Analysis of hydrocarbon impurities in liquid oxygen by gas chromatography

Analysis of hydrocarbon impurities in liquid oxygen by gas chromatographyMain features:

1、The instrument is in ChineseLCDscreenDisplay technology, intuitive display and easy operation.

2Keyboard digit zeroing technology facilitates users in setting various operational data.

3Data power-off protection function, the parameters set by the instrument can be saved for a long time after power-off, truly realizing one click start and stop.

4. Microcomputer controlled FID detector with automatic ignition and stopwatch timing function.
5、Equipped with over temperature protection device. It is extremely difficult for the temperature to exceed the set point, and the instrument will stop heating and report the fault on the display.
6、Using a temperature control circuit with a microprocessor, the temperature accuracy of the controlled objects in each heating zone reaches0.1Degree.
7The intelligent dual rear door technology ensures good temperature control accuracy of the instrument column box temperature, which can be quickly controlledCooling down.

8. Eighth order programmed heating is suitable for the analysis of complex samples with wide boiling points.

9Unit based overall structural design, easy to install and maintain.
10、The instrument design is reasonable and flexible, capable of installing three types of detectors simultaneously, and has independent circuit systems and signal outputsEnd.
11、Flexible packed column and capillary column systemsCan connect capillary columns of different diameters.

12Equipped with gas cut-off protection and Chinese prompt function, it can protectTCD tungsten wire and chromatographic column are not damaged.

13Self diagnostic function,have0℃”Protection function. When any temperature display is consistently0℃”At this time, the heating will automatically stop to prevent the heating element from being damaged due to constant heating in the chamber.And there are Chinese prompts for the cause of the fault and alarm prompts.

14Intuitively display instrument parameters through a Chinese monitor，Through a user-friendly software interface, it is convenient for users to set parameters including temperature, range, detector, bridge current, etc; Intuitively operate the switch bridge flow, turn on and off temperature control, turn on and off the lift and various time events functions.

15The instrument computer is connected to the Internet and can be connected to the instrument through a remote computer to realize remote data collection and management. Improved the degree of freedom of the device and promoted its effective application in the laboratory.

16. The main control circuit adopts a functional microprocessor and a large capacity memory, making data storage more reliable

The integrated design of measuring, controlling, and power supply on one circuit board has improved the anti-interference and reliability of the instrument.

Analysis of hydrocarbon impurities in liquid oxygen by gas chromatographyMain technical indicators:

1. Temperature control indicators:

Column box: at room temperature5Accuracy between ℃ and 420 ℃±0.1℃(200Measurement at ℃).

Sample injector: at room temperature5Accuracy between ℃ and 420 ℃±0.1℃(200Measurement at ℃).

Detector: at room temperature5Accuracy between ℃ and 420 ℃±0.1℃(200Measurement at ℃).

Six way temperature control: suitable for installing multiple temperature control requirements such as conversion furnaces.

2. Column temperature box parameters:

Temperature control accuracy: at room temperature5Accuracy between ℃ and 420 ℃±0.1℃。

Column temperature box volume:280mm×280mm×250mm.

Program heating order: Eight orders.

Program heating rate:1℃－50℃。

Constant temperature holding time for each stage:0－300min（1minIncremental).

Automatic rear door design ensures rapid cooling.

High power, low-noise rotating fan ensures temperature uniformity.

3. Stable dual air system:

The carrier gas flow rate adopts a dual stability design of first stabilizing and then stabilizing the flow rate.

The pneumatic control valve components have high reproducibility and stability.

4. Multiple injection methods are available:

Filling column head injection.

Filling column gasification injection.

Capillary diversion/Non diversion injection: Back pressure valve control technology, linear diversion.

Six way valve gas injection.

High sensitivity detector parameters ensure the accuracy of data