PL-ELS 2100 Ice Evaporation at Sub Ambient Temperatures The PL-ELS 2100 Ice comprises an Integrated Cooled Evaporator in combination with the ‘evaporation gas’ technology to provide sub-ambient operation The ‘evaporation gas’ is increased to compensate for the increase in relative humidity at sub-ambient temperatures This approaches enables the PL-ELS 2100 Ice to operate at sub-ambient temperatures and as low as 10°C.
Introduction Even at ambient temperature the response of semi-volatile, low-molecular weight analytes can be poor. So the PL-ELS 2100 Ice has been designed to operate at sub-ambient temperature to improve the detection of semi-volatile compounds
PL-ELS 2100 Ice Design Features • Nebulisation • Same nebuliser as PL-ELS 2100 • Temperature Range: 25-90°C • Evaporation • Integrated Cooled Evaporator Tube • Temperature range: 10-80°C • Active Heating/Cooling • Same evaporation gas technology as PL-ELS 2100
PL-ELS 2100 Ice Design Feature for Sub-Ambient Operation Aqueous eluents can be removed at 15°C Organic solvents (e.g. THF) can be evaporated as low as 10°C The benefit of operating below room temperature provides maximum sensitivity for low-molecular weight semi-volatile compounds.
PL-ELS 2100 Ice Design Feature for Sub-Ambient Operation • The PL-ELS 2100 Ice can heat or cool rapidly, which reduces equilibration time. • 35°C to 10°C in 10 minutes • 15°C to 80°C in 11 minutes • Accurate temperature control of evaporator temperature eliminates external temperature effects
PL-ELS 2100 Ice Design Features • Detection • Same Optical Bench as PL-ELS 2100 • Digital Output 24bit (10Hz) via RS232 • Faster Time Constant (0.1 Secs) for UPLC
PL-ELS 2100 Ice • FOR VOLATILE SOLUTES • Sub-ambient Evaporator temperatures required - 10-30°C • PL-ELS 2100 Ice • Gas flow optimised for sub-ambient temperatures and mobile phase • 100% Water @15°C requires 2.2SLM of gas • Compounds with high vapour pressures, low MW pharmaceuticals, pesticides, hydrocarbons
Sub-Ambient Applications • The S/N ratio for thermally sensitive compounds such as Acetanilide is improved at sub-ambient temperatures • In addition, the response of compound’s with high boiling points and high volatility, such as Alkanes, is dramatically improved. • Hence, ELSD temperatures need to be as low as possible, to minimise volatility effects.
Additional Benefits of the PL-ELS 2100 Ice • Sub-ambient operation down to 10°C for maximum sensitivity to volatile compounds • Active heating/cooling provides rapid equilibration between analyses. • Improved accuracy of quantification.
Limit of Detection- PEG 106 x40 increase in S/N
PL-ELS 2100 Ice ‘Lock out’ Specs • Sub-ambient operation down to 10°C • High sensitivity to semi-volatile compounds • DMSO transparency at ambient temperature • Extremely low dispersion for high resolution separations • Compatible with eluent flow rates, up to 5.0ml/min • Rapid thermal equilibration • Easy to use • Extremely small footprint, stackable
Key Points vs Competition • ELS2100Ice is the best choice for ELS detection for volatile and semi-volatile compounds. • ELS2100Ice has the widest range of sample detection for any ELSD, therefore it is the most ‘universal’ ELS Detector • ELS2100Ice is the only ELSD with operation at sub-ambient temperatures. • ELS2100Ice sub ambient specification can be used for lock-out specs vs competitive ELSDetectors.
PL-ELS 2100/2100 Ice Specifications Light source: LED 480nm Detector: Photomultiplier tube Nebuliser temperature: ambient to 90°C in 1°C increments Evaporator temperature: PL-ELS 2100 Ice - 10 to 80°C (1°C increments) PL-ELS 2100 - ambient to 120°C (1°C increments) Gas flow rate: up to 3.25 SLM Gas pressure: typical 60-100psi, maximum 100psi Eluent flow rate: 0.2 to 5 ml/min Output: Analogue: 0-1V FSD Digital: 24bit, 10Hz using serial connection Communications: serial I/O (RS232), contact closure, TTL Power requirements: 90/120V AC or 220/250V AC 50/60 Hz Dimensions: 200x450x415mm (wxdxh) Part No. PL0860-0110 (110v), PL0860-0240 (240v) 200mm 200mm 415mm 450mm 450mm