The invention belongs to the technical field of
drug detection, and particularly relates to a method for detecting
methamphetamine through
surface enhanced Raman spectroscopy, which includes the following steps: step I, pretreating a to-be-detected sample, so as to form sample solution; step II, preparing gold
sol or silver
sol; step III, uniformly mixing the
test sample solution obtained through the step I and the gold
sol or the silver sol obtained through the step II, so as to form the to-be-detected sample that is on standing; step IV, enabling the mixed to-be-detected sample obtained through the step III to be dripped on a slide and naturally evaporated for Raman spectrometry, thereby obtaining the SERS
spectrogram of the gold sol and the to-be-detected sample or the SERS
spectrogram of the silver sol and the to-be-detected sample; and step V, comparing the SERS
spectrogram of the to-be-detected sample with the standard SERS spectrogram of the
methamphetamine, so as to determine whether the sample contains the
methamphetamine. The method for detecting the methamphetamine is simple to operate and quick to detect, has low sample consumption and detection cost, and can be widely applied to the detection field of the
drug.