中华人民共和国国家环境保护标准HJ923-2017土壤和沉积物总汞的测定催化热解-冷原子吸收分光光度法Soilandsediment—Determinationoftotalmercury—Catalyticpyrolysis-coldatomicabsorptionspectrophotometry（发布稿）本电子版为发布稿。请以中国环境出版社出版的正式标准文本为准。2017-12-28发布2018-04-01实施环境保护部发布i目次前言.................................................................................................................................................ii1适用范围.........................................................................................................................................12规范性引用文件.............................................................................................................................13方法原理.........................................................................................................................................14试剂和材料.....................................................................................................................................15仪器和设备.....................................................................................................................................26样品.................................................................................................................................................27分析步骤.........................................................................................................................................38结果计算与表示.............................................................................................................................49精密度和准确度.............................................................................................................................510质量保证和质量控制...................................................................................................................511废物处理........................................................................................
