thermal analyzerIt is a two-way automatic direct injection thermal analyzer. The gas circuit adopts the combination of electric six-way valve and solenoid valve, which can automatically program the desorption, injection and backwashing of the adsorption tube. The heating temperature of the adsorption tube and the heating temperature of the pipeline can be set independently, the synchronization signal can be output during injection, and the instrument can start the chromatography and the workstation at the same time.

Do you know what the operation requirements of the thermal analyzer are? Let's take a look.

1) Compatibility requirements. At present, when some workstation hardware is connected to the computer, system crash, workstation crash, system restart, mouse jump, thermal analyzer, these phenomena need to be avoided from the source during the development process.

2) Requirements for measurement range. In the field of preparative chromatography and ion chromatography, the measurement range is usually more than 1V, reaching 5V or higher. The thermal analyzer requires the hardware to be scalable, and the above requirements can be met with a little modification.

3) Requirements for sampling frequency and resolution. The development of rapid analysis equipment such as capillary electrophoresis chromatography and ultra-liquid chromatography; the demand for trace analysis is increasing; discussions about "0", "3", "7" and retention time are constantly highly reproduced on the Internet.

4) Requirements for communication interface. In order to keep up with the changes of computer host, all domestic manufacturers regard USB communication as a highlight, but USB communication itself has the defect that the signal is easy to interrupt, so it is recommended to provide serial port selection in addition to USB communication.

Generally, when volatile components are present in the following four types of sample matrices, the thermal analyzer technology can be used:

1. Volatile aroma and flavor substances in food.

2. Unwanted components in the sample matrix, such as residual solvents in commercial products.

3. A composition of thermally degradable compounds in a solid matrix, such as plasticizers, additives and monomers in a polymeric material.

4. Purposefully collecting volatile components in the sample matrix, such as collecting volatile organic pollutants in the air on a sorbent tube.