1 / 28

2MS3 Moscow Moons of Planets October 10-14 2011 GAP/GC the Gas Chromatograph of GAP,

2MS3 Moscow Moons of Planets October 10-14 2011 GAP/GC the Gas Chromatograph of GAP, (Gas Analytical Package) aboard Phobos -Grunt mission for the in-situ analysis of Phobos surface. Michel Cabane LATMOS/ Univ -of-Paris. The GAP/GC team : France Russia

waneta
Download Presentation

2MS3 Moscow Moons of Planets October 10-14 2011 GAP/GC the Gas Chromatograph of GAP,

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2MS3 Moscow Moons of Planets October 10-14 2011 GAP/GC the Gas Chromatograph of GAP, (Gas Analytical Package) aboard Phobos-Grunt mission forthein-situ analysisofPhobossurface Michel Cabane LATMOS/Univ-of-Paris M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  2. The GAP/GC team : • France Russia • M. Cabane LATMOS Paris M.V. Gerasimov • D. Coscia LATMOS A.V. Kaluzhnyy • C. Szopa LATMOS Y.V. Lebedev • P. Coll LISA A.V. Stepanov • J.P. Goutail LATMOS A.V. Titov • J.J. Correia LATMOS A.G. Sapgir • Galic BTS • P. Zapf LISA • C. Montaron LATMOS and many others • C. Philippon LISA • A. Gaboriaud CNES M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  3. Other GC developed at LATMOS (previously SA) / LISA : for COSAC (ROSETTA-ESA) with MPS (Germany) SAM (MSL2011-NASA) with GSFC (USA) for MOMA (Exomars-ESA) M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  4. Gases from sample heating pushed by Helium FROM OVEN TOMS INJECTION TRAP IT CHROMATOGRAPHIC COLUMN CC THERM. COND. DETECTOR TCD GAS CHROMATOGRAPHY M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  5. GC : Classical analytical laboratory apparatus (not retained by CC coating) injection … an example (no relation with Phobos ) M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  6. INJECTION TRAPS : • In a metallic cylinder : few tens cubic millimeters of : • Carbosieve (light gases) • Tenax (‘heavy’ organic gases) • Cooled (Peltier element) down to -60°C max below ambient (trapping)Heated (Th.coax) up to 250 °C max (10secs max) (injection to CC) • COLUMNS : • 30 m metallic capillary columns (outer diameter .25mm) • Carbobond (light gases) • MXT5 (‘heavy’ organic gases) • Isothermal • Ramped from ambient up to 150 °C (Carbobond) • 250 °C (MXT5) M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  7. DETECTORS : • Thermal conductivity detectors (TCD) • Thermal conductivity of He : 10 to 20 times t.c. of other gases • • Gaz mixture (He + xx + YY) goes from CC through TCD capillaries, and flows around micro-resistors … R varies when xx show up, id° when YY. • then • He • + • gas mixture • time of elution is recorded for xx, for YY (xx, YY …. identified from calib.) Conductivity Resistance Wheatstone bridge M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  8. GAP 1 = ‘light’ gases 2 = ‘heavy’ organic gases (refer to Mikhail Gerasimov paper) M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  9. M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  10. CC2 TCD2 IT2 IT1 CC1 TCD1 IKI M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  11. GAP QM @ IKI M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  12. GAP-GC-CA FM-02 in LATMOS-Paris integration clean room, before delivery to IKI (Feb 09) M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  13. 1 = ‘light’ gases 2 = ‘heavy’ organic gases M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  14. Injection from an oven to traps IT1 (‘light’ gases) and IT2 (heavy organic gases) Mode 1 : Tank 1 + PO1 + TDLAS + IT1 + IT2 M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  15. Analysis of gases trapped in IT1 (’light’ gases) using CC1 and TCD1 Mode 2 : Tank 1 + IT1 + (CC1 + TCD1) + MS M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  16. Analysis of gases trapped in IT2 (heavy organic gases) using CC2 and TCD2 Mode 3 : Tank 1 + IT2 + (CC2 + TCD2) + MS M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  17. Mixture of Hydrocarbons trapped in IT2, analysis using CC2 and TCD2 on FM Not retained Not retained • • from TCD 2 (arbitrary units) Helium + 1000 ppm of Butane Pentane Hexane Benzene • 2nd heating of the IT Chromatographic peaks from the HCmix • 1st heating of the IT Time (Arb. Units) 100 seconds M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  18. Chromatographic peaks for the Hcmix (using CC2 and TCD2) Not retained (arb. un.) Butane C4H10 8 nano mols of each gas / IT2 Hexane C6H14 Pentane C5H12 BenzeneC6H6 Time (arb. un.) 100 seconds M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  19. M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  20. C6H14 (A) 8 nanomols of each gas 3 105 C6H6 2 105 Chromatographic peaks for the HCmix Variation of the quantity of HydroCarbons injected in IT2 105 0 100 seconds (B) 0.6 nanomol of each gas 105 - 0 M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  21. LINEARITY : Case of C6H14 and C6H6 • Injection : • 0,6 nmol • 1,2 nmol • 4 nmol • 8 nmol • Linearresponse HEXANE Amplitude of the peak (a.u.) BENZENE (a) (b) (c) (d) Injected quantity M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  22. LIMIT OF DETECTION 105 Example : C6H6 - 105 For 0.6 nmol : Signal = 13000 au Then S/N = 65 0 0 100 seconds Noise LOD : Down to 20 pmol if S/N = 2 is needed electronic Noise ≈ 200 au 102 0 0.1 second M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  23. Analysis of gases trapped in IT1 (‘light’ gases) using CC1 and TCD1 Mode 2 : Tank 1 + IT1 + (CC1 + TCD1) + MS M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  24. ‘Light’ gases trapped in IT1, analysis using CC1 and TCD1 Trapping of Xenon in IT1 on FM not retained Xe Impurity (H2O ?) I injection M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  25. ‘Light’ gases trapped in IT1, analysis using CC1 and TCD1 Trapping CH4 in IT1 on laboratory model M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  26. To conclude : The Gas Chromatograph has been tested by elements (IT, CC, TCD) integrated into GAP tested into GAP models Its capabilities are fully compatible with what we want to do on Phobos with GAP It remains to continue calibrations at IKI ( on GAP test bed) and in France, at LATMOS-LISA (CC, TCD, IT) M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  27. Thanks for your attention M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

  28. Recents results and ongoing calibrations : Mixture : Kr CO2 CH4 C2H2 C4H10 C5H12 C6H14 CH4 Kr C2H2 Sulfur compounds etc. Add H2O M. Cabane (Univ. Paris): GAP/GC the Gas Chromatograph of GAP

More Related