为了解山东省小麦及小麦粉中本底铝含量，为小麦粉制品中铝的限量要求提供参考，连续两年随机采集山东省16地市小麦、小麦粉、麦麸及小麦粉制品共计550份，采用电感耦合等离子体质谱仪对其铝元素含量进行检测。结果表明，山东省小麦与小麦粉中铝元素含量存在显著性差异（P<0.05），小麦中铝元素含量为4.04~69.1 mg/kg、平均值为22.4 mg/kg，小麦粉中铝元素含量为0.250~43.8 mg/kg、平均值为5.82 mg/kg ；铝元素在不同时期、不同地市小麦、小麦粉样品中普遍存在，不同年份、不同地市小麦、小麦粉中铝元素含量存在显著性差异（P<0.05）。最终选取92.6、44.0 mg/kg分别作为山东省小麦、小麦粉中铝本底值的参考值。研究结果可以为小麦粉及其制品的限量标准制定与修改提供数据支撑，为食品检验与食品安全监管部门提供科学依据，建议各地根据实际情况制定小麦粉及其制品中的铝元素限量指标。

In order to understand the content of background aluminum in wheat and wheat flour from Shandong Province and provide a reference for the aluminum limit requirements of wheat flour products, a total of 550 samples of wheat, wheat flour, wheat bran and wheat flour products in 16 cities of Shandong Province were randomly collected for two consecutive years, and their aluminum contents were determined by an inductively coupled plasma mass spectrometer. The results showed that there were significant differences in aluminum content between wheat and wheat flour in Shandong Province (P<0.05). The aluminum content in wheat ranged from 4.04 to 69.1 mg/kg with an average value of 22.4 mg/kg, whilst the aluminum content in wheat flour ranged from 0.250 to 43.8 mg/kg with an average value of 5.82 mg/kg. Aluminum was generally commonly present in wheat and wheat flour samples collected in different periods and cities, and there were significant differences (P<0.05) in the content of aluminum in wheat and wheat flour of different years and cities. Finally, 92.6 mg/kg and 44.0 mg/kg were selected as the reference values of aluminum background values for the wheat and wheat flour in Shandong Province. The research results can provide data support for the formulation and modification of the limit standard of wheat flour and its products, and offer a scientific basis for food inspection and food safety supervision departments. It is suggested that the limits of aluminum in wheat flour and its products should be set according to the actual situation.

山东省市场监督管理局科研项目（2021年度）