DK-6900 Automatic Headspace Sampler

DK-6900 automatic headspace sampler
 Introduction: 

DK-6900 automatic headspace sampler has integrated design , compact structure, easy operation and so on . The instrument uses a self-developed new electric six-way valve , with the loop using a positive pressure sampling loop injection .
The biggest advantage : high sensitivity, good reproducibility analysis .

Features
1. Using the latest development of electric automatic six-way valve + loop with positive pressure sampling , high sensitivity , quantitative precision ;
2. The sample is heated circumferentially uniformly distributed bits , so that the temperature gradient between different bottles of smaller , improve the stability of the analysis result ;
3. The injection valve , pipe loop and sample transfer line can control the temperature , to avoid condensation in the transmission of the sample ;
4. sampling lines and injection valve with a cleaning function to prevent cross-contamination ;
5. With nine kinds of methods for editing , storing and call at any time to achieve a quick start and analysis

6. Synchronous start GC, chromatography data processing workstation , the program can also be used to start the unit external events ;
7. vial , injection systems and sampling ( injection ) delivery tube , three -way all the heating temperature control ;
8. A single-chip microcomputer control , LCD temperature parameters , membrane keyboard input ;
9. overtemperature off temperature shutdown protection , the use of safety ;
10. The injection needle can be replaced freely and conveniently connect various types of domestic gas chromatograph ;

Technical parameters
1. vial heating range : room temperature ~ 200 ℃, in increments of 1 ℃ in any setting ;
2. Injectors and loop heating range: room temperature ~ 200 ℃, in increments of 1 ℃ in any setting ;
3. The sample transfer line heating range : room temperature ~ 200 ℃, any incremental set 1 ℃ ;
4. Temperature control accuracy : <± 0.5 ℃;
5. Temperature Control Gradient : <± 0.5 ℃;
6. Quantitative injection valve cylinder volume : 1mL ( optional 0.5mL, 3mL);

7. vial size : 20 mL ( optional 10 mL);
8. heating bottles station : 9
9. Sampling Results RSD≤1.5% (40PPM aqueous ethanol , N = 5)
10. Cleaning blowback flow : 0 ~ 50ml / min ( adjustable ) ;
11. Synchronous start chromatographic data processing workstation , GC or external event synchronization start the unit.

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