ICS编号 CCS编号 团 体 标 准 T/CHESXXX—2021 水质氰化物的测定 连续流动分析—分光光度法 Waterquality–Determinationofcyanideby continuousflowanalysisspectrophotometry 2021-XX-XX发布 2021-XX-XX实施 全国团体标准信息平台 T/CHESXXX—20XX 2中国水利学会发布 全国团体标准信息平台 T/CHESXXX—20XX I目次 前言.........................................................................................................................................................................1 1范围.....................................................................................................................................................................1 2规范性引用文件................................................................................................................................................1 3术语和定义........................................................................................................................................................1 4方法原理............................................................................................................................................................1 4.1连续流动分析仪工作原理......................................................................................................................1 4.2总氰化物化学反应原理..........................................................................................................................1 4.3游离氰化物化学反应原理......................................................................................................................1 5试剂和材料........................................................................................................................................................2 6仪器和设备........................................................................................................................................................4 7样品.....................................................................................................................................................................4 7.1样品采集..................................................................................................................................................4 7.2样品保存..................................................................................................................................................4 8分析步骤............................................................................................................................................................4 8.1消除干扰..................................................................................................................................................4 8.2仪器调试..................................................................................................................................................4 8.2.1仪器调试方法...............................................................................................................................4 8.2.2灵敏度和噪音检查.......................................................................................................................4 8.3校准曲线绘制..........................................................................................................................................5 8.4样品测定..................................................................................................................................................5 9结果计算与表示.................................................................................................................................................5 9.1结果计算..................................................................................................................................................5 9.2结果表示..................................................................................................................................................5 10精密度和正确度.............................................................................................................................................5 10.1精密度.........................................................................