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A Portable Device for Real-time Sample Flow Measurement

A Portable Device for Real-time Sample Flow Measurement. Jerry Dulude, Glass Expansion, Inc. www.geicp.com. TruFlo Sample Uptake Monitor. Why Monitor Uptake. Clogged nebulizer Worn pump tubing Kinked sample capillary Worn pump rollers Incorrect pressure of pump tubing clamp

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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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