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基于头部空间单滴微提取的数字图像色度学和ICP-MS用于调味品和饮料样品中硫化物的双模式分析

Xiaoxiang Zhou¹, Chunhui Wu¹, Yang Zuo¹

¹Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources, Ministry of Education, College of Chemistry and Material Science, Sichuan Normal University, Chengdu, Sichuan 610068, China.

|September 12, 2025

概括

一个使用二氧化纳米片的新型双模式传感器平台,能够灵敏地检测硫化物. 这种方法结合了数字色度测量和ICP-MS,用于在各种样本中便携且准确地分析硫化物.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
环境科学环境科学

背景情况:

硫化物检测对于环境监测和工业过程至关重要.
现有的硫化物检测方法可能是复杂的,昂贵的,或缺乏便携性.
二氧化 (MnO2) 纳米板为传感应用提供独特的特性.

研究的目的:

开发一个便携式和灵敏的双模式传感平台,用于硫化物检测.
为了利用MnO2纳米片的双功能性质,作为氧化剂和染色剂.
结合数字图像色谱和感应合等离子体质谱 (ICP-MS) 进行增强的硫化物分析.

主要方法:

头部空间单滴微提取 (HS-SDME) 与数字图像色度计和ICP-MS.相结合.
使用悬浮的MnO2纳米片作为滴滴与硫化物产生的H2S反应.
基于智能手机的RGB值分析用于色度检测和ICP-MS用于微量Mn2+检测.

主要成果:

使用彩色测量方法实现了硫化物1.3μmol L-1的检测极限 (LOD).
在使用ICP-MS时,为硫化物达到1.2nmol L-1的高度敏感的LOD.
对30多种潜在干扰物表现出极好的选择性.
成功地应用了分析硫化物在调味品和饮料中的方法,回收率高 (90-109%).

结论:

开发的双模式传感平台为硫化物检测提供了灵敏,选择性和便携式的方法.
MnO2纳米板是有效的双功能材料,用于同时测色和基于ICP-MS的硫化物传感.
这种方法为复杂矩阵中硫化物的现场分析提供了有价值的工具.

关键词:

数字图像测色仪数码图像测色仪食品样本食品样本头部空间单滴微提取微提取在ICP-MS中,使用的是ICP-MS.MnO(2) 的纳米薄膜.硫化硫化物是一种硫化物.

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