Method for enhancing Raman signal of particulate matter in solution

The invention provides a method for enhancing Raman signals of particulate matters in a solution. The method comprises the following steps: providing a to-be-detected particulate matter solution sample; providing a charged metal nano material, wherein the charge of the metal nano material is opposite to that of the detected particulate matter; uniformly mixing the tested particulate matter solution sample with the metal nano material to obtain a mixed solution; and performing Raman detection on the mixed solution. The Raman characteristic peak of the detected particulate matter can be enhanced, and real-time on-site Raman detection of the particulate matter in the aqueous solution is realized. 本发明提供一种增强颗粒物在溶液中拉曼信号的方法，包括：提供被测颗粒物溶液试样；提供带电荷的金属纳米材料，所述金属纳米材料的电荷与被测颗粒物的电荷相反；将所述被测颗粒物溶液试样与所述金属纳米材料均匀混合，得到混合溶液；对所述混合溶液进行拉曼检测。本发明可以增强被测颗粒物的拉曼特征峰，实现水溶液中颗粒物的实时现场拉曼检测。