TDS-3430A thermal desorption instrument

1Purpose and application scope

TDS-3430AThermal desorptioninstrumentIt is specifically designed for execution“GBZ/T 300.62-2017 Determination of Toxic Substances in Workplace Air”In the middleIt has been stipulated“Thermal desorption of solvent gasoline and residual oil in workplace air-Gas chromatography method”Designed for manual injection gas chromatography analysis after desorption in the standard,TDS-3430AIn addition to the desorption furnace, the thermal desorption device is also equipped with a large injector heating constant temperature furnace，It has achieved the purpose of multi-purpose use, thus simplifying operation, improving work efficiency and analysis accuracy compared to similar desorption instruments in the past.

IIworking principle

TDS-3430AThermal desorptioninstrumentIt is a sample pretreatment device used in conjunction with a gas chromatograph. It first thermally aspirates the sample into a large injection needle, and then manually samples and injects it for gas chromatography analysis.TDS-3430AThermal desorptioninstrumentIt mainly consists of four parts: desorption activation treatment furnace, large injector heating constant temperature furnace, dual temperature controller, and manual operation.

IIIcharacteristic

1. The integrated design of desorption activation treatment furnace and large injector heating constant temperature furnace greatly improves the cost-effectiveness of this device, with one machine for multiple uses;

2. The same sample can be injected multiple times to eliminate the adverse effects caused by misoperation during injection or analysis;

3Compared with domestic thermal desorption devices of different types, the installation of desorption tubes is the simplest and achieves no dead volume operation;

4Especially suitable for novice operators who are not familiar with chromatographic analysis.

4Main technical indicators:

1. Desorption activation treatment furnace

⑴ Temperature control range: room temperature~400℃, in increments1℃Appointment;

⑵ Temperature control accuracy:<±0.5℃；

⑶ Specification of suction tubeOuter diameter of 6 (or 1/4 inch), unlimited length;

⑷Desorption recovery rate:>85% (related to components);

⑸ Sampling traffic:10mL/min～200 mL/min；

⑹ Continuous adjustable flow stability:<0.1%.

2．Large syringe heating constant temperature furnace

⑴ Temperature control range: room temperature~100℃, in increments of 1℃Appointment;

⑵ control accuracy: < ±0.5℃；

⑶ Maximum Placement Capacity100mL syringe injector.

3. Instrument specifications

⑴ Instrument power: 500W;

⑵ Instrument size: 170 × 390 × 400mm3;

⑶ Instrument weight: approximately 9kg.