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

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Presentation transcript:

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

TruFlo Sample Uptake Monitor

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

How it works Thermal Flow Measurement Temp. Sensor B Flow Rate is related to (Temp A – Temp B ) Heater Temp. Sensor A sample

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

Setting Alarm Ranges

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

Effect of Clamp Position ¼ turn tighter at each arrow

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