National Standard no ka hoʻoholoʻana o nā sulphides organice ma dehydrated Garlic ma Kina

Ua like kēiaʻano maʻamau i ka hui honua no ka hoʻonohonohoʻana (ISO) 5567-1982

1 KAHANA O KA LOA

Hoʻokomoʻia ka'āpana i loko o ka wai, hoʻohuiʻiaʻo Ethanol, a me keʻano o ka huiʻana o ka collatitrilfur.

2 mau hana

2.1 Nitric AcID (Gravis Gravity 1.42)
2.2 Ethanol 95% (V / v)
2.3ʻO ka paraffin wai
2.4 nitric acid 10% (v / v)
2.5 OMSIUM HYDROXID 10% (V / v)
2.6 0.1000Mol / l i ke kumu kūʻai maʻamau maʻamau, hoʻomākaukau a me ke koho balota e like me keʻano o keʻano o ke kālepa o GB 601-19777.
2.7 0.1000Mol / L Amonum Tiocynate spell solution spell, kaupaonaʻana i ka ammonium thiiwitanate 8g i hoʻopauʻia i ka wai 1l. Ke alakaʻi neiʻo Calibration i ka GB 601-1977 "" Celectical Remotation Restation Resort Centment Central Central Central Central Central Central Central Central Central Central Central Centment Central Central Central Centment Central
2.8ʻO Fercic Ramum Sulfate Sulfate spell, sometuted resurated.

3 Instntunangpa

I ka wā o ka nānāʻana,ʻo ka mea i hoʻopiliʻia e pili ana i kaʻikeʻana i ka hoʻopiliʻana me nā keleawe keleawe a iʻole nā ​​huahana hiʻona,ʻo ka mea hoʻohanaʻokoʻa
3.1ʻO kaʻikepili kūʻokoʻa (e nānā i ke kiʻi) he 250ML kiʻekiʻe i hoʻohanaʻia, e hoʻohanaʻia a me ke aniani kūloko a me ke aniani kūloko a me ke aniani kūloko.
3.2 250 ML Break-Necker Clusked Flasks
3.3 mau wai kau wai wai, hiki ke kāohi i ke ea i ka mahana a hiki i 37 ° C.
3.4 G2 a iʻole G3 Glass Funnel.
3.5ʻO ka nui o ka palaʻai a iʻole ka wai wai.
3.6 PH PH SPECIEST SCOUNTER PROWE, hiki ke hōʻike i ka PH = 7 ± 0.1. Allyladed sulfur sellatillation.

4 nā kaʻina hana

4.1 Nā Kūlana Kūʻai Kūʻai
Ua hanaʻia nā mea kanu lāʻau dehydrated i loko o nā'āpana uniform a laila e hoʻohālike i nā barl carnules a me ke kāleka kāleka.
4.2 ka nui o ka nui
Kaupaona ma 10g simple, pololei a hiki i 0.01G.
4.3 Hoʻoholo
4.3.1 Ka Wai
E kau i ka mea i kaupaonaʻia i loko o kahi flask (3.1) me 100l o 40 °, a e pale ai i kahi pā o ke aniani. . ^.
4.3.2 favlyilletion
Ma hope o ka hoʻohuiʻana i ka 20mml o Ethanol 3.2) No laila,ʻo ia ka mea haʻahaʻa haʻahaʻa o ka condenser i kauʻia i ka hopena ammony hydroxided.
E hoʻomoʻa i ka flask (3.1) e ho'ōki i ka loaʻaʻana o ka lōʻihi ma hope o ka loaʻaʻana o ka 60 ml o ka laweʻana i ka wai.
E hoʻoponoponoʻia keʻano o keʻano i ka wā o ka hoʻokaʻawaleʻana e pale aku i ka spillage o nā bubbles gas a eʻae i ka helu kūpono e loaʻa ai.
4.3.3 titration
E hoʻokaʻawale i keʻano (a) i loko o ka flask clask me ka nitric acid (2.4) a hoʻopaʻaʻia i ka ph a me ka ph a me ka ph Hoʻohui pololei i 20.00 ml o kahi hopena maʻamau o ke kala kala ʻO ka hoʻokaʻawaleʻana (a) i kahi o ka mahana o ka lumi a me ka laweʻiaʻana o ka wai aniani a iʻole ka nui o ka wai. ) ua hōʻiliʻiliʻia. E hoʻohui i 5 ml o nitric acid (2.1) a me kekahi mau hāʻule o ka subric sultium sultium (28) a me ka lemerate mol / m) brown-ʻulaʻula a mālama iā ia no 0.5 min.

ʻO ka heluʻana o nā hopena loiloi

5.1 Ka helu helu
Ua hōʻikeʻia nāʻike o nā mea o ka collutile Oropility i nā kāleka dehydrated e like me ka nui o ka pakeneka o keʻano he nui o ka sulfur: mcvcx100057.0) 20 (21
Ma hea: X -ʻO ka pākēneka e pili ana i nā hui collatile glatosulfur i loko o nā kāleka deydrated,%;
C1 - kaʻikeʻana i ka hopena o ke kala kala kālā (2.6), mol / l;
C2 - ka hoʻohālikelikeʻana i ka sultium o ka ammonicate standard maʻamau (2.7), mol / l;
V - ka hapa o ka hoʻonā o ka ammonium slick ramperate maʻamau hoʻopau, ML;
0,057 - E hui pū ana i nā sulfur sull i ka nui o nā sulfur [(chi2ch = ch2) 2s] e like me ka helu kālā ma c = 1.000 mol / l;
M - Mass of the spemimen g. E hōʻikeʻia nā hopena i loaʻa i nā wahi kiko'īʻelua.
5.2 i ka hana
No ka mea hana likeʻole
5.3 Ka hoike halahana
E lawe i ka artithmetic iʻelua mau hoʻoholo e like me ka hopena.

Annation:

Ua manaʻoʻia kēiaʻano maʻamau e ka Bureau o nā meaʻai non-staple o kaʻoihana o kaʻoihana o kaʻoihana o ka poʻe Repubalika o Kina.
ʻO kēiaʻano maʻamau ke kuleana no ka hukiʻana e Beijing Good Good Good Institute.
ʻO ka hana nui o kēiaʻano koʻikoʻi sing bing, liu zhenkfang, li weudi, hoʻi i jiuzhen.
ʻO kaʻoihana o kaʻoihana o ka Repubalika o Kina 1988-02-29 i aponoʻia 1988-07-01 hoʻokō.