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E-mail
hengqin17@126.com
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Phone
13361860330 / 15021277021
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Address
Room 302, No. 28, Sitangba Village, Baoshan District, Shanghai
Product Categories
Shanghai Hengqin Instrument Equipment Co., Ltd
GC122 gas chromatograph
NegotiableUpdate on 01/29
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Overview
The instrument pneumatic system adopts high-precision calibrated flow stabilizing valves, pressure stabilizing valves, and needle valves. Flow regulation is convenient and intuitive, with good reproducibility and stability.
Product Details
Key Features:
◆ Newly designed high-performanceHRGC.
The instrument (base type) is equipped with dualFIDDetector, optionalGC122-TCD thermal conductivity detector,GC122-ECDElectronic capture detector,GC122-NPDNitrogen and phosphorus detector,GC122-FPDFlame photometric detector, converter, gas injection valve and other accessories.
The instrument (base type) has a dual packed column, dual injector, and dual gas path system structure, which can effectively suppress baseline fluctuations and drift in real time and is suitable for temperature programmed analysis; The instrument can install three types of detectors simultaneously, with different combinations of detectors used for different applications, and can achieve series and parallel operation of detectors.
The instrument (base type) is equipped with a complete capillary analysis system and an independent capillary flow splitter (including diaphragm cleaning, flow splitting, and tail blowing adjustment). Optional capillary splitter/non splitter injector, cold column inlet injector0.53mmLarge caliber capillary direct sampler. Suitable for capillary columns of different diameters, specifications, and lengths, such as glass and flexible quartz glass.
The instrument pneumatic system adopts high-precision scale type steady flow valves, steady pressure valves, and needle valves. Flow regulation is convenient and intuitive, with good reproducibility and stability.
The instrument can achieve the following multiple injection methods:;
Fill column: Sample injection into the column, instantaneous vaporization injection, gas injection.
Capillary column: Split flow injection, non split flow injection, direct injection of large-diameter capillary column.
A newly developed microcomputer temperature control system. Capable of achieving high precision (better than ±) for six heating zones including column box, ionization chamber, thermal conductivity cell detector, capillary injector, packed column injector, and auxiliary (backup) simultaneously0.1℃）Wide range (up to)400℃）Temperature control, temperature overshoot and deviation less than2℃Or lower.
The column box can achieve five stage programmed temperature control, with a high heating rate of up to40℃/min.
The system has functions such as power-off protection, temperature limit setting, temperature scanning, rapid automatic cooling, and rear door opening.
An open microcomputer temperature control system is optionalRS232Communication board andFJ-2000Chromatography workstation, realizing bidirectional communication control and data processing between chromatography workstation and instrument.
◆ Full mirror stainless steel large capacity column box（350mm×280mm×300mm）Can install capillary columns simultaneously.
◆ Double filled column; The internal heating wire structure is more conducive to quartz capillary column analysis.
Basic technical indicators:
◆ Temperature control:
Temperature control range: above room temperature7℃～400℃(Incremental)1℃）
Temperature controlled objects: column box, ionization chamber, thermal conductivity cell, samplerASample injectorBAuxiliary (backup)
Number of ascending orders: Five orders
Cheng Sheng rate:0.1℃～40℃/min(Incremental)0.1℃）
◆ Flame ionization detector（FID）：
Sensitivity:DFID≤1×10-11g/s(Sample:C16）
Good test results:DFID≤5×10-12g/s
Baseline noise: ≤5×10-14A
Baseline drift: ≤6×10-13A/h
Linear range: ≥106
GC122Optional detector:
| model | Detector Name | technical indicators | characteristics |
| GC122-TCD | thermal conductivity detector | sensitivityS≥2500mv.ml/mg(Carrier gas)H2Sample:C16）； Baseline noise: ≤20μVLinear range: ≥104 | Using rhenium tungsten wire, constant current power supply, differential amplifier circuit, miniature cell volume |
| GC122-ECD | Electronic Capture detector | Detection limit:DECD≤2×10-13g/s(Sample:C16 δ-666）；Baseline noise: ≤10μALinear range: ≥103 | Using nickel-63Radiation source, working temperature can reach350℃Has a particularly high sensitivity to halogen compounds. |
| GC122-NPD | Nitrogen and phosphorus detector | Detection limit: For nitrogen:DNPD≤5×10-11g/ｓRegarding phosphorus:DNPD≤5×10-12g/sBaseline noise: ≤4×10-13ALinear range: ≥103 | Using imported high stability rubidium beads, suitable for residual analysis of nitrogen and phosphorus compounds |
| GC122-FPD | Flame luminosity detector | Detection limit: For phosphorus:Dt≤2×10-11g/sRegarding sulfur:DFPD≤1×10-10g/sBaseline noise: ≤10μ VLinear range: For phosphorus: ≥103For sulfur: ≥102 | The dual flame structure uses optical fibers as the optical signal transmission line, greatly reducing the impact of detector high temperature on electrical components, and is suitable for the analysis of trace phosphorus and sulfur. |
