SofTA® 300S ELS Detector

Economical choice for demanding users 

SofTA 300S ELS DetectorThe SofTA 300S features an easy to use and learn four-button interface, as well as an informative dual zone display. Instrument output is always displayed, along with other user-selected instrument parameters. Changing the secondary parameter is as easy as using the up and down arrows on the keypad. Priced at thousands less than the competition, the Model 300S is a great choice for demanding users.

Standard Features

  • Increase sensitivity with programmable spray chamber and drift tube temperatures 
  • Eliminate clogs with specially designed nebulizer for flows for 0.2 mL/min to 5 mL/min 
  • Detect smaller limits with conventional HPLC columns​​


SofTA® 1300 ELS Detector

Improved sensitivity in a stackable module  

SofTA 1300 ELS DetectorImproved sensitivity in a stackable module, the  SofTA 1300 integrates UPLC capability into a package compatible with a typical HPLC or UPLC modular system. Its rugged horizontal package has the strength to be placed anywhere in your component stack. This ​stackability allows it to be located next to the column outlet, minimizing peak dispersion to attain the highest possible resolution. When it comes time to perform a routine maintenance procedure, the system can be slid out of its housing from the front, preventing any disruption to the remaining components in the system. 

Standard Features

  • ​Maximize sensitivity with a quantitative dynamic range of over 3 orders of magnitude 
  • Save space by installing with stacked module HPLC Systems 
  • ​Service unit easily with an “in place” pull out tray


SofTA® 2300 ELS Detector

UPLC performance with a compact design ​

SofTA 2300 ELS DetectorSofTA 2300 is designed for use with Rapid Resolution and Ultra Performance LC Systems (UPLC). This instrument is a fast ELS Detectors with peak widths less than 1 second. The narrow peak widths provide an extremely high sample throughput that is required in todays laboratories. Narrow peaks also result in improved signal to noise ratios, making these detectors about two times more sensitive than other models. 

This Detector also features dual gas operation, low-cost nitrogen is used as the nebulization and carries gas for non-volatile and high to moderately low consumption for semi-volatile analysis. Substituting Helium provides the maximum low-nanogram sensitivity for compounds with significant volatility by allowing ambient evaporation of the mobile phase.

Standard Features

  • ​Rely on outstanding semi-volatile-detection at ambient temperatures using patented Thermo-Split Technology and dual gas option 
  • ​Attain stable baseline and response consistency across gradients without gas optimization 
  • ​​​Achieve the narrowest peak widths of any ELS detector to meet the speed requirements of UPLC


Model 340CF Preparative ELSD Model 340CF Preparative ELSD

For use with CombiFlash® Systems​​​​

This detector is a modular component solution for the unique needs of preparative chromatography, allowing you to confidently see compounds without chromophores.

Standard Features

  • Patented technology precisely controls temperature 
  • Flexible signal filter option reduces baseline noise
  • Low gas consumption​


Monitoring of Synthesized Compound with a SofTA ELSD App NoteApp Note
SofTA ELSD Profile of Japanese Sake App NoteApp Note
ELSD BrochureBrochure
Model 340CF ELSD Verification ProcedureInstruction Sheet
Model 340CF ELSD Quick Reference CardQuick Start Guide
SofTA 1300 ELSD Quick Start GuideQuick Start Guide
SofTA 2300 ELSD Quick Start GuideQuick Start Guide
SofTA 300S ELSD Quick Start GuideQuick Start Guide
Teledyne ISCO SofTA ELSD Driver InstallationTechnical Note
340CF ELSD DetectorUser Manual
SofTA 1300 ELSD User ManualUser Manual
SofTA 2300 ELSD User ManualUser Manual
SofTA 300S ELSD User ManualUser Manual


SofTA 300S

SofTA 1300

SofTA 2300

Model 340CF

​11.5 x 9.8 x 18 in
(29.2 x 24.9 x 45.7 cm)
​6.3 x 13.8 x 17.2 in 
 (16 x 35.1 x 43.7 cm)
​​12 x 7.5 x 15 in 
 (30.5 x 19.1 x 38.1 cm)
​​9.8 x 18 x 11.5 in
 (24.9 x 45.7 x 29.2 cm)
​Weight ​25 lbs (11.3 kg)
​46 lbs (20.9 kg)
​21 lbs (9.5 kg)
​25 lbs (11.3 kg)
​Evaporative Zone Temperature
​Ambient to 120 °C ​Ambient to 120 °C ​Ambient to 120 °C​Ambient to 120 °C 
​Thermo-Split Chamber Temperature
​​10 to 60 °C ​​10 to 60 °C 10 to 60 °C​10 °C to 70 °C
​Liquid Flow Rate
​0.2 to 5.0 mL/min ​0.2 to 5.0 mL/min ​0.2 to 5.0 mL/min​5 mL/min to 1 L/min​
Gas Requirements
​65 ± 5 psi Nitrogen or other inert gas ​65 ± 5 psi Nitrogen or other inert gas ​65 psi Nitrogen or other inert gas​65 psi ± 5 psi nitrogen or other inert gas
​Gas Consumption
​Approx. 2.5 SLPM ​Approx. 3 SLPM ​Approx. 3 SLPM
Approx.  2.5 SLPM

For a full list of product specifications, see the relevant datasheet in the "Documents" tab.


When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.

 ‭(Hidden)‬ Model 340CF ELSD



 ‭(Hidden)‬ SofTA 2300 ELSD




 ‭(Hidden)‬ SofTA 1300 ELSD




 ‭(Hidden)‬ SofTA 300S ELSD