Intelligent microbial sampler is a device used to collect microbial samples in the environment. Through intelligent control and effective sampling technology, it improves the accuracy, efficiency, and convenience of sampling, and is widely used in multiple fields. Mainly used to collect microbial samples from environments such as air, water, and soil, providing key sample support for public health monitoring, environmental research, industrial production, and other fields.
working principle
Based on different sampling techniques: Inertial impact method utilizes high-speed airflow impact to cause microbial particles to settle onto the collection medium; The filtration method intercepts microbial particles in the air through filter materials; Centrifugal concentration method uses centrifugal force to enrich microbial particles to the bottom of the sampling chamber; The virtual impact law concentrates microbial particles in a specific collection area through graded airflow separation.
Combining intelligent technology: Intelligent microbial samplers usually integrate flow sensors, temperature and humidity sensors, pressure sensors, etc., to monitor the sampling environment in real time, and support preset sampling programs through automatic control systems, automatically adjust parameters, and alarm. In addition, sampling data can be exported through USB, wireless transmission, and other methods, compatible with laboratory information management systems.
Intelligent microbial samplers typically consist of the following core components:
Sampling head: designed as an anti pollution structure, supporting the replacement of different sampling media to ensure the authenticity and accuracy of the samples.
Air pump: Provides stable airflow with a wide flow range to meet different sampling needs.
Concentration module: such as cyclone separator, membrane concentration device, etc., to reduce sample volume and improve the efficiency of subsequent analysis.
Control system: Embedded microprocessor equipped with LCD display or touch interface, supports preset sampling program, automatically adjusts parameters and alarms.
Sensor integration: Built in flow sensors, temperature and humidity sensors, pressure sensors, etc., monitor the sampling environment in real time to ensure the stability of sampling conditions.
After each experiment, at least 300 milliliters of sterilized purified water should be used to rinse the pipeline, avoiding the use of disinfectant ethanol or salt containing rinsing solution to prevent crystallization and precipitation. If using filters, regular ultrasonic cleaning is required to prevent clogging. The pump head needs to be treated with moist heat sterilization and avoid external contamination.
Regular calibration and inspection
Regularly calibrate the flow parameters according to the instructions and use a standard soap film flowmeter for review. Check whether the filter cup fixing ring, sealing ring and other components are loose or aging, and replace the sealing parts if necessary.