Products » Wet Chemistry Analysers

Opsis LiquidLINE

AMPCS Ltd specialists in wet chemistry analysers to determine protein, nitrogen and fat content.

Our clients include dairy, food and beverage, animal feed, pet food, agricultural, pharmaceutical and petro-chemical businesses.

We are able to repair and service your current wet chemistry instrumentation – including Foss chemical analysis equipment – as well as providing state of the art innovative analyser systems from OPSIS LiquidLINE that can be tailored to the specific needs of your business.

Please see below for information on:

  • the SoxROC extraction unit for solvent extraction from a range of substances including food, animal feed, water, rubber, plastic and textiles
  • their range of KjelROC analyzers and digestors that measure protein and nitrogen content using the Kjeldahl method.

To talk to one of our technical experts about the full range of OPSIS LiquidLINE instrumentation and the support and service plans available, phone +44 (0)1621 843354 or email

SoxROC Extraction Unit

SoxROC Extraction Unit

The OPSIS LiquidLINE SoxROC Extraction Unit is an automated Soxhlet instrument that can extract fat according to official methods. The instrument is based on Randall and Twisselmann techniques, using hot solvent and a closed system to reduce extraction time versus manual Soxhlet. The SoxROC follows officially approved methods for fat extraction. The SoxROC is designed to be flexible and is therefore also capable of extractions using other solvents and samples. Available in 2 and 6 position models.

Reduce time & reduce errors

With SoxROC, you can extract as many as 42 samples per day with no loss in precision or accuracy. Automation of all extraction steps and an innovative batch handling reduces risk for errors. Typically up to five times faster than the classical Soxhlet technique.

Reduce costs

Unique sealing system with more than 90% recovery reduces cost for solvents and efficient water cooling reduce water consumption.

A large selection of seals, cups and standard thimbles reduces costs when changing between applications and solvents.

One single compact system without wires or computers reduces costs for installation and operation.

Add flexibility & add safety

Solvent LiquidlINE SoxROCUnique control of solvent removal adds flexibility for different applications.

Security with high standard against dust, liquids and explosives. All valves close to solvents are ATEX classified.

Operator safety is important and the SoxROC is equipped with protection shield, closed addition of solvents, and easy removal of recovered solvents.

Data sheet for LP1006 SoxROC Extraction Unit


KjelROC Analyzer


Our KjelROC range of analyzers offers innovative, precise and cost efficient solutions for Distillation, Titration and determination of protein according to the Kjeldahl method. Unique Preditive Titration, patent pending, gives several advantages in the lab.

Increase efficiency – reduce costs

The possibility to send and receive results without additional software, computers and cables, significantly reduces the integration and IT costs.

Process data files directly in the KjelROC Analyzer. This reduces costs when integrating with your LIMS or other systems.

Improved analytical results

The OPSIS LiquidLINE Predictive Titration lowers the Relative Standard Deviation (RSD) and increases flexibility with different indicators.

Large, refillable Burette saves time and costs when moving between high and low content protein.

Performance Tracking saves time when following the instrument performance over time.


The unique predictive titration system lowers the RSD. The 50 ml burette with automatic refill makes it easy to change between high and low protein analysis.

Low maintenance costs

Prepared for ISO 17025 and GLP features, reduce time and costs when integrating the instrument into the Lab procedures.

Component lifetime and maintenance costs are optimized with the help of OPSIS component trace ability program. It allows easy diagnostics and follow-up of both instruments and components.

Adaptive workflow

The KjelROC Analyzer is fully flexible to adapt to your existing lab procedures or you can use our ready to use programs. You are always in control with our customization touch screen, where you can define your own workflow.

Data sheet for KjelROC Analyser


KjelROC Distillation Unit

KjelROC Distillation Unit CROPPED

Our KjelROC Distillation unit offers full control of the distillation process at a low cost.

Unique service system & reduced maintenance costs

The unique service system saves time and costs for maintenance.

Component lifetime and maintenance costs are optimized with the help of OPSIS component trace ability program. It allows easy diagnostics and follow-up of both instruments and components.

Prepared for ISO 17025 and GLP features, reduce time and costs when integrating the instrument into the Lab procedures.

Expandable system – low cost for upgrade

The KjelROC Distillation Unit can easily be upgraded to a full KjelROC Analyzer,

Automation and traceability – increased efficiency

The KjelROC Distillation Unit is completely automatic with programmable addition of alkali, water and receiver solution.

There is full traceability with the possibility to track samples as well as retrieve log files from the instrument. The wireless system makes it even easier to send and receive information.

Data sheet for LP1002 KjelROC Distillation Unit


KjelROC Digestion Blocks


Standard in all our digestion blocks are select able programs, timer functions and possibility to select between Celsius and Fahrenheit. Our more advanced blocks offer an automatic motor rack

Automatic programs save time

Automatic programs  make the KjelROC Digestors easy to use. Alarm signal and/or automatic cooling simplifies the surveillance of the process.

Automation saves time & reduces costs

KjelROC Digestors Advanced models saves even more time with fully automatic motor rack

Lower maintenance costs

All Digestors and Scrubbers built with high endurance materials. From high quality Borosilicate Glass to high quality EN 1.4404 Stainless steel.

Data sheet for KjelROC Digestors


KjelROC Scrubber


Environmental concerns are always important to consider and therefore we recommend to use scrubbers together with our KjelROC Digestion blocks.

Reliable & easy with a small footprint

The KjelROC Scrubbers are built to work in an environment with high corrosive fumes and high temperatures. All materials are carefully selected. Small footprint and ease of use has been prioritized when designing the OPSIS KjelROC Scrubbers.

High standard

Water cooling possibility is standard in all KjelROC Scrubbers, as well as the possibility to adjust the suction power.

Data sheets for LP1005 KjelROC Scrubber

KjelROC Consumables

Good analysis requires preparation and supplies of reliable consumables like Glass Tubes of Borosilicate and Kjeldahl Tablets. OPSIS offers a complete range of Glassware and Kjeldahl Tablets for your daily laboratory needs. OPSIS brings you high quality, time savings and cost savings.

Kjeldahl Tablets


KT-230-A, Universal Copper, Cu, 9%, 5g

KT-210-A, Missouri Tablet, Cu, 0.3%, 5g

KT-220-A, Micro Copper, Cu, 9%, 1.65g

KT-240-A, Titanium, Cu-TiO2, 3.71g

KT-250-A, Wieninger, Se, 0.1%, 3.5g



TU-210-A, KjelROC Tubes 250 ml

TU-220-A, Conical Flask 250 ml

TU-230-A, Laboratory Glass Bottle with threaded Cap

Data sheets for LP1004 KjelROC Consumables