六价铬的检测方法

QC/T XXXXX—XXXX I 六价铬的检测方法 QC/T XXXXX—XXXX II 目 次 前言 ............................................................................... III 引言 ................................................................................ IV 1 范围 .............................................................................. 1 2 规范性引用文件 .................................................................... 1 3 X 射线荧光光谱法 ................................................................... 1 3.1 原理 .......................................................................... 1 3.2 试剂和材料 .................................................................... 1 3.3 仪器和设备 .................................................................... 2 3.4 样品制备 ...................................................................... 2 3.5 分析步骤 ...................................................................... 2 3.6 结果分析 ...................................................................... 3 4 金属防腐镀层中六价铬定性试验 ...................................................... 3 4.1 原理 .......................................................................... 3 4.2 试剂和材料 .................................................................... 4 4.3 仪器和设备 .................................................................... 4 4.4 样品制备 ...................................................................... 4 4.5 试验 .......................................................................... 4 5 金属防腐镀层中六价铬含量测定 ...................................................... 6 5.1 原理 .......................................................................... 6 5.2 试剂和材料 .................................................................... 6 5.3 仪器和设备 .................................................................... 6 5.4 样品制备 ........