1、 Main functions:

The main purpose of using a thermogravimetric analyzer in conjunction with an infrared spectrometer is to perform online real-time analysis of gases emitted from the thermogravimetric analyzer. Under program-controlled temperature, a thermogravimetric analyzer measures the relationship between sample quality and temperature changes. The gas produced by the thermal decomposition of the sample is transmitted to an infrared spectrometer, which can detect functional groups. By analyzing the gas emitted at different temperature points, the possible composition and properties of the substance can be inferred, providing effective reference information for the analysis of sample decomposition mechanisms. For example, when analyzing an unknown mixture, determine its main components, additives, or types of pollutants. Thermogravimetric analysis-The combination of infrared analysis and thermogravimetric analysis is a comprehensive analysis method that combines various technical advantages with infrared spectroscopy analysis techniques.

IIinstrumentcharacteristic：

uThis instrument mainly measures the physical and chemical changes of substances related to heat, such as the melting point, melting heat, crystallization and crystallization heat, phase change reaction heat, thermal stability, glass transition temperature, adsorption and desorption, analysis of component content, decomposition, combination, dehydration, additives and other changes for research.

uTemperature control method: using dualPID temperature control, achieving cyclic step control of rise, fall, and constant temperature.

uDisplay mode7-inch color Chinese character large screen LCD display, real-time display of instrument status and data, two sets of temperature measuring thermocouples, one set of thermocouples displays furnace temperature in real time (regardless of whether the heating furnace is working), and the other set of thermocouples displays sample temperature, gas flow rate, and real-time data during operation.

uThe software has a horizontal axis that can select temperature or time as a ruler; The vertical axis is optional Choose absolute weight or percentage as the ruler; performableTG, DTG, DTA, DSC and other conventional data processing, equipped with a 64 bit core workstation processor.

uHeating furnace body, mechanical balance, atmosphere control system, circuit control system, fully integrated design, with the main unit built-in7-inch large color LCD display screen. Fully achieve automated collection and analysis. The body shell is heat-resistant, flame-retardant, non-conductive, corrosion-resistant, and resistant to electromagnetic interference

3、 Test case（Analyze unknown aqueous samples

Perform thermogravimetric analysis under programmed temperature control to raise the temperature of the sample at the set rate. The gas generated by the decomposition of the sample during thermogravimetric analysis is transferred to the gas cell of the infrared spectrometer, which can have a heating zero gravity effect and features automatic identification, low capacity, and high density. The infrared spectrometer continuously analyzes the gas emitted from the thermogravimetric analyzer at different temperatures, collecting data at intervals of approximatelyCollect a series of spectra every 8 seconds, and analyze these spectra to obtain relevant gas composition information.

IIIInstrument connection and parameter setting

Our company can provide a complete set of mature integrated solutions, effectively transferring heat and weight through the use of dedicated transmission pipelines -Connect the infrared instrument. Take a portion of the processed sample (e.g. 20 milligrams) and place it in a thermogravimetric analyzer connected to an infrared spectrometer. Heat it from 20 degrees Celsius to 850 degrees Celsius at a certain heating rate (20 ° C/min) under a nitrogen atmosphere. During the thermal separation process of the thermogravimetric analyzer, the gas released from the sample is transported in real-time to the Fourier transform infrared spectrometer for infrared data acquisition. The thermogravimetric infrared data includes a series of spectra collected every 8 seconds. The infrared spectra of the gas emitted from the sample are collected at a density of approximately one set every 2 degrees Celsius. Thermogravimetric infrared combination can simultaneously display the relationship between thermogravimetric and infrared curves with time, temperature, and wave number, making it easy for users to intuitively understand the changes in thermogravimetric infrared data of the sample throughout the entire temperature platform.