Gas chromatography principle of Baijiu analysis: Baijiu enters with carrier gas after high-temperature gasificationcolour spectrumColumn separation is achieved by utilizing the differences in distribution coefficients of the measured components in gas-liquid two-phase systems. The analysis method for the national standard has been improved by using multiple analyses. Can use one capillary tubecolour spectrumColumns in the same placecolour spectrumThe components in Baijiu were separated under the condition, so as to reduce the inspection cost and shorten the analysis time. Analytical method of Baijiu - successively outflow of separated componentscolour spectrumColumn, enter the hydrogen flame ionization detector, according tocolour spectrumQualitatively compare the retention values of each component peak on the graph with the standard sample; Quantify using the internal standard method based on peak area (or peak height).

Classic spectrogram of 30 component Baijiu analysis

Standard sample of Baijiu (single standard component)

GC-2020Type gas chromatographPerformance characteristics

1. Adopting320 x 240dot matrix5.7An inch large screen LCD Chinese display, real-time display of various temperatures and operating conditions, clear and intuitive content, truly realizing human-machine dialogue;
2Power on self-test, wide range self diagnostic function, can accurately determine the fault location and alarm;
3Six independent temperature controls (vaporization chamber and capillary vaporization chamber can be independently controlled), Five level program heating function;
4Overtemperature Protection function: If any circuit exceeds the set temperature, the instrument will automatically power off and sound an alarm;
5The vertical heating device of * makes sample vaporization more reliable, reduces the heat radiation generated in the vaporization chamber to the minimum, and ensures minimal temperature deviation inside the column box;
6Intelligent fuzzy control rear door opening system, automatically tracks temperature and dynamically adjusts The angle of the air door can achieve precise temperature control even near room temperature;
7Configure filling column head injection, glass lining injection, with diaphragm cleaning Functional capillary diversion/Non split injection device and capable of installing gas injectors;
8High precision dual stable gas path, capable of installing four types of detectors simultaneously;
9Optional electronic flow pressure display system with built-in workstation device.

Temperature control indicators
1.Temperature control range: room temperature 5℃～400℃ increment0.1℃
2.Temperature control accuracy: superior to±0.01℃

Program heating: Five step interval constant temperature time0～999min increment0.1minTemperature increment0.1℃
Heating rate:200℃The biggest one below40℃/min200℃Up to the biggest20℃/min

Main technical specifications of the detector

Hydrogen flame ionization detector（FID）

（1）Cylindrical collection electrode structure design, quartz nozzle, responsive*

（2）Detection limit:≤8×10g/s（HEXADECANE/isooctane）

（3）Baseline noise:≤2×10A

（4）Baseline drift:≤2×10A/30min

（5）Linear:≥10

Tengzhou Zhongkepu after-sales service:
According to relevant national laws and regulations, our company guarantees the repair, replacement and return of the gas chromatographic instruments for the detection of 30 components of Baijiu. The instrument and equipment are uniformly guaranteed for one year, with lifelong maintenance and upkeep. Free installation, debugging, and training of operators. Receive users and respond promptly. If necessary, promptly come to the door to solve the problem.
Service advantages:
1. Service engineers have received professional training in chemical analysis, instrument repair, and maintenance. They can maintain and repair various components to ensure that your instrument runs smoothly and can solve your problems as quickly as possible.
2. Timely - Troubleshooting experts answer your calls and provide timely solutions to problems.
3. National Service - The company provides high-quality services nationwide
4. Flexible response time - promptly on-site problem-solving after reporting repairs.