This system is suitable for measurement of traditional carbon and oxygen isotope ratio of low weight carbonate samples down to 20 μg. Besides that the carbonate clumped isotope thermometry will be the main use and research field of this dedicated system in our laboratory. The clumped isotope method is going to be used on various type of carbonates (fresh water carbonate deposits, biogenic carbonates, fossil otoliths) for the purpose of past climate parameter reconstruction (for more information: research topics).