A Modern Approach to Controlling ICP Spray Chamber Temperature Jerry Dulude, Glass Expansion,

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Presentation transcript:

A Modern Approach to Controlling ICP Spray Chamber Temperature Jerry Dulude, Glass Expansion,

Glass Expansion 1 Limitations of Externally Controlled Spray Chambers Requires antifreeze solution Requires bulky floor model chiller Cumbersome coolant lines from chiller to chamber Freezing of condensate on lines Requires intricate jacketed chamber

Glass Expansion 1 Limitations of other Peltier Controlled Spray Chambers Lack of programmability Insufficient cooling Require external fluid supply Limited temperature range Limited compatibility

Glass Expansion 1 IsoMist™ Programmable Temperature Spray Chamber

Glass Expansion 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 Compact design (7.5x4x4 inches) 100% self-contained (no external lines) Incorporates Bluetooth® technology for clean wireless control (USB available)

Glass Expansion 1 PC Screen showing IsoMist Software

Glass Expansion 1 Variety of Cyclonic Spray Chambers Borosilicate glass: most aqueous and organic applications Quartz: Trace boron determinations PFA: HF and ultra trace applications

Glass Expansion 1 Applications of the IsoMist Analyze volatile solvents – Low temp. Reduce oxide interferences – Low temp. Lower detection limits – High temp. Increase stability – Constant temp.

Glass Expansion 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 1 Spike Recoveries in Light Naphtha Direct (no dilution)

Glass Expansion 1 Oxide Reduction in ICP-MS Isobaric oxide interferences Element/IsotopeInterference 56 Fe 40 Ar 16 O + 51 V +35 Cl 16 O + 44 Ca +14 N 14 N 16 O + 48 Ti +32 S 16 O + 52 Cr +34 S 18 O + 64 Zn +32 S 16 O 16 O + 64 Zn +48 Ca 16 O + Robert Thomas, Practical Guide to ICP-MS, Marcel Dekker, NY, 2004.

Glass Expansion 1 Reducing Oxides for ICP-MS Data courtesy of David Jones, ALS Chemex, Brisbane, Australia

Glass Expansion 1 Analysis of Limited Sample Volumes Biological applications Intracellular fluids Neonatal samples Forensic applications Requires micro flow nebulization Low DL’s desirable

Glass Expansion 1 Effect of Temperature on Normalized LOD ( 20ul/min Uptake) PE Optima 2100DV

Glass Expansion 1 Constant temperature benefits Environmental monitoring Tighter CCV’s Fewer QC’s Higher productivity Metal assays Tighter bracketing Higher accuracy

Glass Expansion 1 IsoMist Customization 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 Models Spray Chamber Materials

Glass Expansion 1 Chassis Configurations of IsoMist

Glass Expansion 1 IsoMist on Optima 2100DV

Glass Expansion 1 IsoMist on Optima 2100DV

Glass Expansion 1 IsoMist on the Agilent 7500 ICP-MS

Glass Expansion 1 IsoMist on the Varian Vista MPX

Glass Expansion 1 IsoMist on the Varian Vista MPX

Glass Expansion 1 IsoMist on the Thermo iCAP 6500DV

Glass Expansion 1 IsoMist on the PE Elan 9000

Glass Expansion 1 IsoMist on the PE Elan 9000

Glass Expansion 1 Summary Control of Spray chamber temperature enhances the capability of your ICP. The IsoMist is easily installed. The IsoMist is easily and precisely controlled. Compatible with all major ICP-OES & ICP-MS models.