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有效的电压测量分析用于大米中检测全无机,具有增强的灵敏度和选择性

Wei Tian¹, Jiawei Guo², Songxue Wang¹

¹Academy of National Food and Strategic Reserves Administration, Beijing 100037, China.

Food chemistry: X

|December 6, 2024

概括

一种新的电压测量方法准确量化了大米中的无机. 这种快速技术使用磁性复合材料和改性电极进行敏感和选择性检测,确保食品安全.

科学领域:

分析化学分析化学
食品化学食品化学
环境科学环境科学

背景情况:

米中的污染造成了严重的食品安全问题.
准确量化无机对于风险评估至关重要.
现有的方法可能是复杂和耗时的.

研究的目的:

开发一种快速,简单和准确的电压测量方法,用于在大米中总的无机量化.
为了提高灵敏度和选择性,以可靠地检测.
为了验证该方法与既定技术相对应.

主要方法:

使用酸和L-氨酸进行样本预处理,同时提取和分类 (As(III)).
使用磁性复合材料去除干扰物质从大米矩阵.
采用用金纳米粒子和L-半氨酸修改的丝网打印电极进行电压检测.

主要成果:

无机的低检测极限为0.018 mg/kg.
具有很高的灵敏度和选择性,具有良好的干扰耐受性.
与标准分析技术ICP-MS显示出极好的相关性 (R2 = 0.995).
成功应用于分析商业大米样本中总无机.

结论:

开发的电压测量方法提供了一种可靠和有效的方法来监测大米中的无机.
这种技术为确保食品安全和监管合规提供了有价值的工具.
该方法的简单性和准确性使其适合常规分析.

关键词:

消除干扰的干扰消除干扰无机是一种无机.经过修改的丝网印刷电极.大米大米大米大米大米电压测量是一种电压测量.

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