ATOMIC SPECTROMETRY Flames Electrothermal Atomizers Plasmas - PowerPoint PPT Presentation

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ATOMIC SPECTROMETRY Flames Electrothermal Atomizers Plasmas

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  1. ATOMIC SPECTROMETRY • Flames • Electrothermal Atomizers • Plasmas

  2. Inductively Coupled Plasma

  3. ICP Torch Coolant (plasma) flow Optional auxiliary flow Sample aerosol

  4. Induction Coil

  5. RF Load Coil

  6. Plasma “Donut” RF Frequency: 5 MHz 27 MHz

  7. Sample Directed Through Donut

  8. Temperature Profile

  9. Plasma viewed through a glass darkly… Tail Plume Radial Viewing Zone Load Coil

  10. Axial View Load Coil Shear Gas

  11. Dual View

  12. Continuum Source Background Correction (continuum source passes through furnace) Background Only

  13. Sample Introduction

  14. Sample Introduction

  15. Sample Introduction

  16. Traditional Nebulizers

  17. Pneumatic Nebulizers

  18. Fritted Glass Nebulizer

  19. Hildebrand Grid Nebulizer

  20. Ultrasonic Nebulizer

  21. Water Removal from Sample Aerosol

  22. Ultrasonic Nebulizer

  23. Ultrasonic Nebulizer

  24. Spray Chambers

  25. Echelle Optics

  26. Echelle Optics

  27. Echelle Optics: 2-D CCD Camera on Focal Plane

  28. Elements Detected by ICP Emission Spectrometry

  29. ICP Emission Spectrometry

  30. ICP Emission Spectrometry Detection Limits

  31. ICP Emission Spectrometry Detection Limits

  32. ICP Emission Spectrometry Linearity