Hiden Analytical announce the introduction of the latest new feature for the CATLAB Microreactor / Mass Spectrometers - the pulse chemisorption operating mode. An integrated pulse valve allows single adsorbate gases or user definable multiple component pulses to be passed over samples. The pulse option allows the sample to be exposed to known, reproducible, quantities of gas allowing uptake measurements to be easily performed. Properties such as adsorption isotherms, metal dispersion and surface acidity can then be easily determined.
The CATLAB is also optimised for continuous flow experiments including TPD/TPR/TPO. The modular bench top system features a fast-response low thermal mass furnace with integrated air-cooling, a precision quadrupole mass spectrometer, and the Hiden QIC Series quartz inert capillary with ‘hot zone’ inlet for continuous close-coupled catalyst sampling with minimal dead volume and memory effects. The novel Catalyst Cartridge System provides simple, reproducible sample placement with minimal changeover time, the in-bed thermocouple ensuring optimal measurement of catalyst temperature and reaction exotherms.
The analysis cycle is fully pre-programmable and automated for linear ramp rate, temperature range and temperature dwell periods.
The mass spectrometer may additionally be operated as a stand-alone analyser under the powerful Hiden MASsoft software suite for full control and manipulation of mass spectrometer parameters. MASsoft enables real-time integration of auxiliary parameters with the mass spectral data, including temperature, weight and pressure, and includes precise mathematical manipulation functions for data quantification giving ease of analysis and reporting - peak integration with automatic background subtraction for full correlation of TA/TGA data with evolved gas analyses for example.