Arnaud Buch

TL;DR: Tetramethylammonium hydroxide (TMAH) is one of the most popular methylation reagents that have been increasingly used for the detection of organic compounds within a wide range of samples, such as soil, coal, lacquer, lignin, polymers and for in situ analysis of solid samples by space experiments as mentioned in this paper.

TL;DR: In this article, the results of systematic laboratory experiments of the products formed during the pyrolysis of organic compounds from three chemical families (polycyclic aromatic hydrocarbons (PAHs), amino acids and carboxylic acids) in presence of calcium perchlorates were presented.

TL;DR: In this paper, the authors build an exhaustive molecular database to support the interpretation of SAM results by identifying all the chemical species produced from Tenax® adsorbents, by determining the thermal degradation by-products of Tenax®, (2) the effect of tenax® conditioning on the formation of 10ax® byproducts, (3) the impact of MTBSTFA or a mixture of MTbSTFA and DMF on Tenax´ decomposition, and (4) the reaction between Tenax''s and calcium perchlorate.

TL;DR: Thermochemolysis of seven nucleobases-adenine, thymine, uracil, cytosine, guanine, xanthine, and hypoxanthine-in tetramethylammonium hydroxide (TMAH) was studied individually by pyrolysis gas chromatography mass spectrometry in the frame of the Mars surface exploration to constrain the analytical capabilities of the thermochemicalolysis experiments that will be performed on Mars.

TL;DR: In this paper, the potential ionizing radiation damage to these important chemicals, tested their effectiveness following gamma radiation exposure doses up to the anticipated Europa Lander rating requirement of 300 krad(Si), were sealed in glass ampules under vacuum.