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A UNIVERSAL PROGRAMMABLE TEMPERATURE SPRAY CHAMBER. Jerry Dulude, Glass Expansion, jdulude@geicp.com . Limitations of Room Temperature Spray Chambers. Intensity drift with temperature Excessive plasma loading (volatile solvents) Excessive oxide formation
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A UNIVERSAL PROGRAMMABLE TEMPERATURE SPRAY CHAMBER Jerry Dulude, Glass Expansion, jdulude@geicp.com
Limitations of Room Temperature Spray Chambers • Intensity drift with temperature • Excessive plasma loading (volatile solvents) • Excessive oxide formation • Insufficient control of analyte transport Glass Expansion www.geicp.com 1
Limitations of Externally Controlled Spray Chambers • Requires antifreeze solution • Requires bulky floor model chiller • Messy coolant lines from chiller to chamber • Freezing of condensate on lines • Requires intricate jacketed chamber Glass Expansion www.geicp.com 1
IsoMist™ Controlled Temperature Spray Chamber Glass Expansion www.geicp.com 1
IsoMist Encapsulated Spray Chamber Glass Expansion www.geicp.com 1
Features of IsoMist • Powerful Peltier-effect chiller reaches -5C in 15 minutes • Programmable from -10 to 60C in 1 degree increments • Maintains temperature to within 0.1 degree • Custom software runs from any PC • Compact design (7.5x4x4 inches) • 100% self-contained (no external lines) • Incorporates Bluetooth® technology for clean wireless control (USB available) Glass Expansion www.geicp.com 1
PC Screen showing IsoMist Software Glass Expansion www.geicp.com 1
Applications of the IsoMist • Analyze volatile solvents • Reduce oxide interferences • Lower detection limits • Increase stability Glass Expansion www.geicp.com 1
Determination of Trace Metals in Naphtha • Interfere with the cracking process • Poisoning of the catalysts • Environmental release concerns • Origin and migration markers Glass Expansion www.geicp.com 1
Analysis of Naphtha by ICP-OESPE Optima 2100 DV (Axial view) • Forward Power: 1500Watts • Coolant flow: 20L/min • Auxiliary flow: 1.8L/min • Nebulizer gas flow: 0.35L/min • Injector: 1mm capillary bore • Spray Chamber: Twister baffled cyclonic • Nebulizer: SeaSpray glass concentric • Uptake rate: 300ul/min • IsoMist temperature: -10C Glass Expansion www.geicp.com 1
IsoMist on Optima 2100DV Glass Expansion www.geicp.com 1
Spike Recoveries in Naphtha Glass Expansion www.geicp.com 1
Oxide Reduction in ICP-MSIsobaric oxide interferences Robert Thomas, Practical Guide to ICP-MS, Marcel Dekker, NY, 2004. Glass Expansion www.geicp.com 1
Reducing Oxides for ICP-MS Data courtesy of David Jones, ALS Chemex, Brisbane, Australia Glass Expansion www.geicp.com 1
Analysis of Limited Sample Volumes • Biological applications • Intracellular fluids • Neonatal samples • Forensic applications • Requires micro flow nebulization • Low DL’s desirable Glass Expansion www.geicp.com 1
Effect of Temperature on Normalized Intensity (20ul/min Uptake) ICP-OES PE Optima 2100DV Glass Expansion www.geicp.com 1
Effect of Temperature on DL20ul/min Uptake (ICP-OES) PE Optima 2100DV Glass Expansion www.geicp.com 1
Without IsoMist IsoMist At 21C Stability EnhancementICP-OES Glass Expansion www.geicp.com 1
PE ICP & ICP-MS Varian ICP & ICP-MS Agilent ICP-MS ThermoFisher ICP & ICP-MS Horiba J-Y ICP Teledyne Leeman ICP GBC ICP Spectro ICP Borosilicate glass Quartz Inert PFA IsoMist Compatibility Models Spray Chamber Materials Glass Expansion www.geicp.com 1