The acid-removal hot plate is machined from high-purity graphite. It serves as an essential tool for chemical reactions such as COD digestion (150℃), total phosphorus and total nitrogen detection (105℃). Widely adopted in food testing, biological sample analysis, wastewater treatment, soil environmental monitoring, import & export commodity inspection, pharmaceutical chemical industry, geology & metallurgy, CDC and other sectors. It can also work as a dedicated acid-removal station matched with microwave digesters to solve the difficulty of acid fume removal after microwave digestion.

Shenzhen Bangqi Chuangyuan Technology also supplies constant temperature urinary iodine digesters with innovative technology, featuring fast temperature ramp, programmable control, complete digestion and high efficiency, specially used for urinary iodine testing in health institutions and CDC laboratories.

Adopting exclusive anti-corrosion material resistant to strong acid, alkali and high temperature, customized exclusively for lab environments. Equipped with intelligent digital temperature display and surround-type uniform heating. Energy-saving and fast heating, freely configurable temperature and timing parameters to cut labor cost and greatly boost testing throughput.

1. Uniform Heating: High thermal conductivity high-purity graphite heating block ensures ultra-even temperature distribution across all digestion wells; temperature difference between wells less than ±1℃
2. Full Anti-Corrosion Construction: Isostatic pressed high-purity graphite withstands strong acid, alkali and high temperature, easy to wipe clean. Both graphite heating body and equipment cabinet are coated with special anti-corrosion coating for full corrosion protection
3. Programmable Temperature Control: Large intelligent LCD touchscreen supports up to 100 segmented heating programs to set temperature ramps and holding durations; auto power-off after full procedure completion
4. Ultra-Precise Temperature Regulation: Built-in PID self-calibration to adjust heating rate freely; temperature control accuracy ±0.1℃, single-well temperature fluctuation ≤±1.0℃
5. Energy Saving & High Throughput: Double-layer cabinet structure with dual insulation of air interlayer and thermal lining to cut power consumption by 75% during digestion. Max batch capacity up to 60 samples for high-efficiency pretreatment
6. Split Separate Design: Heating main unit placed inside fume hood; temperature control console installed outside the hood to avoid acid fume corrosion on electronics
7. Temperature Calibration & Variable Power Compensation: Displays actual sample reaction temperature, supports targeted temperature correction for different matrices; equipped with variable power heating and automatic temperature compensation system

Notice: Custom sizes and special functional configurations are available upon customer request.

Specially engineered for lab pretreatment: ideal equipment for sample heating digestion, acid evaporation, boiling and post-digestion acid removal. Perfect matching accessory for atomic absorption spectrometer (AAS), atomic fluorescence spectrometer (AFS) and other analytical instruments.

Used to test heavy metals and trace elements including lead, cadmium, chromium, mercury, arsenic, zinc, selenium, manganese in food, medicine, dairy products, etc.; digest soil samples for heavy metal quantification; applied for blood sample testing in CDC laboratories.

1. Both flat heating plates and graphite digesters can serve as acid removal stations, subject to compatibility with digestion tube dimensions. The core difference lies in heating mode, which determines temperature uniformity and batch capacity. Ordinary flat heaters are low-cost basic equipment without segmented program heating, similar to traditional laboratory electric furnaces.
2. Flat heating plates deliver inferior temperature uniformity compared to graphite digesters.
3. Graphite digesters can realize acid removal functions, but acid-removal hot plates do not contain all advanced functions of independent graphite digestion instruments.
4. Graphite digesters support wider temperature ranges and more flexible multi-segment heating programs than dedicated acid removal plates.

Fundamentally they adopt identical graphite well structure; the main distinction is positioning: acid removal hot plates are designed as auxiliary equipment paired with microwave digesters and matched to microwave digestion tube sizes, while graphite digesters are standalone complete pretreatment instruments for full digestion workflows.

Shenzhen Bangqi Chuangyuan Technology Co., Ltd. specializes in R&D, production and sales of laboratory automatic pretreatment equipment and analytical instruments. Our product portfolio includes vertical shakers, fully automatic digesters, graphite digestion instruments, general electric heating plates and dedicated graphite acid-removal hot plates.