新型光膜传感器测定草甘膦

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-02-10 DOI:10.1016/j.foodchem.2025.143361

Sabiha Elif Ekerim, Neşe Taşci, Melike Fırlak Demirkan

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引用次数: 0

摘要

自20世纪70年代以来，草甘膦一直是一种广泛使用的除草剂。然而，如果长期接触草甘膦，会导致严重的健康问题。因此，快速、可靠地测定草甘膦成为一个重要问题。本研究提出了一种高选择性、高灵敏度的荧光聚合物膜传感器，具有宽线性工作范围（1-18 ppb）和低检出限（0.84 ppb），可用于草甘膦的检测。所研制的传感器可测量pH值 8.0的草甘膦，适用于实际样品，回收率在98.4 ~ 111.5之间。此外，该传感器可以在短时间内响应，并且可以重复使用多达200次。在95% %的置信水平下，方法的重复性为10.47 ± 0.11，相对标准偏差为1.76。所有这些特点使该方法成为草甘膦检测的一个雄心勃勃的替代工具。

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Determination of glyphosate with a novel optic membrane sensor

Glyphosate has been a widely used herbicide since the 1970s. However, glyphosate causes serious health problems if exposed to it for a long time. Therefore, quick and reliable determination of glyphosate becomes an important issue. This study proposes a solution to this issue with a highly selective and sensitive fluorescent polymeric membrane sensor for glyphosate determination with a wide linear working range (1–18 ppb) and low detection limit (0.84 ppb). The developed sensor can measure glyphosate at pH 8.0 and is applicable to real samples with recovery percentages varying between 98.4 and 111.5. Additionally, this sensor can respond in a short time and can be reused up to 200 times. The repeatability of the method was found to be 10.47 ± 0.11 at a 95 % confidence level and the relative standard deviation was 1.76 for the analysis results of 10 ppb samples. All these features make proposed method, an ambitious alternative tool for glyphosate detection.

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.