1 / 27

Developments on the Front End of Your ICP

Developments on the Front End of Your ICP. Optimizing Performance and Reliability of ICP-AES and ICP-MS. ICP Sample Intro Advances. Advances in Concentric Glass nebulizers Low-Flow & Microflow nebulizers Advances in Cyclonic Spray Chambers New RF Coils. ICP Front-end Developments.

calvin
Download Presentation

Developments on the Front End of Your ICP

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Developments on the Front End of Your ICP Optimizing Performance and Reliability of ICP-AES and ICP-MS

  2. ICP Sample Intro Advances • Advances in Concentric Glass nebulizers • Low-Flow & Microflow nebulizers • Advances in Cyclonic Spray Chambers • New RF Coils Glass Expansion ICP Front-end Developments

  3. Concentric Glass Nebulizers • Self-aspirating via Bernoulli principle • High precision • Small mean droplet size • Small orifices • Not applicable to all samples Glass Expansion ICP Front-end Developments

  4. VitriCone™ Capillary Glass Expansion ICP Front-end Developments

  5. Rugged thick-walled conical construction Machined from heavy stock Uniform internal channel Nebulizer conformity Thin-walled capillary Drawn glass from tubing Variable internal channel Concentric Glass NebulizersInternal Capillary Comparison VitriCone Drawn Capillary Glass Expansion ICP Front-end Developments

  6. Nebulizer Specifications Glass Expansion ICP Front-end Developments

  7. Nebulizer MaintenanceEluo™ Nebulizer Cleaner • Rugged plastic construction • Large volume barrel • Nebulizer locking mechanism • Remove stubborn clogs • Maintain with daily cleaning Glass Expansion ICP Front-end Developments

  8. Low-Flow Nebulizers • Small mean droplet size • Reduced solvent in the plasma • Increased sampling efficiency • Reduced oxide formation • Increased efficiency of excitation and ionization Glass Expansion ICP Front-end Developments

  9. Applications of Low-Flow Nebulizers • Limited sample volumes • Volatile samples • Reduced oxide interferences in ICP-MS • Expensive waste disposal • ICP-MS-LC interface Glass Expansion ICP Front-end Developments

  10. Comparison of Nebulizer Efficiency %EFFICIENCY UPTAKE RATE (ML/MIN) Glass Expansion ICP Front-end Developments

  11. 0.050ml/min uptake 50% efficient .025ml/min in the plasma .025ul/min to waste 2ml/min uptake 2% efficient .040ul/min in the plasma 1.96 ml/min to waste Comparison of Nebulizer Signal Conikal MicroMist Glass Expansion ICP Front-end Developments

  12. 0.050 0.100 0.200 0.400 0.600 Glass - MicroMist™ PFA - OpalMist™ Polyimide - PolyCon™ Range of Low-Flow Nebulizers Uptake Rates (ml/min) Composition Glass Expansion ICP Front-end Developments

  13. Cyclonic Spray Chambers • Quickly removes large droplets • Less opportunity for agglomeration of small drops • Improved homogeneity of sample mist • Greater efficiency Glass Expansion ICP Front-end Developments

  14. Spray Chamber MechanismCyclonic Glass Expansion ICP Front-end Developments

  15. Twister Cyclonic Spray Chamber • Internal baffle further filters droplet size • Slightly less efficient • Smaller mean droplet size decreases noise • Baffle height precisely controlled Glass Expansion ICP Front-end Developments

  16. Decreased Dead Volume Spray Chamber Adaptor • Inert plastic material • Nebulizer port oversized • No opportunity for solution pooling Glass Expansion ICP Front-end Developments

  17. Helix O-ring Free Spray Chamber • PFA ferrule seals spray chamber • Solution contacts only PFA and glass • Available for all glass spray chambers • Even less opportunity for pooling Glass Expansion ICP Front-end Developments

  18. New RF Coils • Available in 3 surfaces • Copper (base) for economy • Silver plated for efficient RF transfer • Gold plated for corrosion resistance Glass Expansion ICP Front-end Developments

  19. Specifications of a “Good” RF Coil • Roundness • Appropriate coating • Application of the coating • Coil spacing • Proper installation and alignment Glass Expansion ICP Front-end Developments

  20. RF CoilsInstallation & Alignment Kit • Alignment “jig” • All tools required CD ROM with graphical instructions Glass Expansion ICP Front-end Developments

  21. Benefits of Using a “Good” Coil • Longer life of PA tube and FET’s • Longer life of torches • Potentially higher intensities for “hard” lines • Improved ionization for refractories Glass Expansion ICP Front-end Developments

  22. Conikal MicroMist Slurry SeaSpray Quartz VeeSpray PolyCon OpalMist Ceramic VeeSpray Tracey Twister Cinnabar Twinnabar Borosilicate glass Quartz HF Resistant Jacketed Choosing the Right Parts Nebulizers Spray Chambers Glass Expansion ICP Front-end Developments

  23. Selection Guides Simplify The process Of choosing The correct Parts for each Application Glass Expansion

  24. Nebulizer Selection for HF Glass Expansion ICP Front-end Developments

  25. Nebulizer Selection for non-HF Glass Expansion ICP Front-end Developments

  26. Spray Chamber Selection (Organics) Glass Expansion ICP Front-end Developments

  27. Spray Chamber Selection (Aqueous) Glass Expansion ICP Front-end Developments

More Related