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Gas chromatograph for analysis and detection of Baijiu
Gas chromatograph for analysis and detection of Baijiu
Product details
Product Introduction:
Product Introduction:
Gas chromatograph for analysis and detection of BaijiuGC-7900 is a cost-effective analytical instrument that is controlled by a microcomputer, operated by a keyboard, and displayed with a Chinese menu on a LCD screen. It has high electronic circuit integration, good reliability, simple operation, memorization of set parameters, no need to reset every time, and is suitable for long-term operation. The combination of a large column box and a large fan with an automatic rear door cooling system has increased the cooling speed of the column box, truly achieving operation at room temperature+5 ℃. The instrument can flexibly use capillary columns, glass columns, and stainless steel columns. Can perform constant temperature and programmed heating operations.
Main performance characteristics
1. Adopting a large screen LCD Chinese display. Easy to operate and learn
2. It has functions such as self diagnosis, over temperature power-off protection, file storage, calling, and five step program temperature rise, as well as single column automatic compensation function; Can ensure the stability of the baseline during program temperature analysis;
3. The instrument is equipped with three injection ports, namely a double packed column and a capillary column, and three independent gas paths;
4. Equipped with six independent temperature control zones and an intelligent rear door opening system, the cooling speed is very fast; Each gasification chamber, detector, and amplifier adopts modular design, making installation and replacement very convenient;
5. Equipped with a separate and complete capillary analysis system, an independent capillary splitter injector (including diaphragm cleaning, splitting, and tail blowing adjustment). Optional capillary splitter/non splitter injector;
6. The instrument is equipped with five types of detectors: hydrogen flame detector, thermal conductivity detector, flame photometry detector, electron capture detector, and nitrogen phosphorus detector. Three detectors can be installed simultaneously, and users can choose according to their own analysis requirements. They can also add six way valve injection, conversion furnace device, etc; And it can achieve the series and parallel operation of detectors.
Gas chromatograph for Baijiu analysisThe reference conditions are as follows:
a)Chromatography column: Polyethylene glycol quartz capillary column, column length60m, inner diameter0.25mm, film thickness0.25um, or equivalent column;
b)Column temperature: Initial temperature40℃Maintain it1min, in order to4℃/min, ascend to130Raise the temperature to 200 ℃ at a rate of 20 ℃/min and maintain it for 5 minutes;
c)Detector temperature:250℃；
d)Injection port temperature:250℃；
e)Carrier gas flow rate:1.0ml/min；
f)Injection volume:1.0ul；
g)Split ratio:20: 1.
Performance indicators of Baijiu analysis gas chromatograph GC-7900:
1、 Temperature control index parameters:
1. Temperature control range: room temperature+5 ℃~400 ℃, increment 0.1 ℃
2. Temperature control accuracy: better than ± 0.01 ℃
Program heating: Eight step constant temperature time from 0 to 999min
Increment of 0.1 minutes, temperature increment of 0.1 ℃
Heating rate:
Maximum 40 ℃/min at 200 ℃
Maximum 20 ℃/min at 200 ℃
2、 Detector indicator parameters:
Hydrogen Flame Detector (FID):
Sensitivity Mt ≤ 3 × 10-12g/s (n-hexadecane)
Noise ≤ 5 × 10-14A linear range ≥ 106
Standard configuration of Baijiu analyzer:
1. 1 gas chromatograph (dual FID)
2. 2 capillary chromatography columns
3. 1 set of workstation
4. 1 set of nitrogen, hydrogen, and air sources
5. 1 gas purifier
6. 1 set of startup tools
Gas chromatograph for Baijiu analysisGC-7900 analysis of 36 component spectra:
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