Sample pretreating method for metal content analysis

Sample pretreating method for metal content analysis

  • CN 1,743,831 A
  • Filed: 08/31/2004
  • Published: 03/08/2006
  • Est. Priority Date: 08/31/2004
  • Status: Active Application
First Claim
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1. , the sample pretreating method used of a kind of metal content analysis comprises that oil sample is warming up to 450~

  • 700 ℃

    in noble gas evaporate ashing, makes volatilizable thing evaporation wherein, and metallic element is retained in the residue after the evaporation;

    With the residue oxidation, make metallic element wherein be converted into metal oxide;

    Add the inorganic acid solution oxide, be mixed with the specimen aqueous solution.

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