Drug Testing

Hair Drug Detector

• Optical Detection System: Including light sources, optical lenses, filters, and other components, used to emit specific wavelengths of light and irradiate hair samples, and collect and filter the fluorescent signals generated by hair under excitation light to detect and analyze drugs and their metabolites.
• Mechanical Transmission Device: Responsible for controlling the movement and positioning of the hair sample to ensure that the sample can accurately enter the detection area and remain stable during the detection process to obtain accurate and reliable testing results.
• Electronic Control System: As the control center of the instrument, it is responsible for coordinating and controlling the work of various components, including the switch of light sources, the parameter settings of the optical system, the movement control of the mechanical transmission device, data collection and processing, etc., to realize an automated testing process and data management.
• Data Processing Software: Used to process and analyze the collected fluorescent signals, convert them into numerical values or charts related to the drug content, and determine whether the test result is positive according to the preset threshold and algorithm, and at the same time, it can store, query, and print testing data for users to view and manage testing records.
• Hair Processing Reagent: Before testing, it is necessary to use a specific hair processing reagent to clean, grind, and digest the hair sample to remove impurities and interfering substances on the hair surface and enable the drugs and their metabolites in the hair to be fully released for the instrument to detect.

Drug Testing Instrument

• Sensor: One of the core components of the testing instrument. According to different testing principles, different types of sensors can be used, such as electrochemical sensors, optical sensors, mass spectrometry sensors, etc., to sense and detect the presence and concentration information of drugs in the sample.
• Sampling System: Responsible for introducing the sample to be tested into the instrument and accurately transporting it to the detection area. The sampling system usually includes sample syringes, sampling valves, sample pretreatment devices, etc., to ensure the purity and stability of the sample and improve the accuracy of the detection.
• Separation System: For complex sample matrices, such as blood, urine, etc., a separation system needs to be used to separate the drug components from other impurities for subsequent detection and analysis. Common separation technologies include gas chromatography, liquid chromatography, etc., and the corresponding separation systems include chromatographic columns, mobile phase delivery devices, temperature control systems, etc.
• Detection System: Based on the signal output of the sensor, qualitative and quantitative analysis of the drug is carried out. The detection system usually includes signal amplifiers, analog-to-digital converters, data processing units, etc., for amplifying, converting, and processing the weak electrical signals output by the sensor, and finally obtaining the type, content, and other detection results of the drug.
• Display and Output System: Displays the detection results in an intuitive way to users, such as liquid crystal displays, printers, etc., to facilitate users to view and record the detection data. At the same time, some testing instruments can also transmit the detection results to a computer or other external devices through a data interface for further data processing and management.