The ash of samples was soaked and dissolved in 0. 5 mol/L HC1. After the addition of total ion strength adjustment buffer(TISAB) , the fluoride contents were detected with the fluoride selective electrode.

 
  • 灰分用0.;5mol/L HCl浸泡;加入總離子強度調節緩沖劑(TISAB)后用氟電極測定氟。
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