Excellent peak shapes and separation thanks to Temperature Programmed Desorption (TPD)
The vario ISOTOPE select delivers excellent peak shapes and full peak separation in simultaneous NCS analysis mode in less than nine minutes. This is achieved thanks to our patented Temperature Programmed Desorption (TPD) technology, which separates combustion gases using dynamic – not preprogrammed - heating. Because the individual target gases are only released, once the prior sample peak has reached baseline, complete peak separation is guaranteed even for extreme elemental ratios. Additionally, our TPD technology releases gases in a highly rapid and therefore focused manner, resulting in high signal-to-noise-ratios. Together with a high furnace temperature of up to 1,200 °C and jet-injection of oxygen to the point of combustion, our TPD technology provides outstanding accuracy and sensitivity. This enables the detection of very low sulfur contents even in a high carbon sample matrix (such as tree rings), making it the ideal instrument for NCS isotope analysis.