Secondary thermal analyzer

1、 Product Introduction

TP-5TDSecondary thermal analyzerIt is a single tube manual thermal analysis system that can be used in conjunction with any GC, GC-MS, and has a wide range of applications and powerful functions. It can analyze volatile and semi volatile organic compounds (VOCs and SVOCs) in air and materials through multifunctional thermal analysis, such as Chinese environmental standards HJ-583/644/734, GB 50325 2020, GB/T18883, etc. It can also be applied to food, biology, security, forensic and odor analysis,

2、 Product Features

1. Wide analysis range, capable of capturing C2-C20.

2. Advanced electronic refrigeration technology is adopted, which does not require liquid nitrogen and enables rapid and effective heating and cooling. The high-temperature cold trap capture system, pre effluent, narrower chromatographic peaks, enhance sensitivity, and achieve better analysis results.

3. In accordance with the labeling method, functions such as leak detection, water vapor management, and the ability to add internal standards have been added to ensure the reliability and accuracy of the analysis results.

4. The pre blowing system has a water vapor management function and is suitable for analyzing samples collected in complex environments with high temperature and humidity, effectively protecting the service life of the adsorption tube.

5. Directly use the electronic gas path system of GC to control the gas path of thermal analysis, so that it is not affected by temperature and pressure changes, ensuring the stability of chromatographic retention time.

6. Automatically heat up and activate after one analysis is completed.

7. After the secondary analysis is completed, it will automatically heat up and activate.

8. Multi step temperature rise enrichment

3、 Instrument parameters

1. Sample temperature control range: room temperature+5 ℃ -420 ℃, set in increments of 1 ℃;

2. Temperature control range of valve box: room temperature+5 ℃ -240 ℃, set in increments of 1 ℃;

3. Temperature control range of the pipeline: room temperature+5 ℃ -250 ℃, set in increments of 1 ℃;

4. Low temperature control range of cold trap: -35 ℃ -20 ℃, set in increments of 1 ℃;

5. Secondary analysis control range: Cold trap temperature -420 ℃, set in increments of 1 ℃;

6. Pipeline temperature control voltage: 36VDC;

7. Temperature control accuracy: ± 0.1 ℃;

8. Secondary analysis temperature accuracy: ± 1 ℃;

9. Secondary analysis heating rate: 100 ℃/s;

10. Desorption recovery rate:>98%;

11. Calibration sampling flow rate: 100m/min;

12. Instrument size: 430mm × 230mm × 370mm; (length x width x height)

GB 50325-2020 National Standard

16 component TVOC spectrum

0.05ug

0.1ug

0.4ug

0.8ug

1.2ug

2ug

GB 50325-2020 National Standard

standard curve

GB 50325-2020 National Standard

Experimental analysis conditions

Thermal analysis:

Calibration time: 5 minutes

Calibration flow rate: 100ml

Sample temperature: 300;

Pipeline temperature: 200;

Valve box temperature: 200;

Cold trap high temperature: 300;

Cold trap low temperature: -20;

Blow time: 1 minute

Enrichment time: 8 minutes;

Detachment time: 2 minutes;

Sample activation time: 20 minutes

Cold trap activation time: 5 minutes

SP-3420 chromatography:

Maintain 50 degrees for 10 minutes, 5 degrees per minute, final temperature of 250 degrees, maintain for 2 minutes;

Nitrogen flow rate: 30ml/min

Hydrogen flow rate: 30ml/min

Air flow rate: 300ml/min

Split flow rate: 12ml/min

Customer Case