ATS Xtend™ Double UV Online

Real-time UV-Vis analysis of two dissolution testers with one spectrophotometer.

  • DOUBLE CAPACITY - Perform two dissolution tests in parallel and analyze up to 16 samples in real-time
  • SCALABLE - Avoid unnecessary validation work when increasing your capacity with identical modules
  • SAVE - Connect two dissolution baths to one UV-Vis spectrophotometer
  • ANALYZE - Exceed Pharmacopeia requirements with true double beam UV-Vis technology (CDD)
  • REALTIME - Simultaneous single or multi-wavelength analysis of your dissolution samples
  • COMPLIANT - Fulfills all Pharmacopeia requirements and 21 CFR part 11 regulations
  • CLOSED - No media replacement required for delayed release (DR) and modified release (MR) methods with multiple timepoints


Dissolution process steps with a fully automated UV Online dissolution testing system.


Automated sampling with AutoLift™, HollowShaft™, or stationary cannulas for AT Xtend dissolution tester.

Real-time for 16 vessels.

Seamlessly integrated UV-Vis analysis of the dissolved active is the quickest way to get dissolution results. An integrated UV-Vis spectrophotometer measures up to 16 samples simultaneously. For multi-timepoint methods, media replacement is not required as withdrawn sampling volumes are immediately returned into the vessels of your dissolution tester.

Use the CP piston pump to push through filters and handle foaming media and integrate a Specord UV-Vis spectrophotometer to analyse your samples immediately.

Share your UV-Vis.

To save investment costs, the ATS Xtend™ allows connection of two Xtend™ baths to one UV-Vis spectrophotometer with automated cuvette changer. The system can measure up to 16 samples per timepoint in real-time. Stacking the analytical device on top of two CP piston pumping modules saves additional bench space. 


Dissolution testing vessel with USP2 paddle method

Flexible sampling.

The ATS Xtend™ dissolution tester offers different possibilities for simultaneous automated sample withdrawal and filtration. Motorized lift-in/out cannulas, through-shaft sampling, or resident probes give you full flexibility to mimic your existing environment when replacing old dissolution systems. Use cannula filters, disc filters, or syringe filters for optimum results.


Xtend™ concept.

Modular, scalable, and future-proof are the core concepts behind Xtend™ dissolution tester. With a single core bath design for all automation levels, system expansion, modification, and method transfer have never been easier. Turn your single ATS Xtend™ Offline into a double system - without having to re-write SOPs or time-consuming validation. All modules and components are 100% identical.


The MPS brings 10-20 liters of degassed and heated medium to your dissolution baths.

Streamline your workflow.

Degassing at the USP and FDA recommended levels, the MPS brings 10-20 liters of degassed and heated medium to your dissolution baths. Operators can accurately dispense into individual vessels without re-aeration. Using your MPS for multiple dissolution baths will increase efficiency - and ensures compliance.



AT dissolution tester bath for manual and semi-automated testing.

AT dissolution tester

Xtend™ dissolution bath with flexible sampling & monitoring functions.

Benchtop pump with maintenance-free ceramic piston heads for dissolution tester USP 1256.

CP piston pump

Fast and powerful to push through filters and to handle foaming media.

Double beam UV-Vis spectrophotometer for realtime dissolution data

Specord® UV-Vis

High-performance double beam spectrophotometer with CDD.

Data management software for all methods, results, and users.

q-doc® software

All your data in one place with built-in 21 CFR part 11 compliance.


MPS media preparation station for manual and semi-automated dissolution testing systems.

MPS media station

Mobile media preparation station to heat, degas and dispense in vessels.

Benchtop filter station to automatically change syringe filters for dissolution tester USP 1256.

FS filter station

Automated change of syringe filters for multi-timepoint methods (DR/MR).

Peristaltic pump for UV online dissolution tester USP 1256.

IPC peristaltic pump

Simple peristaltic pump for UV online of non-critical products.

WinsotaxPlus Dissolution testing software 21 CFR Part 11 compliant, controlling all aspects of data capture and analysis with customized reporting and exporting.


Dissolution software to manage methods, results, and reports.

Video monitoring of the dissolution process in each individual vessel.


Video monitoring of the dissolution process in each individual vessel.