Mīhini Horoi Ngongo Whakamātautau Aunoa Katoa YY-40

• Kupu Whakataki Poto

Nā te whānuitanga o ngā oko taiwhanga, inā koa te hanganga angiangi me te roa o ngā ngongo whakamātautau nunui, he uaua ki te mahi horoi. Ka taea e te mīhini horoi ngongo whakamātautau aunoa i hangaia e tā mātou kamupene te horoi me te whakamaroke aunoa i roto me waho o ngā ngongo whakamātautau i ngā āhuatanga katoa. He tino pai mō te horoi i ngā ngongo whakamātautau i roto i ngā taputapu whakatau hauota Kjeldahl.

• Ngā Āhuatanga o te Hua

1) Ka taea e te rehu paipa poutū 304 te kowiri tira, te rere wai pēhanga teitei me te horoinga pahūtanga nui te whakarite kia ma te horoi.

2) Ka taea e te pūnaha whakamahana hau-whakamaroke pehanga teitei me te rere nui o te hau te whakaoti tere i te mahi whakamaroke, me te pāmahana mōrahi o te 80℃.

3) Tāpiri aunoa i te wai horoi.

4) He tāke wai kua hangaia ki roto, he whakakī wai aunoa me te aukati aunoa.

5) Horoi paerewa: ① Rehu wai mārama → ② Pahuka horoi rehu → ③ Rukuhia → ④ Horoi wai mārama → ⑤ Whakamaroke hau wera pēhanga teitei.

6) Horoi hōhonu: ① Rehu wai mārama → ② Pahuka horoi rehu → ③ Rukuhia → ④ Horoi wai mārama → ⑤ Pahuka horoi rehu → ⑥ Rukuhia → ⑦ Horoi wai mārama → ⑧ Whakamaroke hau wera pēhanga teitei.