SP-3420A gas chromatograph

Features
1. Continuous monitoring instruments working condition, according to the fault information prompts the operator to maintain their own equipment.
2. Over-temperature protection ; open or shorted probe tips ; TCD hot filament protection ; FID flame tips ; FPD light leakage protection ;
3. interactive form of input parameters , there are prompts ; can store four analytical methods , the method can automatically link ;
Autosampler can be connected ;
3. A variety of injection unit Optional: stigma packed column injector ; rapid vaporization of a packed column injector ; automatic and manual gas sampling valve ; Headspace Sampler ; thermal desorption injector ;
4. A variety of detector options : TCD; FID; ECD; FPD; TSD, up to install two thermal conductivity detector or three different detectors .

5. Amplifier Time Programming: each detector amplifiers with a fifth-order time programming function can automatically change the attenuation of the output signal range and polarity.
6. External Event Time Programming: four external events with twenty -order time programming, can be completed in three autosampler valves , control valves and automatic switching blowback valve ; may signal conversion between the two detectors .
7. The user needs to be made specific gas chromatography for various purposes , multi-dimensional chromatography.

Technical Parameters
Oven : Temperature range: room temperature ~ 400 ℃; after dual door opener , dropped to 50 ℃ time is less than 5 minutes from 250 ℃; temperature program : 16-step ; heating rate of 0.1 ℃ ~ 50 ℃/ min .
Note sampler box : room temperature ~ 400 ℃
Thermal conductivity detector (TCD)
Maximum set temperature : 350 ℃
Sensitivity ≥10000mv • ml / mg built-in amplifier ;
Linear range: 105 Current range : 50 ~ 400mA
Hot wire protection : He or H2 carrier gas when there is a problem in the current closed within four minutes .

Flame ionization detector (FID)
Maximum set temperature : 400 ℃
Detection limit : ≤3.1 × 10-12g / s (n-C16); linear range : 107
Flameout Tip : always automatically detect the boot
Electron capture detector (ECD)
Maximum set temperature : 400 ℃
Detection limit : ≤1.6 × 10-14g / s (γ- 666); linear range : 104
Sources : 11mC63 Ni

Flame photometric detector (FPD)
Maximum set temperature : 400 ℃
The detection limit : [P] ≤1.1 × 10-12g / s ( methyl parathion )
               [S] ≤6 × 10-11g / s ( methyl parathion )
Linear range : [P]: 105; [S]: 103
Double Flame way : for large sample size to detect or trace into the sample
Single Flame : can improve the sensitivity of detection of sulfur
Direct output : For phosphorus or sulfur detection
Square root output : For sulfur detection
Light leakage protection : automatically cut off when high pressure leaked current ≥12μA

Thermionic detector (TSD)
Maximum set temperature : 400 ℃
Detection limit : [N] ≤2 × 10-13g / s ( azobenzene )
               [P] ≤1 × 10-13g / s ( malathion )
Linear range : [N]: 105; [P]: 104