环境因素对食品和水中 元素含量检测结果的影响与对策

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中图分类号：TS201.6 文献标志码：A 文章编号：1674-0270（2025）32-0084-03

Impact of Environmental Factors on Elemental Content Detection in Food and Water and Corresponding Countermeasures

FANG Ping (Kaihua CountyCenterforDisease ControlandPrevention,Quzhou City,ZhejiangProvince,Quzhou 3243oo,China)

Abstract:This studyaims tosystematicall evaluatethe impactsoftemperature,humidity,andlighton thedetection resultsofCa,Fe,Zn,Cuinfoodand water,andtoestablishstandardized estingconditions.Theexperimentadopted Inductively CoupledPlasha Mass Spectrometry(ICP-MS)todeterminetheelementalcontentofsamplesunderdifrent environmental conditions.Single-factor experiments were conducted to analyze the effects of temperature (15~35 C ）, humidity ( 40% ~80%),and light intensity (O~1 Ooo lx).Response surface methodology was employed to optimize the environmental conditions,and the method wasvalidatedbefore being appliestoactual sampletesting.Theresults show that,for every 10 C increase in temperature,the detection deviation of Fe increases by 12.3% ~18.7 % ；when humidity exceeds 75% ,the recovery rate of Zn drops to 82.4% ；when light intensity > 500 lx,the oxidative loss of Cu reaches 15.6% Therefore,the optimized conditions are 20±2C (50±5)% humidity,with complete protection from light. Under these conditions, the determination accuracy of each element exceeds 95.8% ,withan SRSD

Key Words: environmental factors; elemental content detection; ICP-MS; quality control; food safety

1材料与方法

1.1 材料与试剂

及水样基质。（剩余6271字）