Description
| Category | Details |
|---|---|
| Technique Overview | IR spectroscopy depends on interaction of infrared radiation with vibrating dipole moments of molecules, Gives characteristic spectrum for each substance (except homonuclear diatomics and noble gases), Combines quantitative capabilities of TG with identification capabilities of FT-IR spectroscopy |
| Three Coupling Modes | External coupling via transfer line, Internal coupling via transfer line, Direct PERSEUS® coupling without transfer line |
| External Coupling | Equipped with additional detector (DLaTGS room temperature or liquid nitrogen cooled MCT), Simple computer controlled switch for either sample compartment measurements or combined TG-FT-IR analysis, Highest FT-IR system flexibility |
| Internal Coupling | Detection sensitivity follows Beer’s law, Sensitivity depends on path length of cell, concentration, and absorptivity of molecule, Longer path length allows more molecules to pass through, Lower cell volume results in higher concentration of evolved gases, Balance between path length, cell volume, and sample amount |
| PERSEUS® Coupling | Patented alliance between ALPHA II FT-IR spectrometer and NETZSCH Thermoanalyzers, Direct coupling without transfer line, Tiny and efficient design |
