A UNIVERSAL PROGRAMMABLE TEMPERATURE SPRAY CHAMBER - PowerPoint PPT Presentation

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A UNIVERSAL PROGRAMMABLE TEMPERATURE SPRAY CHAMBER

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Messy coolant lines from chiller to chamber. Freezing of condensate on lines ... Coolant flow: 20L/min. Auxiliary flow: 1.8L/min. Nebulizer gas flow: 0.35L/min ... – PowerPoint PPT presentation

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Title: A UNIVERSAL PROGRAMMABLE TEMPERATURE SPRAY CHAMBER


1
A UNIVERSAL PROGRAMMABLE TEMPERATURE SPRAY
CHAMBER
  • Jerry Dulude, Glass Expansion, jdulude_at_geicp.com

2
Limitations of Room Temperature Spray Chambers
  • Intensity drift with temperature
  • Excessive plasma loading (volatile solvents)
  • Excessive oxide formation
  • Insufficient control of analyte transport

3
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

4
IsoMist Controlled Temperature Spray Chamber
5
IsoMist Encapsulated Spray Chamber
6
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)

7
PC Screen showing IsoMist Software
8
Applications of the IsoMist
  • Analyze volatile solvents
  • Reduce oxide interferences
  • Lower detection limits
  • Increase stability

9
Determination of Trace Metals in Naphtha
  • Interfere with the cracking process
  • Poisoning of the catalysts
  • Environmental release concerns
  • Origin and migration markers

10
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

11
IsoMist on Optima 2100DV
12
Spike Recoveries in Naphtha
13
Oxide Reduction in ICP-MSIsobaric oxide
interferences
Robert Thomas, Practical Guide to ICP-MS, Marcel
Dekker, NY, 2004.
14
Reducing Oxides for ICP-MS
Data courtesy of David Jones, ALS Chemex,
Brisbane, Australia
15
Analysis of Limited Sample Volumes
  • Biological applications
  • Intracellular fluids
  • Neonatal samples
  • Forensic applications
  • Requires micro flow nebulization
  • Low DLs desirable

16
Effect of Temperature on Normalized Intensity
(20ul/min Uptake) ICP-OES
PE Optima 2100DV
17
Effect of Temperature on DL20ul/min Uptake
(ICP-OES)
PE Optima 2100DV
18
Stability EnhancementICP-OES
19
IsoMist Compatibility
Models
  • 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

Spray Chamber Materials
  • Borosilicate glass
  • Quartz
  • Inert PFA
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