Meet the FRACTION FINDER ULTRA, featuring a brand new, ultra-sensitive sensor.

The FRACTION FINDER is the first and only in-line molecular sensor for botanical extraction and fractional distillation. Now, with the FRACTION FINDER ULTRA (short for “ultra-sensitive”) we are serving new processes that require extreme detection, such as Chromatography and Conversion Reaction.

Our technology’s purpose is to assist laboratory managers, technicians, and consultants to optimize their processes. This system will help improve the quality, consistency, and value of products.


Features & Details

Aside from the new sensor and the optional adapter, the FRACTION FINDER ULTRA’s features are the same as the standard FRACTION FINDER.

  • Ultra-Sensitive Sensor – The sensor has a new filter that allows it to be significantly more sensitive; it also has a new magnetic locking mechanism, anodized aluminum apertures, and the sensor strap is rotated 90°
  • Molecule Indicators – Detect and monitor key molecules in real-time (Delta-9 THC, THCa, CBD, CBDa, Degradates, Chlorophyll, Lipids, or Custom)
  • Intensity Values – Use standard digits to track molecule intensity values
  • Auto Highlighting – Simply check any given molecule’s checkbox and the screen will automatically identify and highlight the region that the molecule fluoresces at
  • Record and Review – Start and stop recording run data with the touch of a button for easy CSV review
  • Software Updates – Upgrade to free, feature-rich software releases easily from the field (currently V1.2.3)
  • Seamless Integration – Install directly onto distillation glassware (short path condenser, wiped film flask, or select an Arometrix adapter)
  • Technical Support – Support via phone call, SMS text message, and email
  • Bonuses – Made in the USA | 30-day money back guarantee | Arometrix Academy | “Fraction Finder for Chromatography” Instagram group chat
Why did we create this ultra-sensitive sensor?

For certain processes, such as Chromatography, highly sensitive detection of individual fractions is essential. Generally speaking, the more solvent involved in the process means the more sensitive the sensor needs to be.

For processes like Conversion Reaction, where you are looking for Cannabinoid synthesis, high sensitivity helps as it will better distinguish molecular peak structure changes. For these processes, operators require a high degree of sensitivity that you simply cannot get out of the standard FRACTION FINDER sensor.

NOTE: If you are an existing customer, you have the option to buy or upgrade to a standalone Ultra-Sensitive Sensor.

Application: Chromatography Process Monitoring

During Chromatography, it can be challenging to time the Cannabinoid changes for precise separation, let alone do it precisely and consistently. The traditional method of ‘fraction finding’ is through a run-of-the-mill UV detector in-line, but that comes with issues, such as constraints in flow and opacity. Other techniques include eyesight, color changes, or lab results. However, all of these methods are unscalable, inconsistent, and can delay time-to-market.

The new unit is an incredibly useful tool for vigorous process monitoring during normal-phase chromatography, reverse-phase chromatography, and color remediation chromatography.

  • Normal-Phase Chromatography: Tracking the emergence of individual Cannabinoids; indicates when THC emerges, then when CBD emerges
  • Reverse-Phase Chromatography: Tracking the emergence of individual Cannabinoids; indicates when CBD emerges, then when THC emerges
  • Color Remediation Chromatography: Detect heavy pigments such as Degradates & Chlorophyll
Application: Conversion Reaction Process Monitoring

This unit assists with detection of the point of Cannabinoid conversion. It can indicate when the first Cannabinoid appears and fully monitor its conversion for the purpose of a precise synthesis. This, in turn, will optimize the synthesis efficiency. For more information on this, please visit our provisional application note.

In-Situ Fluorescence Spectroscopy

The FRACTION FINDER technology utilizes a principle known as fluorometry, a spectroscopic method of measuring molecules based on how they interact with light. The system primarily consists of the following:

  • Optical Sensor: Think of this as the “eyes” of the system. It operates in the near-UV fluorescence regime. The sensor wraps around a glass tube then connects and transmits to the pole-mounted display.
  • Touch-Screen Graphical Display: Think of this as both the “brains” and “face” of the system, as this interprets the signal and displays wavelength information.

Product Details


Which fractions can the Fraction Finder detect?

Review our cheat sheet for a detailed list.

Is the software upgradeable?

Yes. And it’s free to update! We release updates every few months. The Fraction Finder software is updatable from the field and accessible via Please note that this sensor uses the same digital display and software as the standard FRACTION FINDER package.

Can this be used for pesticide detection?

No, this sensor can NOT be used for pesticide detection.



Features our brand new ultra-sensitive sensor, serving Chromatography and other processes that require extreme detection

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