Chromatograph for detecting volatile impurities in ethanol

Chromatograph for detecting volatile impurities in ethanolPerformance parameters:

A 320 × 240 graphic large screen is used to display both Chinese and English, with simple and intuitive parameter settings;

● Comprehensive self diagnostic function, which enables users to conveniently check the location and type of faults;

A reliable anti-interference system ensures that power fluctuations or momentary power outages will not affect the normal operation of the instrument;

Complete temperature overheating protection and platinum resistance open circuit and short circuit alarm functions to ensure that the temperature does not lose control;

● Carrier gas pressure monitoring system to achieve the function of protecting chromatographic columns, TCD, and ECD;

Adopting advanced FLASH memory system, data protection is no longer trapped by battery failure;

The highly stable and sensitive microcurrent amplification technology significantly improves the detection limit of FID;

The new thermal conductivity detector has higher sensitivity;

The instrument can be equipped with a built-in AD conversion circuit for direct digital output of chromatographic signals;

The instrument can be equipped with XS-H2000 workstation to complete all control and analysis tasks on a PC;

The instrument pneumatic system can be equipped with electronic flow display;

New pneumatic control valves ensure the repeatability of analysis parameters;

Capillary systems have split and split/non split injection modes;

● Rear door opening technology enables near room temperature operation and 9-stage programmed heating;

The instrument can be equipped with manual/automatic FID and FPD ignition devices;

Analysis conditions：

Chromatographic column: OV30+0.53+1.8

Column temperature: 40 ℃→12min→10℃/min→24℃→10min

Carrier gas: N2 30min/sec

Injector: 230 ℃ split injection

Detector: FID 280 ℃

Sample analysis: Ethanol for pharmaceutical use

Key points of operating procedures:

1. The gas chromatograph should be placed in a separate room with good ventilation, and the combustion exhaust gas should be discharged outdoors.

2. Regularly replace the injection pad at the injection port;

3. Gas chromatograph gas path bee, check whether each interface is tightly sealed;

4. Check that the pressure transmitter reading is normal and confirm that the air inlet pressure and gas inlet pressure meet the operating requirements of the gas chromatograph;

5Select the running function, the fault indicator light on the control panel will turn off, and the ready status indicator light will turn on, indicating that the air circuit and the tested gas circuit are normal;

6. Press the ignition button, and the ignition indicator light will turn on. At this time, the combustion furnace should be burning normally. The running status indicator light is on, and the exhaust temperature displayed by the controller keeps rising;