"Metotia faʻapipiʻi: Nitrogen monoxide e faʻapipiʻi saʻo i le 4000 tikeri Celsius e ala i le pasia o se kasa fefiloi o le nitrogen ma le okesene e ala i se eletise eletise.

Catalytic oxidation method: I le i ai o le palladium poʻo le platinum catalyst, e susunuina le ammonia i le okesene poʻo le ea e maua ai le gaseous nitric oxide, ma a maeʻa ona faʻamamaina, faʻamalosi ma isi gaioiga, e maua ai le oloa nitric oxide.

Metotia Pyrolysis: Faʻamafanafana ma faʻaleagaina le nitrous acid poʻo le nitrite, o le kesi na maua e faʻamamaina, faʻapipiʻiina ma isi faiga e maua ai oloa nitric oxide.

Acid hydrolysis method: O le sodium nitrite e tali atu i le suka sulfuric dilute e maua ai le nitric oxide mama, ma e ala i le fufuluina o le alkali, vavaeeseina, faamamaina, ma le faʻamalosi, 99.5% mama nitric oxide e mafai ona maua. "