APL Ople Single Tube Secondary Thermal Analyzer

1、 Introduction

TD-2typeSingle tube secondaryThermal desorption analyzer is used fordetectionairVolatile organic compounds in the sample（VOCs）， Enrichment and preparation of volatile organic compounds in air samplesofproduct，Meets the following standards for pyrolysisanalyzeRequirements for the instrument:

1. GB 50325-2020 Code for Indoor Environmental Pollution Control of Civil Building Engineering

2. GB 18883-2022 Indoor Air Quality Standards

3. HJ 583-2010 Determination of Benzene Compounds in Environmental Air Solid Adsorption/Thermal Desorption Gas Chromatography Method

4. HJ 734-2014 Determination of volatile organic compounds in fixed source exhaust gas Solid phase adsorption thermal desorption/gas chromatography-mass spectrometry method

5. HJ 644-2013 Determination of volatile organic compounds in ambient air - Adsorption tube sampling thermal desorption/gas chromatography-mass spectrometry method

6《HJ/T400-2007 Sampling and Determination Methods for Volatile Organic Compounds and Aldehydes and Ketones in Vehicles.

IIInstrument features and main functions

1. The gas circuit adopts a combination of electric six way valve and solenoid valve to automatically realize the solutionanalyzeSample injection and blowback cleaning process；

2. Adopting touch screen for convenient editing, saving, and calling methods, automatically completing sample analysis and injection；

3Before each run of the thermal analysis program, a leak detection function must be performed to ensure that the sample is not lost during analysis and to guarantee the recovery rate；

4Analysis tubeHeating and pipingThe pipeline through which the sample passes must be an inert pipeline with ultra-low adsorption, and the heating temperature of the six way valve can be independently set；

5standard configurationThe function of simulating sampling with standard samples,Calibration time and flow rate can be set through the host,It is more convenient to create working curves using a thermal desorption instrumentNo need to configure external devices；

6. Automatically implement solutions through time programminganalyzeFunctions such as blowing, adsorption, injection, and backwashing (activation);

7adoptSimple Lock locking sealing technology enables simple and reliable fixation and sealing of sampling tubes, completing the fixation and disassembly of sampling tubes in 2 seconds to achieve efficient work without the need for replacement of sealing gaskets or maintenance, ensuring airtightness while effectively preventing debris from falling off the gaskets and contaminating the sampling tubes, effectively reducing experimental costs；

8. Adopting semiconductor refrigeration, high cooling efficiency, no need for external refrigeration equipment, saving usage costs；

9The cold hydrazine focusing tube adopts a quartz tube with ultra-low adsorption, with a minimum inner diameter of less than0.9Mm (in accordance with HJ644 requirements)，Ensure better peak shape；

10. Adopting international standard adsorption tubes (length 89mm, outer diameter 6.4mm), the adsorption tubes can withstand a maximum temperature of 420 ℃ and are sealed with PTFE caps to ensure longer storage time of the samples;

11Compatible with various brands and models both domestically and internationallyGC， It can be connected in series; Not occupying the injection port, no need to remove the liquid automatic sampler; Parallel connection can also be used to facilitate the replacement of different GCs within 30 seconds.

IIIMain technical parameters of the instrument

1. Temperature control range of the pipette: room temperature 400 ℃, accuracy: 1 ℃;

2. Temperature control range of valve injection system: room temperature 220 ℃, accuracy: 1 ℃;

3. Temperature control range of sample transfer pipeline: room temperature 260 ℃, accuracy: 1 ℃;

4. Secondary analysisUsing quartz focusing tube, small adsorption, no cross contamination, minimum inner diameter＜0.9mm,Temperature range:-35℃400℃， Secondary flash evaporation heating rate:>3000℃/min

5. Desorption recovery rate:>98% (depending on the composition);

6. Backblowing cleaning flow rate: 0~100ml/min (continuously adjustable);

7. Simulated sampling flow rate: 100ml/min;

4Configuration List

1. Single tube secondary thermal analyzerhost 1Taiwan;

2American StandardTenax TA Thermal Analysis Tube 2 pieces;

3Simple Lock locked sealed injection system; 1 set;

4Gas phase injection port dedicated adapter bracket 1One;

5Standard sample simulation sampling device 1 set;