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Extended Range NIR Wavelength Standard Gabor J. Kemeny, Ph.D. Kemtek Analytical, Inc. PAT Subcommittee February 25th 2002.

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Presentation on theme: "Extended Range NIR Wavelength Standard Gabor J. Kemeny, Ph.D. Kemtek Analytical, Inc. PAT Subcommittee February 25th 2002."— Presentation transcript:

1 Extended Range NIR Wavelength Standard Gabor J. Kemeny, Ph.D. Kemtek Analytical, Inc. PAT Subcommittee February 25th 2002

2 SRM 1920a Calibration Range

3 Uncalibrated NIR Wavelength Range

4 Comparison of NIST and KTA Wavelength Standards

5 Interlaboratory Collaborative Study Participants –University –National Laboratory –Private Industry Instruments –5 FT-NIR + 1 Dispersive (Reference) –Integrating sphere, DRIFTS, Fiber optics Methods –Analysis of band center algorithms –Analysis of the effect of instruments and sample optics –Effect of temperature

6 Physical Format of the Standard

7 Summary KTA 1920x could supercede the SRM 1920a Interlaboratory study established bands to +/ cm-1 Temperature dependence is very minimal in a wide temperature range KTA is looking for partners to distribute the reflectance wavelength standard and other standards


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