Microwave Digestion Instrument

Instrument Introduction

The Microwave Digestion System is a high-throughput, intelligent sample preparation instrument designed for modern laboratories. It uses a high-performance industrial-grade magnetron and intelligent temperature control technology, combined with a comprehensive multi-level safety protection system, to ensure a safe and controllable experimental process. The instrument offers high-throughput sample processing capability. Combined with 360° unidirectional continuous rotation technology, it ensures the uniformity and repeatability of sample processing within a batch. The control system uses non-contact infrared precise temperature measurement; a large touch screen allows intuitive monitoring of the full temperature curve, making operation intelligent and simple.

The whole machine uses a corrosion-resistant cavity and high-quality PEEK / PTFE digestion vessel components, with a sturdy and durable structure. With reliable core performance, comprehensive safety protection, efficient batch processing capability and user-friendly intelligent operation, this instrument is an ideal choice for efficient and safe sample digestion in food, environmental, geological and metallurgical industries.

Working Principle

The Microwave Digestion System works on the principle of combining microwave volumetric heating with high-pressure chemical reaction. Microwaves emitted by the core magnetron are absorbed by polar molecules (such as water and acid) inside the digestion vessel, causing high-speed molecular oscillation and friction, achieving rapid and uniform heating from the inside of the sample and greatly shortening the pretreatment time.

To ensure precise and controllable processes, the instrument uses non-contact infrared temperature sensing technology to monitor the temperature change of each reaction vessel throughout the process. The unique 360° unidirectional continuous rotation design ensures uniform heating of all samples and good consistency of results. Multiple safety mechanisms are built in: once an abnormal temperature or pressure is detected, microwave emission stops automatically and pressure-relief protection is activated, achieving the unity of efficiency and safety.

Instrument Features

1. Stable and reliable core performance and durable design

(1) High-performance magnetron system: Adopts an industrial-grade high-performance magnetron with intelligent power adjustment, achieving 0-1800 W non-pulse continuous variable-frequency output. The system structure is simple, runs stably and reliably, has high energy conversion efficiency, and is more cost-effective to maintain.

(2) High-quality digestion vessel components: The inner vessel uses corrosion-resistant polytetrafluoroethylene (PTFE), and the outer sleeve uses ultra-high-strength PEEK aerospace engineering plastic, providing a safe working pressure of up to 1500 psi (about 10 MPa) with excellent durability.

(3) Sturdy corrosion-resistant cavity: High-quality stainless steel microwave cavity, internally coated with multi-layer Teflon anti-corrosion coating, resists acid vapor corrosion, is easy to clean, and ensures long-term durability.

2. Comprehensive active intelligent safety protection system

(1) Dual pressure-relief safety protection: Each digestion vessel is equipped with an independent pressure-relief device, and the host has an automatic overpressure release function, forming dual protection of vessel body and system with high safety redundancy.

(2) Self-locking buffered explosion-proof door: Adopts a high-strength self-locking buffered door that can effectively release impact in case of abnormal pressure; combined with electromagnetic induction interlock, it ensures the safety of personnel and equipment.

(3) Real-time monitoring and automatic shutdown on abnormality: The temperature control system monitors throughout the process, and automatically cuts off microwaves when parameters exceed limits, achieving active safety intervention.

3. High-throughput, high-consistency efficient processing platform

(1) Maximum 16-position high-throughput design: Can process 16 samples per batch, significantly improving the efficiency of large-batch sample processing in the laboratory.

(2) 360° unidirectional continuous rotation: The turntable rotates continuously in one direction (not back and forth), ensuring an absolutely uniform microwave environment at each sample position, fundamentally guaranteeing excellent repeatability and parallelism of sample processing within a batch.

(3) Efficient rapid cooling: Built-in high-power corrosion-resistant exhaust system. After digestion, rapid air cooling can be activated to accelerate the cooling process and shorten the experimental cycle.

4. Precise intelligent control and operation system

(1) Intelligent non-contact temperature control: Uses high-precision non-contact infrared temperature measurement to directly monitor the real temperature inside the vessel, with precise temperature control (±0.5℃), no contamination and no consumables, and truly reliable data.

(2) Flexible method library: Supports user-defined digestion methods, easily meeting standardized or customized pretreatment processes for multiple samples.

(3) Intuitive human-machine interaction: Large color touch screen with a graphical interface, synchronously displaying the temperature and pressure curves inside the vessel in real time, with intuitive operation and a clear process.

(4) Multi-language support: Optional Android version enables multi-language customization.

Technical Parameters

1. Main Unit Technical Parameters

2. Control System Parameters

3. Digestion Device Parameters