Arab Lab 2012 Dubai 26 -29 Apr 2012

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Arab. Lab 2012 Dubai 26. -29. Apr. 2012 FTIR and NDIR Spectroscopy Measurements on ambient air and human breath F. Jäger, O. Gluschke, R. Doll Delta Analytics OHG Fahrenheitstr. 1 28359 Bremen, Germany www. delta-analytics. de

Arab. Lab 2012 Dubai Content in brief: The company Infrared Spectroscopy Applications Results Visit us @ booth 430 26. -29. Apr. 2012

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 The Company Technology compound BITZ close to University of Bremen GERMANY Scope: high finesse instruments for measurements of isotope ratios und trace gases

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Method: Infrared Spectroscopy Attenuation of a broad band light source inside the gas sample Detects only molecules with a net change of the dipole moment (no linear molecules like O 2, N 2, He) 1. None-Dispersive-Infra-Red (NDIR) technique to measure δ 13 C, CO 2 2. Fourier-Transform-Infra-Red (FTIR) technique to measure δ 13 C, CO 2, CH 4, N 2 O, CO, . . .

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Applications 1. Environment Environmental air, to monitor climate change Respiration of plants, to study their life cycle and monitor influence of the surrounding Interaction of oceans, vegitation and soil with the atmosphere Vulcanic activity 2. Breath Analysis Examine metabolism / organ functions in the body of humans and animals

Arab. Lab 2012 Dubai Hitran spectra of CO 2 2250 cm-1 - 2400 cm-1 P-branch 13 CO 2 26. -29. Apr. 2012 12 CO 2 R-branch

Arab. Lab 2012 1. DIA Dubai 26. -29. Apr. 2012 Delta Isotope Analyser NDIR non dispersive infrared = opto acoustic technique with ABB Uras 26 analyser Temperature stabilized two fold. Inner core optical unit + outer box. Humidity filterd two fold. Nafion tube + perchlorate Easy to use software, platform independent, web application optinon Power supply by wind or solar energy Rugged design

Arab. Lab 2012 Dubai Gas Flow NDIR DIA 26. -29. Apr. 2012

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 2. DITA Delta Isotope and Trace Gas Analyser FTIR Fourier transform infrared optical technique = Bruker spectrometer 'alpha', the world's smallest FTIR Temperature stabilized two fold. Inner core optical unit + outer box. Humidity filterd two fold. Nafion tube + perchlorate Easy to use software, platform independent, web application optinon Power supply by wind or solar energy

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Results NDIR DIA Results Measurement sequence on the DIA (NDIR) instrument 3 reference gases + outside air (measurements at the Univ. Groningen) C 1 = 405 ppm, =-9. 44 C 2 = 458 ppm, =-11. 62 C 3 = 309 ppm, =-7. 84 Time [sec]

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Results NDIR DIA Allan deviation plot Delta Analytics „DIA“ Results A (k 2 m)-1 [As+1(k) - As(k) ]2 (Werle et al, 1993) k= number of measurements, s=1. . . m (subset)

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Results FTIR DITA FTIR spectrum on synthetic air Delta Analytics „DITA“ 12 CO 2 Res. 2 cm-1 15 scans (5 sec) Results 13 CO 2 CH 4 N 2 O CO

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Analysis of FTIR spectra – MALT/CLS (D. Griffith) software – mathematical treatment of theoretical and measured spectra Any calculation will have to incorporate – Multivariate analysis. SVD or PCA – Simulation of theoretical spectra (HITRAN) – Fitting of spectra to a theoretical curve – Calibrating Measured Results with Calibration Data

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Comparison of the precision of NDIR and FTIR Environmental analysers NDIR D. A. FTIR D. A. 5 m FTIR Griffith 20 m Echo. T. 24 m Mixing ratio CO 2 [μmol/mol] 0. 05 0. 15 0. 05 CH 4 [nmol/mol] - <5 0. 9 0. 2 N 2 O [nmol/mol] - <5 0. 3 < 0. 06 CO - <5 0. 3 0. 2 [nmol/mol] 0. 2 < sampling, 1 0. 1 < 0. 08 δ 13 C per mil [‰] D. A. and Griffith 2000: 2 minutes 0. 5 standard deviation Eco. Tech. : 10 minutes sampling, 1 standard deviation

Arab. Lab 2012 Breath Test 1. Take Basal Breath Sample 2. Eat Test Meal, including 13 C Substrate 3. Take further Breath Samples at defined Time intervals (i. e. 30 min, 60 min, 90, min, . . . ) 4. Do Measurements on DIBTA 5. Print Test Report Dubai 26. -29. Apr. 2012

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 DIBTA Delta Isotope Breath Test Analyser Analysis of human breath 13 δ C precision : 0. 1 ‰ Helicobacter Pylori Liver function, Pankreas function Digestion (corn starch, fructose) Gastric emptying Energy expenditure Lactose deficiency

Arab. Lab 2012 Dubai 26. -29. Apr. 2012 Thank you to the cooperation partners – – Prof. H. A. J Meijer (University of Groningen) Prof. Erik Kerstel (University of Grenoble) Prof. Willi Brand (MPI BGC in Jena) Dr. Michael Paul Thank you for your attention : -)

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