1. Applications of NMR techniques
Juan Perlo, Federico Casanova, and Bernhard Blümich
Institut für Technische Chemie und Makromolekulare Chemie RWTH - Worringerweg 1, Aachen, Germany.

2. Nuclear Magnetic Resonance (NMR)
tomography
spectroscopy
CH3–CH H
H CHO
C=C

3. Single-sided NMR relaxometry water oil Quality control Well-logging
Medical diagnosis
Cultural Heritage:
- Porosimetry in frescos
- Stones conservation
- Degradation of paper

4. Single-sided NMR sensors
the minispec ProFiler
(Bruker BioSpin)
profiles
150 mm
object
25 mm
A new design*
(ITMC, Aachen University)
the NMR MOUSE
(Aix NMR)
* J. Perlo, F. Casanova, B. Blümich, Single-sided NMR sensor with microscopic depth resolution, (under patent process).

5. The setup
Spectrometer
Preamplifier
Lift
Sensor PC

6. Painting in canvas canvas paint
Oil painting on canvas from 18th century,
from Grand...Grandfather from Prof. Blümich

7. Set of reference samples
gypsum
wood
fibers
paint
Samples from Prof. Sgamellotti
gypsum
wood
fibers
paint

8. Comparison between tempera and oil
gypsum
wood
fibers
paint
oil
relaxation times
gypsum
wood
fibers
paint
tempera

9. Different layers with different colors
terra verde
azzurro oltremare
terra siena bruciata
terra rossa
ocra giana

10. Different layers with different colors
rossa
verde
rossa
verde
rossa
verde 1 2 2 1

11. Relaxation times vs colors1 2 5 3 4
Slice 25 mm
Measuring time 50 s !!!

12. Conclusions and future work
Single-sided NMR measurements have been successfully implemented.
Clear differences between tempera and oil have been detected.
A correlation of relaxation time vs color was obtained.
Lateral resolution: By repositioning the sensor and NMR tomography
We are going to measure in real painting

13. To you All !!! Acknowledgments K. Kupferschläger (Lift)
Prof. Antonio Sgamellotti (Perugia)
EU-ARTECH project €€€
To you All !!!
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