hj 503-2009 水质 挥发酚的测定 4-氨基安替比林分光光度法

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1、中华人民共和国国家环境保护标准HJ503-2009代替GB7490-87水质挥发酚的测定4-氨基安替比林分光光度法Waterquality—Determinationofvolatilephenoliccompounds—4-AAPspectrophotometricmethod（发布稿）本电子版为发布稿。请以中国环境科学出版社出版的正式标准文本为准。2009-10-20发布2009-12-01实施环境保护部发布目次前言....................................................................II1适用范围............

2、......................................................12规范性引用文件............................................................13术语和定义................................................................1方法1萃取分光光度法........................................................24方法原理................................

3、..................................25干扰及消除................................................................26试剂和材料................................................................37仪器和设备................................................................48样品................................................

4、......................49分析步骤..................................................................510结果计算.................................................................611精密度和准确度...........................................................612质量保证和质量控制....................................................

5、...7方法2直接分光光度法........................................................713方法原理.................................................................714干扰及消除...............................................................715试剂和材料...............................................................716仪器和设备.......

6、........................................................717样品.....................................................................818分析步骤.................................................................819结果计算.................................................................820精密度和准确度...............

7、............................................921质量保证和质量控制.......................................................9附录A（规范性附录）酚贮备液的标定...........................................10附录B（资料性附录）4-氨基安替比林的提纯...........