牙膏中丙烯酰胺的测定　高效液相色谱 串联质谱法 Determination of acrylamide in toothpaste— High performance liquid chromatography tandem mass spectrometry  ICS  71.100.40 CCS  Y 43   中华人民共和国国家标准 GB/T 44364—2024 2024-08-2 3发布 2025-03-0 1实施     国家市场监督管理总局 国家标准化管理委员会 发 布 目　　次 前言   ·····································································································   Ⅲ 1     范围   ··································································································   1 2     规范性引用文件   ······················································································   1 3     术语和定义   ···························································································   1 4     原理   ··································································································   1 5     试剂和材料   ···························································································   1 6     仪器设备   ······························································································   2 7     试验步骤   ······························································································   2      7.1     试样溶液的制备   ·················································································   2      7.2     测定   ······························································································   2      7.3     标准工作曲线绘制   ···············································································   3      7.4     试样测定   ·························································································   3      7.5     空白试验   ·························································································   4 8     结果计算   ······························································································   4 9     回收率   ································································································   4 10     精密度   ·······························································································   4 11     检测限和定量限   ·····················································································   4 附录A （资料性）    丙烯酰胺标准物质/标准样品及内标信息   ··········································   5 附录B （资料性）    丙烯酰胺及其内标标准溶液的多反应监测色谱图   ·································   6 GB/T 44364—2024     Ⅰ