Paerewa Motu mo te whakataunga o nga konutai rauropi i roto i te karika o te china

He rite tenei paerewa ki te Whakanoho o te Ao mo te Paerewa (ISO) 5567-1982 "Te whakatau i nga konutai otaota volatile i te karika dehydrated".

1 Whakarāpopototanga o te tikanga

Ko te tauira e ruia ana ki te wai, ka tapiritia te etanol, ko te huringa o te waikawa o te waikawa hiriwa, me te kiko o te otinga o te konutai hiriwa.

2 reagents

2.1 Te waikawa nitric (tau motuhake 1.42)
2.2 ethanol 95% (v / v)
2.3 Paraffin wai
2.4 Nitric waikawa 10% (v / v)
2.5 haukini hydroxide 10% (v / v)
2.6 0.1000moL / l otite paerewa paerewa whakarewa, te whakarite me te tikanga o te whakamaoritanga e ai ki te GB 601-1977 "Matū Whakariterite Paerewa Whakaritenga" mahi.
2.7 0.1000moL / l Ammonium thiycyonate Paerewa Paerewa ThiyCyonate, Te taumaha i te haukini Thiocyanate 8g i rewa i roto i te wai 1L. Ko te tohutoro tohutoro GB 601-1977 "Tikanga Whakariterite Paerewa Whakariterite" i roto i te konutai i te konutai Tiriti.
2.8 Ko te raupaparorohiko harore Sulfate Comoticator, otiru otinga.

3 taonga

I te wa e aro turuki ana, na te mea ka karohia te taputapu hurihuri me nga hua o te parahi, nga hua rapa ranei, ko te taputapu totoka he hononga karaihe waha.
3.1 Ko te taputapu hurihuri (tirohia te hoahoa) he 250ml te roa o te kaimoana me te hika gooseneck me te hononga ngongo tika me te karaihe paerewa ranei.
3.2 250 ML Flatical Blaclical Blaclical, e kaha ana ki te whakamahi i te hononga ki te whakahoutanga o te reflux.
3.3 Te pati kaukau o te wai, ka taea te whakahaere i te pāmahana ki te 37 ± 1 ° C.
3.4 G2, G3 G3 G3 ranei.
3.5 papu papu ranei te papu wai.
3.6 pH pepa whakamātautau pH, ka taea te whakaatu i te PH = 7 ± 0.1. Constefur Allefur Haumaru.

4 Nga tikanga tātari

4.1 tauira tauira
Ko nga riipene karika dehydrated i hangaia ki nga matūriki ahua, ka whakatauira, ka taea e te karika karika me te paura karika he maamaa tika.
4.2 te rahi o te tauira
Te taumaha mo te 10G tauira, tika ki te 0.01g.
4.3 whakatau
4.3.1 Te horoi
Whakanohia te tauira ki roto ki te paoa (3.1) me te 100ml o te 40 ° Cle te wai me te horoi i te papa o te wai (3.3) i te pāmahana o te 37 ± C mo te 2h .
4.3.2 whakarahinga
I muri i te taapiri i te 20ml o te etanol (2.2) me te 2ml o te paraffin wai (2.3), me hono atu i te haki), ka uru ki te 10ml o te haukini haukini (2.5) ki te hakinakina. 3.2) kia heke te pito o raro o te kaiwhakarato i roto i te otinga haukini haukini.
Pania te ahi (3.1) ki te aukati i muri i te whiwhi 60 ml o te wehe, ka horoi i te kaiwhakarato ki te wai, ka kohia nga horoi ki te paraihe.
Me whakarite te pāmahana i te wa o te huringa ki te karo i te kohu o te mirumiru hau ka tuku i te reiti o te rereketanga o te rereketanga.
4.3.3 Te Tikanga
Whakatauhia te taarua (a) i roto i te hakinakina o te nitraric (2.4) ka whakapumautia te pH i te 7 ± 0.1 rite ine me te pepa whakamatautau pH (3.6). Tāpirihia te tāpiri 20.00 ml o te otinga paerewa o te nitrate hiriwa hiriwa (2.6) ki te taarua (a) ka wera i roto i te pati wai ki te 1 h. Ko te taarua (a) kua whakamatao ki te pāmahana rūma me te tātarihia e te karaihe karaihe, he papu wai ranei (3.5) me te wai wera me te horoi me te horoi (B ) i kohia. Tāpirihia te 5 ml o te waikawa nitric (2.1) me etahi pata o te haukini konutai (2.8), titral tohutoro (b) me te "Ammonium thionium thicecyanate paerewa paerewa parauri-whero me te pupuri mo te 0.5 min.

5 Te tātai o nga kitenga tātari

5.1 te tikanga tātai
Ko nga korero o te pūāhua o te Orbonosphur i roto i te karika whakaheke i te mea he papatipu papatipu o te whanariki e whai ake nei: mcvcx100057.0) 20 (21 × × tekau -
Kei hea: X - te kiko o te whakaurunga o te kohinga o te okana i roto i te karika dehydrated,%;
C1 - Te kukū o te otinga paerewa nitrate hiriwa (2.6), mol / l;
C2 - Te kukū o te otinga paerewa THAMECYANATETS (2.7), mol / L;
V - Ko te raupaparorohiko paerewa haukinite kua pau, ml;
0.057 - karamu o te whanariki whanariki [(ch2ch = ch2) 2s] rite ki te 1.00 ml o te otinga paerewa o te hiriwa hiriwa me te C = 1.000 mol / L;
M - papatipu o te tauira g. Ko nga hua ka puta, ka whakaatuhia ki nga waahi e rua.
5.2 te tino tika o te tikanga
Mo te kaiwhakahaere kotahi, ko te rereketanga i waenga i nga hua e rua i nga hua e rua kaore e neke atu i te 5 ōrau o a raatau uara, ki te kore e whakahoki i te whakatau.
5.3 te ripoata whakamātautau
Tangohia te tikanga o te tikanga o nga whakatau e rua mo te hua.

Whakataunga:

Ko tenei paerewa e whakaarohia ana e te Bureau o te kai kore-kore o te Manatū Pakihi o te Republic o te iwi China.
Ko tenei paerewa te kawenga mo te waihanga i te whare rangahau o Beijing Kai.
Ko te kaihanga matua o tenei paerewa Shen Bing, Liu Zhenfang, Li Weidong, Hoki ki a Jiuzhen.
Te Manatū Pakihi o te Republic o China 1988-02-29 i whakaaetia 1988-07-01 whakatinanatanga.