Ammonia or ammonium nitrogen in soil or water (NH3-, NH4+)
->토양이나 물에 있는 암모니아(NH3)와 암모니아태질소(NH4염의 질소)
7.1 Nitrate bacteria (NH4+ -> NO2-)
->유기질 질소와 산업적 고정으로 토양에 생긴 암모늄 이온이 질산태 이온으로 산화되는 과정이다. 이 과정을 질산과 과정이라 한다. 처음에는 NH4+이온이 NO2-
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*Separate Electric furnace and other system like Electronic scale
-Because Electric furnace temperature is very high
so we need to protect other system.
instrument composition
-Electric furnace
Temperature range:
25°C~1500°C
Heat speed :
Maximum 200°C/min
*N
1. Introduction
Ammonia (NH3) is one of the most familiar compounds of nitrogen and hydrogen as well as one of the world's most valuable industrial and agricultural chemicals. Ammonia is used throughout the industrial world as a valuable fertilizer.
Ammonia and its compounds, primarily ammonium nitrate and other ammonium salts, replenish nitrogen in depleted soils. This greatly increases y
1916 First report on the immobilization of proteins: adsorption of invertase on activated charcoal.
1956 Invention of the first oxygen electrode [Leland Clark]
1962 First description of a biosensor: an amperometric enzyme electrode for glucose. [Leland Clark]
1969 First potentiometric biosensor: urease immobilized on an ammonia electrode to detect urea. [Guilbault and Montalvo]
1970 Inve