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Epsilon 1 for Ultra Low Sulfur (ULS)

Compliant analysis with low running costs

Epsilon 1 ULS is the ideal analytical solution. Pre-calibrated in the factory, our instrument is an out-of-the-box solution for analyzing low sulfur content in fuels, complying with ISO 13032 and many other sulfur-related international test methods including ASTM D4294, ISO 20847, ISO 8754, IP496, IP336, and JIS K2541-4.

Epsilon 1 ULS gives you precise and accurate data starting at 5 ppm sulfur and chlorine with minimal sample preparation and no need for helium - ensuring you can keep your total running costs to a minimum.

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Epsilon 1 is a superior-quality benchtop X-ray fluorescence instrument, pre-calibrated for the analysis of ultra-low sulfur in automotive fuels. It provides full compliance with the latest international test methods, including the most stringent: ISO 13032. The results of the repeatability test for sulfur are well within the limits set by this standard. 

Epsilon 1 ISO - periodic table.jpg

Epsilon 1 ISO - sequence chart.jpg

Looking to carry out trace analysis of chlorine in crude oils? We provide this as another pre-calibration option for the Epsilon 1 ULS instrument.  

Features and Benefits

Maximum sensitivity for sulfur and chlorine

The new thin-window vanadium anode X-ray tube, specifically designed and manufactured by Malvern Panalytical, ensures high sensitivity and top-quality measurements. Using vanadium as the anode material is ideal for quantifying sulfur and chlorine without interference from possible line overlaps in the XRF spectrum, leading to more reliable and accurate results.

Also, you’ll be happy to know that vanadium and nickel analysis is possible at levels you require to protect your catalysts. 

Maximum sensitivity for sulfur and chlorine

No need for helium gas

Epsilon 1 gives you precise and accurate data with minimal sample preparation and running costs. With the high sensitivity of the excitation and detection components, you don’t need helium gas to achieve compliant ISO 13032 results. The air pressure and temperature sensors in the instrument, combined with advanced software algorithms, make sure every measurement result is stable and independent of the environmental conditions. These innovations keep the total running costs to a minimum.

No need for helium gas

Self-contained system

A built-in computer running Microsoft Windows 10 with a powerful CPU and 120 GB hard drive gives you the flexibility to store and handle thousands of results. The high-resolution, 10.4” LCD touch screen is ideal for easy walk-up operation.

Self-contained system

Easy communication

USB and network connections for standard computer peripherals support extended use, application development, and seated operator.

Easy communication

Spillage protection

A spillage protection foil is in place to shield the delicate heart of the system. In case of spillage, the foil can be replaced easily by the operator.

Spillage protection

Key Applications

This instrument configuration is designed and manufactured for petrochemical applications, specifically for refineries where sulfur and chlorine are critical elements.

Epsilon 1 complies with many sulfur-related international test methods for EDXRF instruments, such as:

ISO 13032
ASTM D4294
ISO 8754
ISO 20847
IP 336
IP 496
JIS K2541-4


Sample handling X-ray tube Detector Software features
Highly repeatable sample positioning High-stability ceramic side window High-resolution, typical 135 eV Operator mode with big buttons for easy operation
Typical 5 ml liquid 50 micrometer thin window (Be) 8 micrometer thin window (Be) Advanced mode with many features
Spillage protection against liquids Vanadium anode, ideal for sulfur and chlorine analysis high count-rate capacity
Sulfur analysis in compliance with ISO 13032 Software-controlled, max voltage 30 kV
Chlorine analysis in crude oils


Standards (Reference materials)


Accurate elemental analysis of RoHS restricted materials


Accurate analysis by XRF of toxic elements in polymers and plastics


Claisse is always there to meet your needs!


Epsilon software

Epsilon software is the XRF analysis software platform that is used with PANalytical’s range of Epsilon 1 and Epsilon 4 benchtop EDXRF systems.

Epsilon software


The software provides a rapid, simple and non-destructive means of analyzing coatings, surface layers and multi-layered structures.


Omnian software enables users to achieve the best possible analysis when dedicated methods or certified standards do not exist.



A FingerPrint software module combined with an Epsilon EDXRF system is ideal for material testing when analysis speed is important but the actual composition is not of interest.


Guided Smart Install

When correctly installed your new Epsilon 1 will give you reliable analysis results. Installing an Epsilon 1 is straightforward: unpack the system, plug it in and follow the instructions, which we will guide you through. Finally, a simple radiation test completes the installation and confirms that your system is working safely. Yes, it is that easy to start using your Epsilon 1. And, more importantly, you can rest assured that your system is supplied with the necessary safety certification.
Smart install ensures you can get new instruments up and running even when unexpected circumstances or remote locations prevent an engineer from accessing your facility. For the Epsilon 1, we offer a guided smart installation, enabling you to install the system yourself and maintain the integrity of the instrument and its safety certification.

The advantages of guided smart install:

  • Get up and running fast
  • Save on installation costs
  • Install the system when it suits you
  • Extended 15-month warranty period

Find out more about smart install.



Solutions to maximize the return on your investment

To assure that your instrument remains in top condition and performs on the highest level, Malvern Panalytical offers a wide range of services. Our expertise and support services assure an optimal functioning of your instrument.


Service for a lifetime

  • Phone and remote support
  • Preventive maintenance and checkups
  • Flexible Customer Care Agreements
  • Performance certificates
  • Hardware and software upgrades
  • Local and global support


Adding value to your processes 

  • Sample preparation development/optimization
  • Analytical methodologies 
  • Turnkey solutions for XRD 
  • Operations via IQ/OQ/PQ, quality assurance (GLP, ISO17025) or round robins/inter laboratory studies
  • Automation of lab processes
  • Consultancy services

Training and education

  • Training on-site or at our competence centers
  • Broad range of basic and advanced courses on products, applications and software

Analytical services and calibration materials

  • Expert (XRF) analyses services
  • Oxides and trace analysis
  • Customized calibration materials