Block Digestion System石墨消解系统
- Temperature range
- Ambient to 250 °C
- Temperature stability
- ±1 °C
消解仪

Photo for reference; configuration may vary by order.
Model No. DIG-0003 · Sample Preparation Equipment
凯氏消解系统
Protein in food and feed, and nitrogen in water, soil and fertiliser, are measured by Kjeldahl digestion in concentrated sulfuric acid. This block heats 6–40 tubes of 100–250 mL to 450 °C using multi-step ramping. Copper or selenium catalyst tablets with potassium sulfate are used. An exhaust manifold with scrubber handles acid fumes.
| Place of origin | China (dispatched from Shanghai) |
|---|---|
| Brand | Liquid International / OEM on request |
| Export packing | Fumigation-free plywood case or reinforced carton |
| Loading port | Shanghai / Ningbo (others on request) |
| Payment terms | T/T, L/C at sight (confirmed on quotation) |
| Trade terms | EXW, FOB, CFR, CIF, DAP |
Typical export terms — final terms are confirmed on the proforma invoice.
Protein in food and feed, and nitrogen in water, soil and fertiliser, are measured by Kjeldahl digestion in concentrated sulfuric acid. This block heats 6–40 tubes of 100–250 mL to 450 °C using multi-step ramping. Copper or selenium catalyst tablets with potassium sulfate are used. An exhaust manifold with scrubber handles acid fumes.
| Parameter | Value |
|---|---|
| Temperature range 温度范围 | Ambient to 450 °C |
| Block positions 加热位 | 6–40 tubes |
| Tube volume 试管体积 | 100–250 mL |
| Catalyst 催化剂 | Copper or selenium tablets |
| Salt 盐 | Potassium sulfate |
| Acid 酸 | Sulfuric acid, concentrated |
| Exhaust system 排气系统 | Manifold with scrubber |
| Programmes 程序 | Multi-step ramping |
| Temperature sensor 温度传感器 | PT1000 |
| Power supply 供电 | 220–240 V AC |
| Model No. | DIG-0003 |
| Place of origin | China (dispatched from Shanghai) |
Chinese national standards (GB/T, JJG) and international standards referenced for this product type. Test reports and certificates are supplied with the quotation on request.
Fumigation-free plywood case or reinforced carton
Every unit is power-tested before packing; enclosed in shock foam and moisture barrier; wooden cases comply with ISPM 15.
Shanghai / Ningbo (others on request)
Full container load (FCL), less-than-container load (LCL) or air freight; complete export documentation provided.
Complete the form below — an export engineer will send technical configurations and a formal proforma invoice within 24 hours.
Single instruments, complete laboratories or government tenders — our export engineers prepare the configuration, proforma invoice and shipping documents.