AutoTDS-III type secondary thermal desorption instrument

Instrument Introduction:

The AutoTDS-III type secondary thermal desorption instrument is a fully automatic thermal desorption instrument with electronic cold trap and secondary adsorption desorption function. It solves the problems of peak shape difference and low desorption rate in primary desorption by focusing on the secondary cold trap and rapid heating with direct resistance heating. Applicable to occupational health prevention and control CDC、 Industries such as environmental protection and automotive testing. Meets the standards of "HJ-644-2013 Determination of Volatile Organic Compounds in Environmental Air - Adsorption Tube Sampling - Thermal Desorption Gas Chromatography Mass Spectrometry", "HJ734-2014 Determination of Volatile Organic Compounds in Fixed Pollution Source Exhaust Gas - Solid Phase Adsorption Thermal Desorption/Gas Chromatography Mass Spectrometry", "HJ/T 400-2007 Sampling and Determination of Volatile Organic Compounds and Aldehyde Ketones in Vehicles", "GB/T18883-2002 Indoor Air Quality Standard", "HJ583-2010 Determination of Benzene Compounds in Environmental Air - Solid Phase Adsorption Thermal Desorption Gas Chromatography", etc.

Technical Specifications:

One desorption temperature: 50-380 ℃, control accuracy ± 1 ℃

Cold trap (electronic semiconductor refrigeration) temperature: Z low cooling temperature can reach minus 30 degrees Celsius

Secondary desorption temperature: 150-380 ℃, heating rate>2400 ℃/min

Heating temperature of pipeline: 50-200 ℃, control accuracy ± 1 ℃

Z high power:<800VA

Timing range: 1 second~99 minutes 59 seconds

Timing error:<0.1%

Blow flow rate: 10-100ml/minute

Gas path pressure resistance:>0.4MPa

Synchronous signal output: Two 1-2 second switch signals

Instrument dimensions: height x width x length 500mm x 320mm x 500mm

Weight: Approximately 32Kg

Key Features:

Strong universal performance: can be used in combination with any brand of gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS);

Easy to operate, convenient to use, fully controlled by software, high degree of automation: simply place the sample tube into the thermal desorption instrument, and all operations and controls are completed by the control software, resulting in good sample repeatability; The large touch LCD panel design in the host can track temperature and operation commands throughout the process.

Simple sample processing: The sample tube is detachable, making it easy to carry and collect samples in the field;

The cold trap adopts semiconductor refrigeration+air cooling, with a low cooling temperature of up to -30 ℃ (at room temperature of 20 ℃), meeting most low-temperature enrichment needs.

The trap is heated using direct resistance heating, with a heating rate greater than 2400 ℃/min.

All pipelines and six way valves are temperature controlled for heating, eliminating system cold spots and reducing sample loss.

Provide a synchronization interface that allows for simultaneous activation of chromatography and workstation during sample injection

The sample pipeline adopts silane inert treatment stainless steel pipes to reduce residual pollution.