Uses and Specifications:
Chromatography enjoys a high position in today's analytical instruments. Qualitative analysis cannot be conducted with Chromatography alone, because its column has a highly efficient separation capability based on the retention time of the materials and then determine the nature of the material through contrast with that of the samples. However, mass spectrometry can conduct direct determination of the ratio of the mass to the charge ratio (m/z), which is accurate and fast. The combination of chromatography and mass spectrometry is actually using mass spectrometry as a universal detector.There are many detectors of chromatography, such as TCD, FID, ECD, FPD and NPD, etc., each detector has a limited scope of application, which is inconvenient. But as mass spectrometry is universal, it can replace all the other detectors that brings convenience to users.  Therefore, the combination of chromatography and mass spectrometry is a integration of the high-efficient separation of the chromatography and accurate identification of the mass spectrometry to unknown samples. This combination can be used wherever that chromatography is applied. Thus it plays a crucial part among all the analytic instrument.
The chromatography and mass spectrometry instrument is a product that combine the technologies of chromatography, mass spectrometry and computer.
 
Working Principle:
Vacuum chamber must be installed in the instrument to ensure the normal operation of the instrument. It adopts a double-level vacuum unit composed of a high-performance turbo-molecular pump and a fore vacuum pump. Samples are separated by capillary column and then enter into the ion source to generate positive ions with electronic power standard (EI) and then the positive ions will be sent into the quadrupole system with the help of aversion, focus and leading of the  electrode. The quadrupole system forms into a high-frequency electric field under the influence of  high-frequency voltage combined with the positive and negative voltage. And with the scanning voltage, only those consistent with quadrupole equation ions can reach the ion detector through symmetric center of quadrupole. And then it produces mass spectrometry signals after amplification by ionamplifier. Thus mass spectrometry map can be obtained, through which the composition of unknown samples can be identified. Foreign spectral libraries can be configured, such as NIST, WILEY and DRUG.
 
Applied Range:
1. wherever that a gas chromatography is needed for detection, especially where qualitative analysis is to be conducted on unknown samples
2. Dealing with emergencies such as hazardous materials spills, major environmental disasters
3. Combating with terrorism, drug interdiction and explosives analysis
Main Specifications:
1.Mass range: 1.5 ~ 1024amu (0-300,0-500,0-800,1.5-1024, or determined as users' demand
2. Detection limit: 1pg fluorinated naphthalene S / N 100:1
3.Scanning speed: fully adjustable to a maximum 10000amu/sec
4. Ion source: electron bombardment of standard EI source, independent heating system, 120 ~   
350 ℃ controllable (chemical ionization CI and related interfaces can be offered according to users' needs)
5. Detector: electron multiplier
6. Vacuum system: (standard configuration) 110L / s turbo molecular pump and rotary vane or
vacuum pump, users can choose from turbo molecular pumps 70L / S, 150L / S, 240L / s
7. Chromatography configuration: GC-4000A series, injection system can not be split by  
capillary  , automatic air system, AFC, APC automatic control mass flow meter
8. Computer system: all-English data processing system, automatic control of GC-MS working
process
9. Direct inlet DIP-P100 (optional): temperature control: room temperature ~ 500 ℃ or room  
temperature ~ 800 ℃ two.Cooling gas: nitrogen gas
10. Ambient environment: temperature: 15 ~ 30 ℃, Humidity: 40 ~ 70% (no condensation) Power
supply: single phase 220V, 3 kW, carrier gas: He (purity: 99.995% or more)
11. Dimension(mm): 915 (W) X 550 (high) X 610 (D) ; weight: 113 kg.
 
GC-MASS3100 Gas Chromatography and Mass Spectrometry Instrument:
I. Gas chromatography: GC-4000A host (1 set)
1. Capillary split / splitless injection system;
2. Special capillary;
3. Eight-stage process heating system;
4. GC / MS capillary connections and temperature control device;
5. Large-screen LCD display;
6. Automatic door, over-temperature protection device;
7. Auxiliary gas circuit unit of reserved gas chromatography detector;

II. MS system: (1 set)
1. EI electron bombard ionization source (standard);
2. Quadrupole mass analyzer (1.5-800AMU);
3. High-voltage conversion dynode and electron multiplier (0 ~ 3KV);
4. 2 L / S rotary vane front-stage vacuum pumps;
5. Turbo molecular pump (70L / S, 150 L / S, 240 L / S);
6. High and low vacuum gauges;
7. MS tuning standard sample (perfluorinated tributylamine) and the control unit;

III. Data processing system: (1 set)
Configuration: brand computer with 17-inch LCD monitor, HP 1008 laser printer, all-English Windows 98, Windows XP and Windows 2000 software systems
Auto / manual tuning;
Fault diagnosis;
Qualitative and quantitative determination;
QA report complete library search and information output  ;
Internationally recognized standard spectrum library such as NIST and Wiley can be chosen;
Oil Analysis Software Kit (optional);

IV Gas source: high purity helium (99.999% gas, bottle, valve) (1 set)


Application:
Mainly used for qualitative and quantitative analysis of unknown samples Monitoring of harmful substances in the environment
1. Military industry: monitoring of anti-chemical warfare, confined space on ships air and
pollution monitoring
2. Public security: drug monitoring, explosives detection
3. Chemical: detection of pure substances and impurities, monitoring of chemical process
4. Pesticide residues in Food
5. Food additives, such as: sorbic acid, benzoic acid, etc.
6. Carcinogens in food
7. Harmful residues in bakery products
8. Harmful residues in edible oil, wine, water and drinks
9. PVC in packaging materials
10. Methanol and vitamin-Ein cosmetics
11. Harmful residues in paint and dye
12. Health products
13. Pyrethrum type pesticides

Maintenance tools and spare parts:
Shifting spanner                                                                                                          1 set
Inner hexagon spanner                                                                                             1 set
Inlet insulator (inlet low-loss pad)                                                                            1 set
Capillary column installation tool (with connecting nut and socket)                 1 set
Gas pipeline and nut                                                                                                  1 set
Imported sealed ring (large medium and small for each)                                  1 set
Ion source cleaning kit                                                                                               1 set
Isothermal transmission lines and localization tools of capillary column        1 set
Spare filament (two pieces)                                                                                      1 set
Operation Manual (hardware manuals software manuals for each)

Note: The carrier gas and capillary column can be determined is negotiable.

 

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