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Advantages of a Syringe Driven Sample Introduction Accessory for ICP Spectrometry. Jerry Dulude and Scott Bridger Glass Expansion. Assist Automated Productivity Accessory. Assist components. Niagara II Plus ™ Rapid Rinse accessory Sample syringe plus drive Built in switching valve
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Advantages of a Syringe Driven Sample Introduction Accessory for ICP Spectrometry Jerry Dulude and Scott Bridger Glass Expansion
Assist components • Niagara II Plus™ Rapid Rinse accessory • Sample syringe plus drive • Built in switching valve • Built in peristaltic pump • Optional internal standard syringe plus drive
Zinc Boron Moly Thallium ICP-MS Carryover Comparison
Niagara II Plus • Selectable sample loop • Optional internal standard lines • Positive displacement pump • Multi-stage valve • Sample does not contact pump tubing
Additional Assist Features • Precision syringe and drive for sample • Optional precision syringe and drive for internal standard
Advantages of Syringe Sample Delivery • Computer control of delivery speed • Broad selection of sample/IS ratio • High precision for scanning systems
e.g. 20x dilution with peri pump @ 0.5ml/min uptake • 0.38mm ID (orange/green) • 1.75mm ID (blue/green) • Pump speed=2rpm Very Noisy Signal
Assist Performance on a Elan9000 ICP-MS Uptake rate: 0.5ml/min Sample: .025ml/min IS: .475ml/min Dilution = 20x * Internal standards * *
Standard operation Niagara II (w/o FIA) Niagara II Plus Assist 19% 27% 43% 52% Productivity comparison* * % of cycle devoted to measuring signal