Carbon monoxide (CO) is a commonly poisonous gas. It is important to detect CO in daily life. Herein. a new and sensitive surface enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) coupled di-mode method was developed for CO. https://www.roneverhart.com/Paistinpannu-rst-kupari-o-28-cm-3-L/