Iziko lombane lokulinga inkqubo ashing inkqubo irabha yoshishino

Inkqubo ethile yonyango lwe-ashing yerabha ye-halogen-free yamashishini imi ngolu hlobo lulandelayo:

1. Viyisha malunga ne-0.15 g yesampulu esikwe kakuhle (ubunzima ukuya ku-0.0001g) kwi-100mL ye-porcelain crucible, uyibeke kwi-(550±25) ℃ yesithando somlilo sovavanyo kwaye uyifudumeze malunga nemizuzu engama-30, uyikhuphe kwaye uyibeke kuyo. i-deiccator ukuze iphole kubushushu begumbi. Thatha ngaphandle kwaye ulinganise.

2. Emva koko faka isampuli esikalini kwi-crucible emngxunyeni we-asbestos plate, kwaye ushushu ngokukhawuleza i-crucible nge-graphite digester kwi-fume hood ekhutshwe ngokufanelekileyo ukukhusela isampuli ekubambeni umlilo okanye ukutshiza okanye ukuphuphuma. Emva kokuba isampulu yerabha ihlanjululwe kwaye i-carbonized, ubushushu buyanda de iimveliso zokubola eziguquguqukayo ziphantse ziphelelwe, zishiya kuphela iintsalela ezomileyo zekhabhoni.

3. Hambisa i-crucible equlethe intsalela kwiziko lombane lokulinga kwiqondo lobushushu (550±25) ℃, kwaye uqhubeke uyifudumeza ide ibe luthuthu olucocekileyo phantsi kokuphefumla.

4. Thatha i-ash crucible kwisithando somlilo sombane, uyibeke kwi-desiccator ukuze upholile kwiqondo lokushisa, kwaye ulinganise kwi-0.1 mg esondeleyo.

5. Faka i-crucible equlathe uthuthu kwakhona kwiziko lombane elilingayo (550±25) ℃ okanye (950±25) ℃ malunga nemizuzu engama-30, yikhuphe kwaye uyibeke kwidesika ukupholisa kwiqondo lobushushu begumbi, yithathe. Yikhuphe kwaye uyilinganise kwakhona.

6. Phinda kwakhona la manyathelo angentla, ukufudumeza kunye nokupholisa, de kube umehluko wesisindo ungekho ngaphezu kwe-1mg.