1. Elemental Scientific | esi@icpms.com | www.icpms.com PC 3 Advantages Thermal stabilization of spray chamber improves long-term stability Reduces effect of laboratory temperature variation on signal stability Reduces solvent loading. Fast rinse-out using PFA-ST nebulizer and O-ring-free quartz cyclonic spray chamber. Reduced oxides Enhances stability with PC3-SSI Chamber: Isotope ratio measurements Other analyses requiring improved precision Additional reduction of oxides vs. standard PC3 Optional oxygen addition port for organic solvents.

2. Elemental Scientific | esi@icpms.com | www.icpms.com PC 3 Features Default settings of spray chamber temperature (+2 C/ -5 C) for aqueous or organic solvents. Custom temperature settings available upon request. Quartz cyclonic or HF resistant cyclonic spray chambers available. Direct connection to torch injector. Completely o-ring-free for organic solvents analysis. Organic solvent analysis using PFA-50 nebulizer. Aqueous sample analysis using PFA-ST nebulizer. PC3-SSI model for isotope ratio determination or other high precision analyses. Optional mounting tray for x-y-z torch adjustment. Air-cooled.

3. Elemental Scientific | esi@icpms.com | www.icpms.com ELEMENT2 with Standard Scott Spray Chamber Five Orders of Magnitude Rinse-out > 3 minutes PFA-ST Self-aspirating Nebulizer 10 ppb ~ 0.2 ppt 7 4 5 6 3 2 Log intensity (cps) Time (min) 0 2 4 6 8 10 12 14 1618 20

4. Elemental Scientific | esi@icpms.com | www.icpms.com ELEMENT2 with PC 3 Inlet System Five Orders of Magnitude Rinse-out < 30s PFA-ST Self-aspirating Nebulizer 10 ppb ~ 0.1 ppt 7 4 5 6 3 2 Log intensity (cps) Time (min) 0 2 4 6 8 10 12 14 16 18 20 10 ppb ~ 0.1 ppt 7 4 5 6 3 2 Log intensity (cps) 0 2 4 6 8 10 12 14 16 18 20

5. Elemental Scientific | esi@icpms.com | www.icpms.com PC3 Peltier Cooled Cyclonic Spray Chamber 4 Hour Stability 1 ppb Tuning Solution ThermoFinnigan ELEMENT2 ICPMS 0 2000000 4000000 6000000 8000000 10000000 12000000 14000000 16000000 18000000 20000000 0 0.240.480.720.96 1.2 1.441.681.922.16 2.4 2.642.883.123.36 3.6 3.84 Time (hour) Integrated Signal Intensity (cps) 7Li 1.8% RSD 59Co 1.5% RSD 115In 1.0% RSD 138Ba 1.2% RSD 238U 1.0% RSD

6. Elemental Scientific | esi@icpms.com | www.icpms.com PC3-SSI Peltier-cooled Stable Sample Introduction Low flow PFA-50 nebulizer Homogenizes sample aerosol Reduces interferences Reduces drift Improves isotope ratio precision

7. Elemental Scientific | esi@icpms.com | www.icpms.com Short-Term (20 min) Signal Stability Scott vs. PC3 vs. PC3-SSI Isotope Standard Inlet PC3PC3-SSI Co-591.03%0.92%0.53% In-II51.32%1.08%0.40% Ba-1380.96%0.90%0.48% U-2381.16%0.93%0.34% n=10, 1 min read, 1 min delay, LR 10% mass window

8. Elemental Scientific | esi@icpms.com | www.icpms.com PC3-SSI Short-term Precision

9. Elemental Scientific | esi@icpms.com | www.icpms.com Long-Term (14 h) Signal Stability Scott vs. PC3-SSI Isotope Standard Inlet PC3-SSI Co-59 3.63%0.95% In-II5 3.87%1.05% Ba-138 3.92%1.03% U-238 4.14%1.08% n=102, 3 min read, 5 min delay, LR 10% mass window

10. Elemental Scientific | esi@icpms.com | www.icpms.com Pb Isotope Ratio Precision 5 ms dwell time PC3-SSI Sample Inlet System withELEMENT2 ICPMS 0.000% 0.020% 0.040% 0.060% 0.080% 0.100% 0.120% 0.140% 0.160% 0.180% 0200040006000800010000 Number of Passes % RSD 204/208 207/208 206/208 10 ppb Pb

11. Elemental Scientific | esi@icpms.com | www.icpms.com Summary: PC3 and PC3-SSI with Finnigan ELEMENT Rinse-out improved by 2 minutes Scott-type chamber. Sensitivity enhancement up to 2x or more depending upon nebulizer flow rate. Reduced metal-oxide formation. SSI version for improved short-term and long-term signal stability. Convenient system for organic solvent analysis.