• Document: HANDHELD FTIR BEST ON-SITE CHEMISTRY ANALYSIS SOLUTION. Presented by: Dr. Yanqia Wang
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HANDHELD FTIR – BEST ON-SITE CHEMISTRY ANALYSIS SOLUTION Presented by: Dr. Yanqia Wang Outline  Background of FTIR Spectrometry and Agilent Handheld FTIR - TopScan 4300  Versatile sampling interfaces (Diamond/Ge ATR, Specular Reflection, Grazing Angle Reflection and Diffuse Reflection) to satisfy different applications.  Powerful and user-friendly software to assist easy data collection and analysis qualitatively and quantitatively.  Excellent outcome from real applications.  Potential Applications Infrared Light Heat Motion of atoms and molecules IR radiation/absorption Principles of IR Spectroscopy • Most organic molecules absorb light in the infrared region to yield IR absorption spectra • Absorption at certain frequencies or wavenumbers corresponds specifically to certain vibrations of functional groups • Absorbance of the spectral features is associated with the concentration of the certain components • Qualitative and Quantitative Characterization FTIR Spectrometer Key components of an FTIR spectrometer. Reference IR Source Laser Moving Laser Mirror Detector Fixed Mirror IR Detector Sample Cell Smaller is Better Computer Evolution FTIR Evolution Mobile FTIR (Thanks to Smaller Interferometer) 1998 – Mini 2002 – Midget 2007 – Micro 2013 Size:10 ¼” x 12” x 4 ½” Size:4 ¼” x 2 ½” x 5 ¾” Size:2 ½” x 2 ¾” x 4 ¼” Weight: 1.9 lbs Nano Weight: 10 lbs. Weight: 3.6 lbs Comparison Research vs Field FTIR Spectrometer ~4x scale Source: Multiple vs Single Laser: Gas Phase vs Solid State Beam Splitter: Interchangeable vs Fixed Alignment: Multi-adjustments vs Pin in place Detector: Multiple vs Single 8 Trading Rules Number of Adjustments versus Alignment Tolerance •Maximum Adjustments •Optimum adjustments •Optimum Performance •Stable Performance •“Research” system •“Field” system Performance Performance 0 0 Alignment Alignment Agilent portable systems are designed to have stable performance. Small changes in alignment have a minimal effect on performance. 9 Common Specifications Multiple Instruments from the same engine Frequency range – 5100 – 650 cm-1 (ZnSe) – 7000 – 350 cm-1 (KBr) Maximum Resolution – 2 cm-1 Non-hygroscopic optics – ZnSe beam splitter Power – AC or Onboard Lithium Ion Battery Operating temperature – 0⁰ to 50⁰ C Humidity – 95% non-condensing RELIABLE: “From White Coats to Work Boots” Where to find a Handheld FTIR? • Parking lots, Mine pits, Workshops, Warehouses, wild field … Anywhere and even a regular lab Agilent Confidential Moving Measurements From the Lab to the Field Analysis on Location Too big for lab / object can not be moved Faster Time to Answer Lab is too far / samples need to be sent away Deployment of Routine Analysis Program Non technical user can used field systems Increase QBD (quality by design) effort Cost savings 13 March 17, 2016 Requirements for Field and Routine Use Effective Performance • Achieve required measurement limits • Analytical performance still matters Form Factor – Compact, Rugged, Portable, Versatile • System needs to go where the sample is • Frequent travel/inexperienced users - subjects it to shock and vibration Correct Sampling Interfaces • Little or no sample prep • Versatility: Multiple uses and matrices Ease of Use and Provide Answers • Easy to understand, meaningful results 14 Handheld Opto-Chemical Instrumentation Smart Phone FTIR NIR QCL-MIR UV-Vis Light-absorption Based Raman XRF LIBS Sci-Fi do-it-all Light-interaction (e.g

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