EAST AND WEST GC-MS 3100 Gas Chromatograph Quadrupole Mass Spectrometer

EAST AND WEST GC-MS 3100 Gas Chromatograph Quadrupole Mass Spectrometer  



Currently, chromatograph instruments are one of the most important analytical instruments. Chromatograph instruments are highly efficient in separating compounds and can identify compounds by comparing the unknown sample's retention time to known standards' retention time. However, these instruments cannot effectively qualitatively analyze unknown samples. However, the MS can directly measure the mass-to-charge ratio(m/z) of a sample for a quick and accurate qualitative analysis. By combining the chromatograph and mass spectrometer, we can use the mass spectrometer as a general detector for the chromatograph. The chromatograph itself has many detectors, such as TCD, FID, ECD, FPD, and NPD, but each detector has a certain range of detectability and applications. There is no general detector, and therefore, the GC can be inconvenient to use. But, the detector of the mass spectrometer can be used to replace all of the detectors of the chromatograph. So, the GC-MS combines the capabilities of both the GC and MS into a new analytical instrument on an entirely different level of ability. All fields and industries that currently use or can use a chromatograph can also use a GC-MS. As such, GC-MS is currently universally recognized as the highest tier of analytical instruments.

Our GC-MS 3100 integrates the GC, MS, and computer into an advanced analytical instrument. It is the first GC-MS ever to be manufactured and developed in China. Each year, a large sum of money is used to imported these instruments. In 2005, China imported around 600 units of various Gas Chromatograph—Mass Spectrometers. The average price of each unit was about 600,000 - 1,000,000 RMB. Our GC-MS 3100, which is able to compete with even the most advanced internationally sold GC-MS, is offered at a much more reasonable and affordable price.

Our spectral libraries include foreign databases, such as NIST, WILEY, DRUG and others.



1. Any situations where GC is needed, especially for qualitative analysis of unknown samples.
2. Address all types of emergenics, including detecting leaks of hazardous materials, environmental disasters, and ...
3. Anti-terrorism, drug prevention, analysis of explosive materials,...

Technical Features

1. Mass Range: 1.5 - 1024 amu (0-300, 0-500, 0-800, 1.5-1024 based on your selection)
2. Detection Limit: 1 pg OFN S/N 100:1
3. Scan Rate: Fully adjustable. Up to 3000amu/sec.
4. Ion Source: EI. Independent heating system, 120 to 350℃
5. Detector: Electron multiplier
6. Pump: (Standard configuration) 110 L/s turbomolecular vacuum pump. Optional: 70 L/s, 150 L/s, 240L/s turbomolecular pump.
7. Chromatograph: GC-4000A Series, capilliary tubes, split/splitless inlets, automatic air flow system, AFC, APC automatically controlled flow
8. Computer System: Computer data processing system with multiple languages supported which automatically controls the GC-MS process.

9. DIP-P100 Injection Port (optional): Temperature: Room temperature - 500 °C, or room temperature - 800 °C; Cooling gas: Nitrogen

10. Operating Conditions: Temperature: 15 - 30 C; Humidity: 40-70% (no condensation); Power Supply: 220 V, 3 kW; Carrier Gas: He (purity: 99.995%)

11. Dimensions (mm): 915 (width) X 550 (length) X 610 (height)

Weight: 113 kg


How It Works


For an ordinary analysis, the MS must form a vacuum in the vacuum chamber. Our instrument utilizes a high performance turbomolecular pump and a rotary vane vacuum pump to produce a high vacuum. A high vacuum is required to reduce unnecessary ion collisions and lower background noise. First, the sample is separated in the capillary tube inside the chromatograph and then are bombarded by the ion source. By using heated electrons to bombard the vaporized sample, positive ions are generated. After the positive ions are influenced by differently charged electrodes, they are sent through the quadrople mass filter. Under effects of both radio frequency voltage and direct current voltages, the quadrupole forms oscillating electric fields. Only ions of a certain mass-to-charge ratio will reach the detector for a given ratio of voltages. Once the ions reach the detector, an electrical amplifier amplifies the signal to create the mass spectrograph.By changing the ratio voltages, different ions will reach the detector and we,therefore,can identify the composition of the unknown sample.

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