煤碳中氯的测定方法探讨

Discussion of Methodologies in Qualification of Chlorine in Coal Guangdong Province Material Testing Centre

采用Na2CO3为灰化剂,NaOH为熔剂,以标准加入比浊法测定煤炭中的氯。解决了使用艾氏卡熔剂空白值高,测定低含量氯方法不稳定的问题。本方法经国家一级标准物质验证,分析结果与标准值基本相符。方法适用于0.005%～1%各种煤样的测定。

Using Na2CO3 as the fogging agent and NaOH as the solvent, this method employed standard addition turbidimetry to quantify the presence of chlorine in coal. It overcomed high Aisika solvent blank value and instability of measuring low content of CI. The method was verified by the national standard and the result matched with the standard value.