A Universal Free-Standing Accessory to Improve ICP .ppt

1、A Universal Free-Standing Accessory to Improve ICP Productivity,Jerry Dulude, Glass Expansion, Inc., 4 Barlows Landing Rd., Pocasset, MA 02559, ,Glass Expansion ,Sample Cycle for Unattended ICP Analysis,2,4,6,Glass Expansion ,Benefits of Decreasing the Analytical Cycle,More samples/hour Faster sampl

2、e turn-around time Delay procurement of additional instruments Reduce consumables cost/sample Argon Torches Nebulizers Cones,Glass Expansion ,Methods to Reduce Analysis Cycle (without degrading performance),Minimize dead volume Software approaches Valve switching,Glass Expansion ,Removing Dead Volum

3、e,Nebulizer EzyFitSpray chamber HelixInternal Standard Low volume chamber,Glass Expansion ,Software Approaches to Speeding Analysis,Fast pump in rinse mode longer equilibration Predictive Rinse QCs complicated Risk of carryover Intelligent Rinse Rinse is based on sample results Analyzes rinse to det

4、ermine optimum time Modest productivity gain,Glass Expansion ,Niagara Rapid Rinse Accessory,Interfaces between ICP & Autosampler Reduces required rinse time Programmable delay time Less than 8 inches high Includes adj. height stand,Glass Expansion ,How Niagara Works,Analysis,Rinse,Glass Expansion ,N

5、iagara Interface no software required,Started with hardware trigger on AS Recently modified to serial interface Serial cable runs from ICP computer through the AS to the Niagara. Each Niagara is preprogrammed for a specific ICP/AS combination.,Niagara,Glass Expansion ,Niagara Time Saving Elan 6000 I

6、CP-MS, Hill Labs, New Zealand,= Rinse steps for nebulizer & spray chamber,30 second rinse,10 second rinse,Glass Expansion ,ICP-MS Carryover Comparison,Standard method without Niagara,With Niagara,Glass Expansion ,ICP-MS Carryover Comparison,Boron,Moly,Zinc,Thallium,Glass Expansion ,On-Line Productiv

7、ity Calculator ,Glass Expansion ,Payback with Niagara-Commercial Lab,Glass Expansion ,Summary,Decrease dead-volume in sample introduction system to reduce rinse time Software approaches produce marginal productivity improvements Niagara produces clear gains in productivity without jeopardizing performance.,