NEWS As easy as 1, 2, 3 1. Fill with solvent 2. Insert nebulizer 3. Clean nebulizer Figure 8: Eluo Nebulizer Cleaning Tool. If you find that RSD’s are getting worse, but the spray chamber doesn’t seem to be at fault, remember to check the argon connection to your nebulizer. PVC or other polymer tubes can sometimes harden over time and lose their flexible gas-tight grip. Even a 1% loss of argon can produce changes of several percent in many ICP analytical lines. Most of the ICP-OES and ICP-MS instrument models monitor the nebulizer back-pressure. It is good practice to record or take note of the nebulizer back-pressure after your instrument has warmed up. This way you will know if the back-pressure is abnormally low or high and can check for leaks or a clogged nebulizer tip, respectively. Glass Expansion U-Series concentric nebulizers run optimally at approximately 40 psi. Summary We hope that this nebulizer update has provided you with a helpful guide to selecting the appropriate nebulizer for your application in addition to addressing all of the design improvements and new additions to our line of nebulizers. The reproducibility of analytical results in ICP analyses is of paramount importance. In an environment where a small change or inconsistency in a product or variable can result in a dramatic change in analytical results, design quality and reliability are essential. Glass Expansion has developed unique and proprietary manufacturing methods, which enable the production of components with the high mechanical strength and micron-level dimensional accuracy to satisfy the most stringent analytical requirements, each and every time. This is why Glass Expansion nebulizers are recognized worldwide for their excellent precision, cost effectiveness and reproducibility of results. Following the maintenance guidelines described in this article will allow you to protect your investment and maintain optimum nebulizer performance. If you have any questions about nebulizer selection or maintenance please contact us; we are happy to help. www.geicp.com Glass Expansion Newsletter | Issue 31 | page 5
Glass Expansion News June 2013
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