Professional technology
Double detector (FID+TCD), double column and double gas path system
Solvent purity detection, determination of water content in hydrophilic solvents
Cigarette strip, box wrapping paper, brand paper organic compound detection
Automatic sampling design is convenient for customers to use flexibly
Industrial microcomputer control
7 "touch screen LCD display test parameters
Two samples were prepared in a constant greenhouse
Two samples were tested at a time
Anti - condensation, back - blowing cleaning function, to avoid cross contamination of the sample
The chromatograph has various test modes of constant temperature, programmed temperature rise and mixed control
16 order linear control temperature rise
Over temperature, off temperature protection
Detector modular design, with expansion function
Automatic zero setting of baseline, power failure protection, parameter storage and call functions
Professional computer reverse control chromatography workstation software support, powerful processing function, optional EPC electronic flow automatic control system
Test principle
Gas chromatograph is a kind of multi-component mixture separation, analysis tool, it is inert gas as mobile phase, using chromatographic column separation technology. When a variety of analytical substances enter the chromatographic column, due to the different distribution coefficient of each component in the chromatographic column, the flow rate of each component in the chromatographic column is different. After a certain column length, the mixed components leave the chromatographic column and enter the detector, which is converted into electrical signals after detection and sent to the data processing workstation, so as to complete the detection and analysis of the measured substances.
Test application
Basic application | Solvent residue | Suitable for all kinds of food, medicine packaging plastic film, paper and plastic composite film, cigarette bag and other materials solvent residue analysis test |
Purity analysis | Suitable for all kinds of packaging printing solvent purity analysis |
Moisture analysis | It is suitable for solvent moisture content analysis in packaging and printing industry |
Automatic sampling | It can realize the automatic experiment process and reduce the human error |
Extended application | Vinyl chloride monomer analysis | Suitable for the content analysis of vinyl chloride monomer |
Technical index
Sample room A temperature | Room temperature +5℃~200℃; Temperature control accuracy: ±0.1℃ |
Sample room B temperature | Room temperature +5℃~200℃; Temperature control accuracy: ±0.1℃ |
Sample gas conveying line temperature | Room temperature +5℃~150℃; Temperature control accuracy ±0.5℃ |
Sampling switch valve box temperature | Room temperature +5℃~150℃; Temperature control accuracy ±0.5℃ |
Quantitative loop injection volume | 1.0mL (0.5mL, 2mL, 3mL can be selected according to user requirements) |
Headspace bottle specifications | 300mL (Regular) |
Sample analysis station | 2个 |
Backblow cleaning | 0~60000s |
Sampling time control | 0~60000s |
Headspace equilibrium heating time control | 0~60000s |
Sample transfer time control | 0~60000s |
Column chamber temperature | Temperature control accuracy | Better than ±0.1℃ |
Temperature gradient | Column effective area is not greater than 1% |
Temperature deviation | The deviation between the set temperature and the displayed temperature is less than 1 ° C |
Temperature deviation | The deviation between the set temperature and the actual temperature is no more than 2% |
Program temperature order | Level 5 (user requirements) |
Heating rate | 0.1～30℃/min |
Linear program temperature range |
Below 150℃ per minute at 30℃; Lower than 300℃ at 15℃ per minute; Lower than 350℃ at 10℃ per minute; |
Initial temperature and final temperature control time | 0～600 min |
Repeatability of program heating | Not more than 2% |
Cooling rate |
It takes no more than 15 min to decrease from 300℃ to 50℃ (When the temperature of gasification chamber and detector is 300℃) |
Gasification chamber | Temperature control accuracy | ±0.1℃（room temperature+15℃～200℃） |
more than 200℃为±0.2℃ |
Test room | Temperature control accuracy | ±0.1℃（room temperature+15℃～200℃） |
大于200℃为±0.2℃ |
Hydrogen flame ion detector (FID) | Detection limit | Not more than 5×10-12g/s（benzene） |
noise | Not more than 0.025 mV |
drift | Not more than 0.15 mV/h |
Thermal conductivity cell detector (TCD) | sensitivity | Not less than 3000 mV·mL/mg（benzene） |
noise | Not more than 0.035 mV |
drift | Not more than 0.5 mV/h |
Overall dimension | 595mm (L) × 495 mm (W) × 480 mm (H) |
Main engine weight | 55 kg |
Product configuration
Gas chromatograph host, hydrogen flame ion detector, thermal conductivity detector, water analysis column, capillary analysis column, chromatographic workstation
Note: Air source (high purity nitrogen, high purity hydrogen, dry, oil-free air), pure reagent for analysis (solvent added in printing or compounding process), 1mL glass syringe (with no. 5 needle), computer by user.
