A Portable Device for A Portable Device for Real-time Sample Real-time Sample Flow MeasurementFlow MeasurementJerry Dulude, Glass Expansion, Inc.Jerry Dulude, Glass Expansion, Inc.
www.geicp.comwww.geicp.com
TruFlo Sample Uptake TruFlo Sample Uptake MonitorMonitor
Why Monitor UptakeWhy Monitor Uptake Clogged nebulizerClogged nebulizer Worn pump tubingWorn pump tubing Kinked sample capillaryKinked sample capillary Worn pump rollersWorn pump rollers Incorrect pressure of pump tubing clampIncorrect pressure of pump tubing clamp Faulty peri pumpFaulty peri pump
How it worksHow it worksThermal Flow MeasurementThermal Flow Measurement
Temp. Sensor B
Flow Rate is related to (TempA – TempB)
Heater
Temp. Sensor A
sample
Features of TruFloFeatures of TruFlo
Adjustable dampingAdjustable damping Settable alarm limitsSettable alarm limits Digital displayDigital display Recordable graphRecordable graph Range: 0.05 to Range: 0.05 to
5ml/min5ml/min
Setting Alarm RangesSetting Alarm Ranges
Pump rate vs flow rate & noisePump rate vs flow rate & noise
70 rpm60 rpm
50 rpm
40 rpm
30 rpm
Effect of Clamp PositionEffect of Clamp Position
¼ turn tighter at each arrow
Applications of TruFloApplications of TruFlo ICP-OESICP-OES ICP-MSICP-MS HPLC-MSHPLC-MS
Potential Applications of TruFloPotential Applications of TruFlo HPLCHPLC UV-VisUV-Vis FTIRFTIR Any technique where sample flow rate is importantAny technique where sample flow rate is important
