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- W1575791792 abstract "Introduction: For the investigation of geological surfaces in particular for extraterrestrial exploration laserinduced breakdown spectroscopy (LIBS) has been suggested as a powerful analytical tool. With the ChemCam instrument on the Mars Science Laboratory (MSL) [1] to be launched in 2011 the LIBS technique will be applied for the first time for in-situ analysis on a planetary mission. Other missions with LIBS instruments are suggested [2, 3, 4]. To obtain the chemical composition of rock, soil and maybe frozen samples with LIBS on Mars qualitative and quantitative analytical methods have been developed and improved by a number of studies. One attempt to compensate for matrix effects and other factors that influence the plasma’s composition and properties and therefore the LIBS spectra are multivariate analysis (MVA) methods, see e.g. [5]. In this study the focus was on the question whether with LIBS and principal component analysis (PCA) perchlorates can be distinguished from chlorides with metal atoms of the same kind, here sodium and magnesium. Perchlorates and chlorides as well as the cations Mg and Na have been found in Martian soil at the Phoenix lander site [6]. Furthermore, they appear in form of frozen salt solutions [7]. These can also be investigated using the LIBS technique as shown previously [8, 9]." @default.
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- W1575791792 date "2011-03-01" @default.
- W1575791792 modified "2023-09-22" @default.
- W1575791792 title "Identifying perchlorates under Mars conditions in soil samples and in frozen solutions using LIBS" @default.
- W1575791792 hasPublicationYear "2011" @default.
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