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● Superior HPLC Detection to Replace or Complement your Current Detection
● Sensitive Detection for a Wide Variety of Chemical Classes and Structures
● Easy to Use, Fast Start-up, No Consumable Parts, Low Cost of Operation
● Precise Vapor Phase Control with SofTA Exclusive Thermo-Split™ Technology
● Low Temperature Operation with Organic and Aqueous Mobile Phases
● Increased Productivity with One Button Content Sensitive Help, Automated System Diagnostics, and Condition Signaling
● 3+ Orders of Magnitude Provides Quantification for Every Application
Unique, Full Feature Color Display
The large touch screen displays all the detector settings and conditions from one of two screens. Simply touch the screen to modify setting, view the chromatogram in real time, integrate the results, annotate a method, send results to storage or a printer, and much more.
The Most Advanced ELSD is Now the Smallest
The SofTA Model 400 ELSD incorporates SofTA exclusive technology in a small case. This ELSD can integrate seamlessly into existing systems. Even small or crowded labs can benefit from the superior performance obtained with Thermo-Split™ technology. See our technical page Exclusive Thermo-Split™ Technology for more details on this exciting new concept in Evaporative Light Scattering Detection. (Patent Pending)
SofTA Features Increase Productivity, Enhance Performance and Reduce Cost of Operation
The Model 400 is extremely fast to set-up. Inject samples with in 30 minutes of power up by selecting the primary method. This set of conditions is appropriate for 90% of all HPLC applications. The Model 400 can also be optimized for superior detection of semi-volatile analytes and very low concentrations. Less volatile mobile phases and high flowrates are accommodated by selecting a sub-ambient Thermo-Split temperature.
Unlike halogen light sources, the laser does not need replacement and the intensity is maintained with internal feedback and displayed and recorded for reproducible results.
The fully warranted Teflon nebulizer provides superior solvent and chemical resistance, eliminates sample build-up even at high temperatures, does not permit sample carry over or increased noise from surface leaching. Reproducible droplet distributions are assured by thermally isolating the nebulizer from the spray chamber and drift tube, improving reproducibility between methods.
Low gas pressure and flow requirements allows use of cylinder, house systems, or gas generators. The pneumatic system is protected by a high pressure shut off, and provides a signal in the event of unstable or low pressure.
Increase Productivity with Unattended Operation
The Model 400 is built for unattended operation. If the detector encounters a deviation from one of the predefined set points, an audible signal accompanies a electronic signal which can be used to stop the mobile phase and auto sampler. A log of the detector set points is transmitted to a printer or storage device along with the chromatographic data. Never again be left guessing if your overnight runs are accurate.
Superior Performance
SofTA exclusive technology provides
● Very Low Detection Limits (10ng)
● Enhanced Dynamic Range (up to 0.25mg or 3+ orders of magnitude)
● Outstanding Reproducibility (<2%RSD)
● Narrowest Peak Widths (3sec)
● Low Evaporation Temperatures (3mL/min water at 10°C SP/40°C DT)
● No Baseline Shift with Extreme Gradients (0 –100% in 10 min)
Specification
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Model 400 |
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Dimensions |
9.8” W x 18” D x 11.5” H |
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Weigh |
25 lbs |
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Display |
6.5” color TFT LCD |
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User Interface |
Resistive Touch Screen |
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Evaporative Zone Temperature |
Ambient to 120°C |
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Thermo-Split™ Chamber Temperature |
10°C to 70°C |
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Liquid Flow Rate |
0.2mL/min to 5mL/min |
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Gas Requirements |
60 - 80 psi Nitrogen or other inert gas |
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Gas Consumption |
～2.5 SLPM |
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Operating Conditions |
Intended for indoor use only, 60°F to 85°F and <90% R.H. non condensing |
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Electrical Requirements |
Nominal 120 VAC, 50/60 Hz or Nominal 240 VAC, 50/60 Hz; 600 watts |
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Wetted Materials |
Stainless steel, glass, anodized aluminum, Teflon™ |
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Light Source |
650 nm Laser Diode, <5mW |
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Detector |
Hermetically sealed photo-diode/operational amplifier |
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Output Signal |
10mV, 5V, choosed by the Users |
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Interface |
RS232, Contact Closure |
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