THz inspection and fingerprint spectrum for 12 drugs

One detection method, twelve kinds of technologies, applied in the field of THz detection and fingerprint spectrum of twelve kinds of drugs, can solve the problems such as ionization of drug molecules, high energy, and uncertainty of drug types

Inactive Publication Date: 2006-08-16
CAPITAL NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

X-ray scanning can only distinguish the shape of drugs, but cannot determine the type of drugs, and because of its high energy, it is easy to ionize drug molecules, thus affecting the analysis of drugs

Method used

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  • THz inspection and fingerprint spectrum for 12 drugs
  • THz inspection and fingerprint spectrum for 12 drugs
  • THz inspection and fingerprint spectrum for 12 drugs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The THz detection method of twelve kinds of drugs is realized on the THz time domain spectrum detection system, refer to figure 1 , the femtosecond laser generated by the laser passes through the mirror M1, the diaphragm 1 and the beam splitter 2 in turn, after passing through the beam splitter 2, the femtosecond laser is divided into two beams, and the transmitted beam is stronger as the pumping light, It is incident on the emitting crystal 4 (InAs) after passing through the chopper 3, the aperture D2, the mirrors M2~M5, the aperture D3~D4, and the focusing lens L1, and generates THz waves through the optical rectification effect, and the THz waves After passing through the parabolic mirrors PM1-PM4, it is focused on the detection crystal 6 (ZnTe) at the focal point of the parabolic mirror PM4. A beam of reflected light is used as the detection light. It passes through a series of mirrors M6-M11, and there is a focusing lens L2 between M9 and M10. Then it passes throug...

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Abstract

A method for detecting twelve types of narcotic drugs by utilizing TH2 technique includes preparing narcotic drugs standard sample; applying TH2 detection technique to carry out detection on said standard samples and setting up standard fingerprint chart bank; utilizing standard set-up fingerprint chart bank to carry out detection on unknown matter including six types of morphine narcotic drugs, three types of ice narcotic drugs, two types of drugs controlled by the state and one type of new narcotic drugs.

Description

technical field [0001] The present invention relates to the detection method and fingerprint spectrum of twelve kinds of drugs. The twelve kinds of drugs refer to: heroin hydrochloride, morphine hydrochloride, acetylcodeine, codeine phosphate, sulfamic acid O 3 Monoacetylmorphine, Hydrochloride O 6 Monoacetylmorphine, methamphetamine hydrochloride, MDA hydrochloride, MDMA hydrochloride, caffeine hydrochloride, ephedrine hydrochloride, and ketamine hydrochloride belong to the technical field of drug detection. Background technique [0002] At present, the methods used to identify the type and content of drugs mainly include: chromatography, capillary electrophoresis, mass spectrometry and Fourier transform infrared absorption spectroscopy. What these methods have in common is that they all belong to destructive testing, that is, the inspected object is destroyed after the inspection is completed. Destructive testing is a big problem for the identification of drugs, because ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/00G01N30/06G01N21/31
Inventor 沈京玲梁来顺许晓宇张存林
Owner CAPITAL NORMAL UNIVERSITY
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