measurement of total nitrogen in water

Agriculture & Biology

• total nitrogen 100%
• water 40%
• methodology 26%
• brackish water 22%
• organic matter 11%
• nitrates 10%
• digestion 9%
• sampling 9%
• fish ponds 8%
• nitrogen 7%
• spectrophotometers 7%
• freshwater fish 6%
• shrimp 5%
• spectroscopy 5%
• salinity 5%

Earth & Environmental Sciences

• nitrogen 58%
• evaluation 47%
• water 29%
• method 21%
• digestion 12%
• pond 11%
• nitrate 9%
• organic matter 8%
• brackish water 7%
• spectroscopy 5%
• sound 5%