Need support?

Please leave a message

ColdBlock™ - Sample Digestion System - CB6L, CB12L, CB30S

ColdBlock™ Sample Digestion System is the first sample digestion technology using focused short-wave infrared (IR) radiation and a ColdBlock, which delivers exceptional performance even in difficult matrices. Digestion of refractory chromite takes 10 minutes without any requirement of perchloric and hydrofluoric acids.

Technical Specifications

Set Contents CB12L Digester HDC Controller
CB12L 12 channel large sample size digester 12 channels 2 zone controls
1 x HDC manual controller 2 m controller connector cable 2 m power supply cable
24x Standard and 24x Large test tubes 25 kg 10 kg
30 x 25 x 55 cm 25 x 11.5 x 30 cm
Accepts both Standard and Large test tubes 240 VAC / 30 A
NEMA 6-30 plug


ColdBlock™ Digestion has revolutionized sample digestion by offering:  

  • Very rapid digestions (10 minutes or less) 
  • Simplified digestion procedure with rapid heating and cooling for enhanced sample throughput 
  • Excellent accuracy and reproducibility 
  • Cost-efficiency 
  • Reduced environmental impact 
  • Improved occupational safety 
  • Broad applicability spectrum across numerous industries


  • Environmental: Lead in Paint, Mercury in Fish Tissue, Lead in Drinking Water, Wastewaters, Soils, Sludges, Metal Alloys
  • Mining: Gold, Silver, Uranium, Rare Earth Metals, base Metals & chromite in mining samples - 0.2-30g sample sizes
  • Food & Agriculture: Fertilizers, plant tissue, rice flour, soy flour, milk powder
  • Pharmaceutical:

    • Sample digestion completely dissolved Olmetec 40mg tablets in 15 minutes using Sulfuric acid in combination with Nitric acid.

    • Magnesium Sterate, Titanium Dioxide, Talc

Cooling Requirements Each system includes the ColdBLock digester and ColdBlock controller, an external chiller is required upon operation.

Cooling Requirements (per CB12L digester)

Recommended Temperature Range -5℃ - 20℃
Cooling capacity 300W @ 20℃
Pump capacity flow rate 15 L/min
Minimum filling (reservoir) volume 3L

ColdBlock™ shortens digestion process to just minutes!

Application Notes

  • Agriculture
  • Environmental
  • Food & Beverage
  • Mining & Minerals
  • Pharmaceutical
ColdBlock TechnologiesColdBlock Technologies was founded in 2014 to develop, test, and bring to market their innovative sample digestion technology, ColdBlock Digestion. Since that time, the company has collaborated with government, academia, and industry to demonstrate their innovative solution while elevating the efficiency, productivity and safety of sample digestion.