Kuedzwa kwevira remagetsi ashing process nzira yeindasitiri rabha

Iyo chaiyo maitiro ekurapwa kweashing yehalogen-isina maindasitiri rabha ndeaya anotevera:

1. Weresa ingangoita 0.15 g yemuenzaniso wakachekwa zvakanaka (huremu kusvika 0.0001g) mune 100mL porcelain crucible, isa mu (550±25) ℃ yekuedza yemagetsi muvira uye upise kwemaminitsi angangoita makumi matatu, woiburitsa woiisa mukati. dhizaini yekutonhodza kusvika kukamuri tembiricha. Bvisa ureme.

2. Zvadaro isa sampu yakayerwa mu crucible mugomba re asbestos plate, uye zvishoma nezvishoma kupisa crucible ne graphite digester mune yakanyatsopedzwa fume hood kudzivirira sampuli kubva pakubata moto kana kuputika kana kuputika. Mushure mekunge sampu yerabha yaora uye yakabikwa nekabhoni, tembiricha inowedzerwa kudzamara zvigadzirwa zvekuora zvinopera zvave kupera, zvichisiya zvisaririra zvakaomeswa nekabhoni.

3. Fambisa crucible ine zvakasara muchoto chemagetsi chekuyedza patembiricha ye (550±25) ℃, uye ramba uchichipisa kusvika chave dota rakachena pasi pemhepo.

4. Bvisa ash crucible kubva muchoto chemagetsi chekuedza, uise mu desiccator kuti utonhorere kusvika kune tembiricha yekamuri, uye uiyera kune iri pedyo 0.1 mg.

5. Isa crucible ine madota zvakare muchoto chemagetsi chekuyedza pa (550±25) ℃ kana (950±25) ℃ kweanenge maminetsi makumi matatu, chibudise wochiisa mudhishi kuti chitonhore kusvika patembiricha yekamuri, chitore. kunze uye uyere zvakare.

6. Dzokorora matanho ari pamusoro apa, kupisa uye kutonhora, kusvikira kusiyana kwehuremu hakusi kupfuura 1mg.