Graphite digestion analyzer is a commonly used electric heating device for laboratory sample pretreatment, mainly used for acid digestion, evaporation to remove acid, and sample concentration of samples.
The user adds the sample and reagent to the heating tube, assembles the condenser tube, and places it into the heating hole. The equipment uses the good thermal conductivity of high-purity fine graphite and far-infrared radiation heating technology according to the set temperature to uniformly and effectively reflux and digest the sample.
It mainly consists of a constant temperature heating system, heating module, temperature control system, and reaction components. The heating module usually adopts a cast aluminum furnace body with good thermal conductivity, and multiple heating holes are evenly distributed inside; The temperature control system monitors the temperature in real-time through temperature sensors, achieving accurate automatic temperature control; The reaction component generally includes a hard borosilicate glass heating tube and an air condenser tube.
Core performance characteristics
High throughput and uniform heating: Using high-purity fine graphite formed by isostatic pressing as the heating module, combined with far-infrared radiation heating technology, it can quickly heat up, and the temperature difference between holes can be controlled within ± 1 ℃ to ensure consistent heating of samples at different positions.
Corrosion resistance and easy maintenance: The graphite surface is treated with Teflon (PFA) coating, which can withstand strong acid and alkali corrosion, facilitate cleaning and maintenance, and extend the service life of the equipment.
Intelligent temperature control and safety protection: equipped with PID intelligent temperature control system, with self-tuning function, accurate temperature control and rapid response. At the same time, the whole machine integrates multiple electrical protection mechanisms such as overvoltage, overcurrent, and overheating, and is equipped with over temperature sound and light alarms.
Environmental Protection and Waste Gas Treatment: Some graphite digestion instruments can be equipped with waste gas neutralization systems, which effectively eliminate acidic and harmful gases generated during the digestion process through condensation recovery, chemical neutralization, and drying filtration steps.
Widely used in environmental monitoring, agricultural food inspection, product quality control, scientific research, disease prevention and control, etc., it can be used for digestion treatment of soil, sewage, food, cosmetics, biological samples, etc., providing preparation for subsequent experiments such as elemental analysis.