Elementar is fully devoted to stable isotope analysis, so we understand the demands placed on stable isotope labs to generate cutting-edge science. This is why we designed iso FLOW from the bottom-up with these demands in mind. Capable of challenging measurements such as deuterium in methane, or small carbonates right out of the box, while flexible enough to permit routine measurements even within the same task list. The iso FLOW can take any gas sample, whether it be the headspace of a reaction vial, a grab bag, or a positive pressure flow.
Derived from Elementar’s gold-standard Advanced Purge and Trap (APT) technology, UltiTrapTM (patent pending) blends the line between pre-concentration device and separation column. UltiTrapTM takes up a minimal footprint and shifts temperatures at rates up to 200 °C per minute enabling preconcentration followed by chromatographic separation in dynamic mode for trace applications. Or for routine analyses, it can simply purify a gas of interest in isothermal mode.
The iso FLOW eliminates cryogenics and refrigerants with low-power solid state cooling. Achieve sub-freezing temperatures without ever having to stop an analytical run to refill a Dewar flask, or maintain an external chiller. Minimize the cost and complications usually incurred in applications that call for freezing temperatures. Simply plug it in to see how cool it is!
Modular by design, the iso FLOW can be equipped with an autosampler and 180-position heated sample tray for sample or reaction vials. Combined with internal electronic gas flow control, dynamic headspace sample extraction is a breeze. Injection of the reaction gases needed to enable interference-free water isotope analysis is fully internal and automated. Carbonate analysis is enabled by automated phosphoric acid delivery via a direct-drive metering pump through a unique and exclusive dual-core needle, prior to headspace extraction of the evolved CO2. Choose between sample loop for standard samples, or flow-through for pre-concentration of more sensitive analytes.
Methane isotopes require in-line conversion to either CO2 or H2 gas for δ13C and δD analysis, respectively. To enable this on-line, post-chromatographic conversion, the iso FLOW can be equipped with a proprietary high-temperature furnace that features completely internal connections. The choice between sample loop for standard samples, or flow-through for more sensitive samples makes extending the dynamic range as simple as a click of a button. Driven by hardware within the iso FLOW and controlled by ionOS®, methane isotopes have never been so easy!
The iso FLOW delivers a new separation technology, UltiTrapTM (patent pending), which leverage's the proprietary Advanced Purge & Trap (APT) Technology employed in our EA-IRMS products. However, UltiTrapTM has been specially developed as a micro volume, dynamically heated GC separation column. The introduction of solid-state cooling technology enables sub-zero temperatures without cryogenics (LN2) or refrigerants (chillers). This new technology makes it possible for the system to be deployed as both a focussing device and as a gas separation device. Since concentration is done without requiring cryogenic cooling there are significant advantages realized by iso FLOW.
The system is modular and so can be configured to a broad range of application areas such as water isotopes, biological gases, carbonate analysis and greenhouse gases. Since there is a very large range of sample concentrations across these application areas, iso FLOW offers two built-in, automatic modes of sampling: fixed-volume sample loop or flow-through concentrator. This gives a choice of sampling strategies for different sample sizes and concentrations.
iso FLOW is a highly modular system that provides exceptional analytical solutions across a broad range of application areas.
With iso FLOW’s unique design, the analyst can measure carbonates in three modes: The Routine Mode is appropriate for high precision and ”standard“ sample sizes. Fast Mode works at lightening-speed for high throughput. Finally, Trace Mode takes full advantage of the properties of UltiTrapTM, preconcentrating the evolved CO2 for highest sensitivity
Since iso FLOW utilizes a unique solid state cooling, the need for cryogenics has been eliminated, so the only thing the analyst needs to worry about is loading the samples. With the optional high temperature furnace, it is also possible to measure the δD in addition to the δ13C of methane.
By exploiting the technique of headspace equilibrium, the iso FLOW is immune from interfering or contaminating species such as alcohols and dissolved organics so messy samples can be measured confidently and without complication.
Measuring stable isotope tracers in biological gases, whether enriched or at natural abundance, can help delineate the complex biochemical pathways that define life, and by extension the impact of these pathways on the surrounding environment.
Achieve the highest analytical performance with the most precise instrument available.