• Digestion

    The latest technology for your digestion needs, A new era in digestion.

  • Distillation & Titration

    High-precision systems with unique predictive titration.

    Distillation & Titration
  • Extraction

    New products for your extraction needs.

  • Protein Determination/ Kjeldahl

    High-precision Kjeldahl systems with flexible wireless communication.

    Protein Determination/<br>Kjeldahl
  • Fat Determination/ Soxhlet

    New products to cover your needs within fat determination.

    Fat Determination/ Soxhlet

About LiquidLINE

We provide solutions for Food industries and Laboratories. Measuring of Protein, Fat and Fiber according to reference methods such as Kjeldahl Protein (TKN). We also provide solutions for Nitrogen determination and general wet chemistry methods such as extraction, distillation, digestion, hydrolysis and titration. Our application laboratory can help you solve analytical problems.

We offer products such as Kjeldahl Analyzers, Distillation Units, Hot Solvent Extraction units, Digestors, Acid Hydrolysis units and consumables.

Our ambition is to bring innovative solutions for laboratories, high precision at low cost. We use our 30 years of experience in gas analysis to revolutionize food analysis.



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OPSIS AB is a a global company that develops, manufactures and markets state-of-the-art, innovative analysis systems since 1985.

The OPSIS LiquidLINE division provides Liquid and Wet Chemistry analysis instruments to food and environmental customers worldwide.

The OPSIS gas division provides gas analysis and process control systems. See www.opsis.se for more information about these systems.



OPSIS LiquidLINE speaking at Midwest AOAC Conference May 23-25, Minneapolis

Anders Broberg, OPSIS LiquidLINE Manager Global Sales and Support, will be speaking about detection limits for Kjeldahl at the AOAC conference Wednesday May 24th at 4:00 p.m.



Better at Protecting the Environment – Measurement in Waste Water

All plants and animals require nitrogen as a nutrient to synthesize amino acids and proteins. Access to nitrogen is vital for the environment, and farms often provide additional supply, using fertilizers. However, nitrogen in waste water and sewage sludge is often negative since it contributes to nutrients in wrong areas.


Kjeldahl Analysis Finding Less than 0.013 mg of Nitrogen

Typically, the Kjeldahl Method and Kjeldahl Instruments will give detection limits down to 0.1 mgN, and this is the same for the OPSIS LiquidLINE KjelROC Analyzer.


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