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A Portable Device for Real-time Sample Flow Measurement

The TruFlo Sample Uptake Monitor from Glass Expansion, Inc. is a portable device designed for real-time measurement of sample flow rates in various analytical techniques. It detects issues like clogged nebulizers, worn tubing, or incorrect pump pressure. Key features include adjustable damping, settable alarm limits, a digital display, and a recordable graph, with a flow rate range of 0.05 to 5 ml/min. Ideal for applications such as ICP-OES, HPLC-MS, and more, TruFlo enhances performance by ensuring optimal sample flow rates.

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A Portable Device for Real-time Sample Flow Measurement

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  1. A Portable Device for Real-time Sample Flow Measurement Jerry Dulude, Glass Expansion, Inc. www.geicp.com

  2. TruFlo Sample Uptake Monitor

  3. Why Monitor Uptake • Clogged nebulizer • Worn pump tubing • Kinked sample capillary • Worn pump rollers • Incorrect pressure of pump tubing clamp • Faulty peri pump

  4. Heater Temp. Sensor A How it worksThermal Flow Measurement sample Temp. Sensor B Flow Rate is related to (TempA – TempB)

  5. Features of TruFlo • Adjustable damping • Settable alarm limits • Digital display • Recordable graph • Range: 0.05 to 5ml/min

  6. Setting Alarm Ranges

  7. Pump rate vs flow rate & noise 70 rpm 60 rpm 50 rpm 40 rpm 30 rpm

  8. Effect of Clamp Position ¼ turn tighter at each arrow

  9. Applications of TruFlo • ICP-OES • ICP-MS • HPLC-MS Potential Applications of TruFlo • HPLC • UV-Vis • FTIR • Any technique where sample flow rate is important

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