1 results about "Molecular chemistry" patented technology

This invention discloses a method and application for detecting diazepam based on ratio Raman signals, belonging to the field of food safety and chemical detection technology. The method involves mixing an Au@4-NTP@Ag@ZIF-8 composite material solution with the sample solution to be tested, then dropping the mixture onto a substrate. A Raman spectrometer is used to acquire spectral data at an excitation wavelength of 532 nm, and the intensity ratio I is calculated. 1590 / I 1107 Substitute diazepam concentration to intensity ratio I 1590 / I 1107 The concentration of diazepam in the sample was calculated using a standard curve. The detection method of this invention exhibits high selectivity for diazepam and is unaffected by interference from macromolecules such as proteins, lipids, and glucose, as well as small molecule chemicals in complex matrices. It enables trace, rapid, and accurate detection of diazepam residues in aquatic products, and has significant application prospects in practical scenarios such as port clearance and on-site law enforcement.