In this report, we present the use of surface-enhanced Raman scattering (SERS) in combination with the silver nanodendrites (AgNDs) for direct detection of melamine at low concentrations in liquid milk and infant formula. The fern-like AgNDs were electrochemically deposited onto the surface of silicon. The results showed that the molecular fingerprints of melamine in liquid milk and infant formula could be directly detected with the limit of detection (LOD) as low as 0.1 mg/L in liquid milk and 0.02 mg/L in infant formula without the need for the extraction procedure. A good linear relationship between melamine SERS intensity (at 682 cm^-1) and concentration of melamine in liquid milk and infant formula was obtained with the correlation coefficient (R²) reaches 0.9914 and 0.9952, respectively. These results suggest that SERS is a promising analytical method for application in food safety and environmental monitoring.

在本报告中，我们介绍了表面增强拉曼散射 (SERS) 与银纳米枝晶 (AgND) 的结合使用，用于直接检测液态奶和婴儿配方奶粉中低浓度的三聚氰胺。蕨类AgNDs电化学沉积在硅表面。结果表明，液态奶和婴儿配方奶粉中三聚氰胺的分子指纹可以直接检测，检出限（LOD）低至 液态奶0.1  mg/L，婴儿配方奶粉0.02 mg/L，无需检测。提取程序。三聚氰胺SERS强度（682  cm ^-1）与液态奶和婴儿配方奶粉中三聚氰胺浓度之间具有良好的线性关系，相关系数为（R ²) 分别达到 0.9914 和 0.9952。这些结果表明 SERS 是一种很有前景的分析方法，可用于食品安全和环境监测。