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- W2495685959 abstract "Publisher Summary This chapter discusses the proposed analytical methods for Silicon isotope determinations. A remarkable progress is reported in the field of silicon isotope analysis. There are four isotopes of silicon that exist in the natural environment namely 28 Si, 29 Si, 30 Si and 32 Si. The first 3 isotopes are stable isotopes and the last one is radiogenic. There are two methods presently available for silicon isotope analyses such as gas source isotope ratio mass-spectrometry (IRMS) and secondary ion microprobe mass-spectrometry (SIMS). The IRMS is a routine method and suitable for all kinds of samples. It provides excellent precision, but needs relatively large samples. SIMS is able to determine Si isotopes on a small spatial scale but its precision is low, so that it is only applicable to the study of meteorites at present. The SiF4 method is the conventional extraction method with high precision. The laser fluorination method is successfully used in the sample preparation for silicon isotope analyses of micro sample. The secondary ion probe mass spectrometry also became a powerful tool for in situ micro-field analyses of silicon isotopes, although the precision of measurement is relatively low. These methods will be improved in the future, providing better and better technique base for silicon isotopic study." @default.
- W2495685959 created "2016-08-23" @default.
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- W2495685959 date "2004-01-01" @default.
- W2495685959 modified "2023-10-14" @default.
- W2495685959 title "Analytical Methods for Silicon Isotope Determinations" @default.
- W2495685959 doi "https://doi.org/10.1016/b978-044451114-0/50027-2" @default.
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