Isithando somlilo sikagesi sokuhlola umlotha inqubo yenjoloba yezimboni

Inqubo ethile yokwelashwa komlotha yerabha yezimboni engena-halogen imi kanje:

1. Kala cishe u-0.15 g wesampula esike kahle (isisindo sifike ku-0.0001g) ebhodweni le-porcelain elingu-100mL, lifake esithandweni somlilo sokuhlola sikagesi esingu-(550±25) ℃ bese usishisa cishe imizuzu engama-30, uyikhiphe bese usifaka phakathi. i-deiccator ukuze iphole ekamelweni lokushisa. Khipha ukale.

2. Bese ufaka isampuli esikalini ku-crucible embotsheni ye-asbestos plate, bese ushisisa kancane kancane i-crucible nge-graphite digester ku-hood ekhishwe kahle ukuze uvimbele isampula ekubambeni umlilo noma ukuchaphazeka noma ukuchichima. Ngemuva kokuthi isampula yenjoloba ibolile futhi ifakwe i-carbonized, izinga lokushisa liyakhuphuka kuze kube yilapho imikhiqizo yokubola okuguquguqukayo isicishe yaphela, kusale kuphela izinsalela ezomile zekhabhoni.

3. Hambisa inhlama equkethe okusele esithandweni sikagesi esihlolwayo ezingeni lokushisa elingu-(550±25) ℃, bese uqhubeka nokuyisishisa ize ibe umlotha ohlanzekile lapho kungena umoya.

4. Khipha i-ash crucible esithandweni sokuhlola sikagesi, uyibeke ku-desiccator ukuze uphole ekamelweni lokushisa, futhi ukale ku-0.1 mg eseduze.

5. Phinda ufake isiphambano esiqukethe umlotha esithandweni sikagesi esivivinywayo ku-(550±25) ℃ noma (950±25) ℃ cishe imizuzu engama-30, sikhiphe bese usibeka emshinini wokuwashisa ukuze uphole ngokwezinga lokushisa elilingana negumbi, thatha. akhiphe futhi akale futhi.

6. Phinda izinyathelo ezingenhla, ukushisa nokupholisa, kuze kube yilapho umehluko wesisindo ungekho ngaphezu kwe-1mg.