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Agilent 7500 ICP-MS

Agilent 7500 ICP-MS. Date: 28JUL2005. What is ICP-MS?. Atomic Absorption Spectroscopy Graphite Furnace AAS. ICP-Mass Spectroscopy. Inductively Coupled Plasma - Optical Emission Spectroscopy. Atomic Spectroscopy (I). Nucleus Electron. FAAS. ICP-MS. High Precision. Quantitation.

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Agilent 7500 ICP-MS

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  1. Agilent 7500 ICP-MS Date: 28JUL2005

  2. What is ICP-MS?

  3. Atomic Absorption Spectroscopy Graphite Furnace AAS ICP-Mass Spectroscopy Inductively Coupled Plasma - Optical Emission Spectroscopy Atomic Spectroscopy (I) Nucleus Electron

  4. FAAS ICP-MS High Precision Quantitation High Sensitivity Low Detection Limits Sensitivity GFAAS ICP-OES Multi-element Simultaneous Analysis Atomic Spectroscopy (II) Spectral Interferences

  5. ICP-MS Schematic Diagram 5. Isolation Valve 8. Detector 3. Plasma 2. Spray Chamber 7. Mass Filter 4. Off-axis Lens 6. ORS 1. Nebulizer

  6. Sample Introduction Device Ar blend gas To ICP Babington Al insulation Nebulizer Sample solution cover Ar carrier gas Peltier cooling device Cooling water

  7. Mass flow Control 6. Ion Lenses 2. Spray Chamber 4. Interface Auxiliary Gas (1L/min) Carrier Gas (1.2L/min) + Sample Blend Gas (0.6L/min) Plasma Gas (15~16L/min)

  8. + Ionization by Plasma ID 2.5mm, Flow 0.2~0.4ml/min 2. Spray Chamber 1. Drying 3. Atomization 4. Ionization 2. Decomposition

  9. Distribution of Plasma 27.12MHz S Sample 40MHz 27.12MHz S 40MHz

  10. Cool Plasma Work coil Torch Shield plate

  11. Cool Plasma Normal Plasma Cool Plasma Shield plate • Forward Power: 1300W • Sampling Depth: 7mm • Carrier Gas Flow: 1.2ml/min • Forward Power: 900W • Sampling Depth: 13mm • Carrier Gas Flow: 1.7ml/min

  12. Ionization Efficiency Mg Mg, Fe, As Fe Cl As Ar Cl Ar

  13. Optimum gas flow Co Sensitivity ArH ArO Carrier gas flow

  14. Extraction Lens Twin Extraction Lenses Sampling cone Skimmer cone

  15. Why need ORS? • There are some applications where coolplasma does not meet current and future required performance levels for certain analytes: • several interfered analytes in high(100-1000ppm) Si matrices • interfered analytes (Ti, Zn) in high matrix acids H2SO4 and H3PO4 Agilent’s Octopole Reaction Cell can remove these interferences…

  16. Off-axis Lens

  17. Ar 40amu Ar Ar Cl Cl Cl 75amu 35amu Dissociation He As 75amu 75amu

  18. As 75amu Ar Cl 75amu Energy Transfer He Electric Potential (Quadrupole)

  19. Reaction mode • Charge Transfer • Ar+ + H2 H2+ + Ar • (neutral) • Proton Transfer • Ar2+ + H2 Ar2H+ + H • (80amu) (81amu)

  20. Mass Filter • True Hyperbolic Quadrupole • 3MHz RF Generator • Peak Shape • Abundance Sensitivity 3MHz

  21. Dual Electron Multiplier Fast Analogue Detection Pulse Counting Detection M+ e e Dynode

  22. Wide Dynamic Range 1000ppm • Dynamic Range: 9 orders • Analog Mode • Pulse Counting Mode • Solid type Multiplier 1ppt

  23. ICP-MS Schematic Diagram 5. Isolation Valve 8. Detector 3. Plasma 2. Spray Chamber 7. Mass Filter 4. Off-axis Lens 6. ORS 1. Nebulizer

  24. Flexibility [I-Autosampler] [HPLC-ICP-MS] [ORS Technology] [GC-ICP-MS] [Organic Kit]

  25. Sample Type • Waters • Chemicals • Semiconductor • Food • Geological • Clinical • Forensic • Petrochemical • Nuclear

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