AHS-7900EType fully automaticHeadspace sampler

Instrument Introduction

AHS-7900EIt is a new product independently developed by Beijing Zhongyi Yusheng Technology Co., Ltdparagraph40 digits in totalautomaticHeadspace injectionDevice.A brand new exterior design,The cold trap adopts imported semiconductorsElectronicsRefrigeration, imported switching valve injection, electronicPressureflowdisplayOther characteristics.

Function configuration

1. Standard configuration40 bit sampler, static/dynamic optional;

2. 15 heating plates can achieve overlapping heating of multiple samples, greatly improving efficiency;

3. Combining dynamic headspace components can improve detection sensitivity;

4. Can achieve multiple injections of the same sample for analysis;

5. Power onThe system self check, fault alarm and prompt functions, temperature overload protection function, leakage protection function, etc. have improved the safety factor of instrument use;

6. The sample transmission pipeline and injection needle are made of inert materials to prevent sample residue and loss；

7. Can be saved10 detection methods,real timeDisplay work status, running time, traffic, etc.

8. In dynamic modeThe desorption temperature and heating rate can reach1800℃/min；

9. Can start synchronouslyGC、 Chromatographic data processing workstation,It can also be achieved withCounter control between GCs；

10. Sample injection systemhaveThe automatic blowback function can effectively avoid cross contamination of different samples;

11. The instrument is equipped with dedicated interfaces for various imported instruments,Can connect all models both domestically and internationallyGC、GCMS；

12. Add logs, help, stopwatchetc.Function, providing more convenience.

Application scope

The detection concentration of volatile organic compounds in the environment can reachPpb level;mainVolatile organic compounds applied in water and soilVOCs analysis,It can also be used for the analysis of volatile compounds in food.instrumentaccord withThe following standards:

1. 《HJ 679-2013 Soil and Sediments Acrolein, Acrylonitrile, AcetonitrileThe determination Headspace-Gas Chromatography Method；

2. 《HJ 741-2015 Soil and sediment Determination of volatile organic compounds Headspace/Gas Chromatography Method；

3. 《GB/T 5750.8-2006 Standard Test Method for Drinking Water Organic Matter Index》；

4. 《GA/T 842-2019 Test Method for Blood Alcohol Content;

5. 《HJ 1067-2019 Determination of Benzene Derivatives in Water Quality by Headspace/Gas Chromatography Method ";

6. 《HJ 642-2013 Determination of volatile organic compounds in soil and sediment by headspace/gas chromatography-mass spectrometry.