LIN Liang-qiu,HUANG Han-bing,LIU Jing-song,QIU Zi-ye,WU Zi-qi,ZHANG Zhuo-min,LI Gong-ke.Rapid Analysis of Trace Thiram in Fruits and Vegetables Based on a Hydrophobic Interface-SERS Platform[J].Journal of Instrumental Analysis,2026,45(10):2218-2223.
LIN Liang-qiu,HUANG Han-bing,LIU Jing-song,QIU Zi-ye,WU Zi-qi,ZHANG Zhuo-min,LI Gong-ke.Rapid Analysis of Trace Thiram in Fruits and Vegetables Based on a Hydrophobic Interface-SERS Platform[J].Journal of Instrumental Analysis,2026,45(10):2218-2223.DOI: 10.12452/j.fxcsxb.25100501.
Rapid Analysis of Trace Thiram in Fruits and Vegetables Based on a Hydrophobic Interface-SERS Platform
This study constructed a hydrophobic interface-surface-enhanced Raman spectroscopy(SERS) detection platform based on a porous surface i
nfiltration method and investigated the formation process of three-dimensional silver nanoparticle hotspots on this platform through computational simulations. The surface infiltration conditions and detection parameters were optimized in detail,including an infiltration time of 30 min,a heating voltage of 4.0 V,a laser power of 20%,and a volume ratio of substrate solution to analyte solution of 1∶5. Then,a rapid analytical method for trace thiram in fruit and vegetable samples was established with a linear range from 0.05 to 2.0 μmol/L and a limit of detection(LOD) of 0.02 μmol/L. In the rapid analysis of real fruit and vegetable samples,the spiked recoveries ranged from 89.2% to 113%,and relative standard deviations ranged from 2.1% to 7.0%(
n
=3). These results indicate that the established method is sensitive and accurate,and suitable for the rapid analysis of trace thiram in fruits and vegetables.
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