中国乳业Issue(4)：56-60,5.DOI:10.12377/1671-4393.24.04.11
原子吸收光谱法检测铅项目的应用分析
Application of Graphite Furnace Atomic Absorption Spectrometry for the Determination of Lead Items in Dairy Products under Optimal Conditions
鲍晓凤 1李春立 1赵文君 1康明月 1任秀芳 1张淑丽 1吴丰吉1
作者信息
- 1. 内蒙古蒙牛乳业科尔沁有限责任公司检测实验室,内蒙古通辽 028000
- 折叠
摘要
Abstract
The latest edition of GB 2762-2022 Limit of Pollutants in Food of the National Standard for Food Safety strictly controls the limit index of lead items in dairy products.In order to adapt the limit value standard,the National Health Commission and the State Administration for Market Regulation revised and issued the GB5009.12-2023 Determination of Lead in Food of the National Standard for Food Safety method,which reduced the detection limit and quantitation limit of liquid food.The change of national standard has put forward higher requirements for the instrument conditions and parameters settings for the detection of lead items by graphite furnace atomic absorption spectrometry.In this study,the influence of different temperature and light spots at different positions of graphite tubes in each step of the temperature program on the labeling recovery results were compared and analyzed during the detection of lead items in liquid dairy products by graphite furnace atomic absorption spectrophotometer,and the optimalconditions of the temperature program were determined.At the same time,the adjusting methods and positions of the element light spots in the detection of samples with different lead contents were determined.关键词
石墨炉原子吸收光谱法/乳制品/铅/升温程序/光斑Key words
graphite furnace atomic absorption spectrometry/dairy product/lead/temperature program/light spot引用本文复制引用
鲍晓凤,李春立,赵文君,康明月,任秀芳,张淑丽,吴丰吉..原子吸收光谱法检测铅项目的应用分析[J].中国乳业,2024,(4):56-60,5.
