taputapu whakatau hauota Kjeldahl aunoamahi mahi:
Ko nga mahinga mahi i mahia i roto i te tauira whakamatautau taputapu ko enei e whai ake nei: te waimeha, te taapiri reagent, te whakamaarama, te titration, te rerenga para, te tatauranga hua, te ta.
Dilution: waimeha i te tauira kua keri ki roto i te ngongo nakunatu ki te wai maturu.
Tāpirihia nga reagents: tae atu ki te rei, te wairewa whakauru waikawa boric, te waikawa titrating.
Māturu: Tukua te tauira i roto i te ngongo nakunaku ki roto i te mamaoa wera hei koromamao i te hau haukini i roto i te tauira.
Titration: Titration o te wairewa mimiti i te wa o muri ranei i muri i te whakamaarama.
Horoihia te wai: whakahekehia te wai para mai i te ngongo ngongo me te kapu whiwhi.
Tātai me te tā: tātai me te tā i te hua i runga i te mahi.
Te tukanga whakamatautau tauira:
(1) Whakauruhia te taputapu me te hono i te paipa.
(2) Whakatuwheratia te condensate, tuu he ngongo kohuke kau, whakatuwherahia te taputapu tuatahi mo te 5 ~ 10min, horoi i te paipa, kia mau te rere o te kohu wai.
(3) Whakanohoia te ngongo ngongo kei roto he wai nanahu ka whakarite i nga tawhā me nga mahi e rite ana i mua i te tiimata o te whakamatautau. Ko te mahi rapunga wa-tūturu ka whakahohehia i te wa ano. Tāpirihia he wairewa whakauru waikawa boric, waimeha me te rei ki roto i te taputapu Kjeldahl aunoa; Ko te haukini ka puta mai i te whakamaroke mamaoa ka ngohia e te toha ki te waikawa boric katahi ka titrated ki te waikawa paerewa.
(4) Kua mutu te whakamatautau ka whakaatuhia nga hua. Ka taea te ta, te tuku para me te horoi aunoa. Ka whakaatuhia te mata whakauru tawhā tuatahi.
Tukuna mai to korero ki a matou:
Wā tuku: Tihema-24-2021
