中华人民共和国国家环境保护标准HJ896-2017水质丁基黄原酸的测定吹扫捕集/气相色谱-质谱法Water quality—Determination of butyl xanthate—Purge and trap/gas chromatography-mass spectrometry（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2017-12-21发布2018-02-01实施环 境 保 护 部发布目次前言..................................................................................................................................................ii1适用范围..........................................................................................................................................12规范性引用文件..............................................................................................................................13方法原理..........................................................................................................................................14干扰及消除......................................................................................................................................15试剂和材料......................................................................................................................................16仪器和设备......................................................................................................................................27样品..................................................................................................................................................38分析步骤..........................................................................................................................................39结果计算与表示..............................................................................................................................510精密度和准确度.............................................................................................................................711质量控制和质量保证.....................................................................................................................812废物处理...............................