摘要
本文对国内外有关方法进行了研讨，提出：在乙酸介质中，室温浸取萤石试样，于浸取液中，用ＡＡＳ法或ＥＤＴＡ法测定钙量，用Ｚｒ－ＸＯ光度法测定氟量；或在含钙乙酸介质中，热浸取萤石试样，用去碳酸钙萤石样作空白。确立了萤石中碳酸钙的测定方法。此法已用于萤石一级标准物质中碳酸钙的测定。结果证明，该法准确可靠。
A new metnol is proposed to determine the CaCO_3 in fluorspar. The sarnple is immersedin acetic acid medium room temperature ,The calcium dissolved （in the medium）IS DETERMINED BY AASor EDTA titration methol．The fluorine is determined by Zr-XO spectrophotmetry or the fluorsparsample is dipped in hot acetic acid medium containing calcium using CaCO_3 free fluorspar as a blank，then determined by the method mentioned above .Thedetermination mthod of calcium carbonate wasestablished．The proposed method has been applied to determine calcium carbonate in the first class refer-ence material of fluorspar.The results demonstrated that this method was accurate and reliable.
出处
《冶金分析》
CAS
CSCD
北大核心
1994年第2期14-17,共4页
Metallurgical Analysis
关键词
萤石
碳酸钙
测定
篎luorspar，Calcium carbonate，Determination
