Features of GC-MSMS DW-EXPEC5231

1. EI Ion source
2. Collision Cell with Axial Acceleration
3. Tandem QQQ quality analyzer
4. Pure molybdenum quadrupole Mass Spectrometers
5. Intelligent MRM
6. Excellent sensitivity

Work Environment of GC-MSMS DW-EXPEC5231

1. Work environment temperature: 18-25 ℃ 
2. Humidity in work environment: (20 ~ 60)% RH
3. Power supply: five sets of single-phase (220 ± 20) V AC, 10A, 50 Hz power supply

Applications of GC-MSMS DW-EXPEC5231

Specifications of GC-MSMS DW-EXPEC5231

Gas Chromatograph
1. Column oven
Maximum service temperature	450 ℃
Heating rate	120 ℃/min at maximum, typically 50 ℃/min; The temperature rise program in 32 steps and 33 stages and temperature decline program is supported, with the reproducibility better than 0.5%; 5min are required for cooling from 450 ℃ to 50 ℃;
Temperature control accuracy	within ± 0.1 ℃
Holds up to 3 capillary columns
2. Split/splitless injection ports
Maximum service temperature	450 ℃
Gas circuit system	The programmable electronic gas circuit control is adopted to provide various control modes such as constant pressure, constant flow, programmed boost and programmed upflow
Flow control	0-500 mL/min (N2); 0-1,000mL/min (He, H2)
Pressure control	0-100.00 psi (689.5 kpa)
Control accuracy	±0.001 psi, capable of realizing sample injection under pulse pressure.
Operation mode	split or spliteless
3. Programmable electronic gas circuit control
Modular design is adopted, which can support up to 18 channels of electronic pressure and flow control;
The flow, pressure, linear speed and split ratio of the injection port are set directly through the workstation software or touch screen
It has the function of automatic atmospheric pressure and temperature compensation.
4. Automatic sample injector
Support 16 bit or 110 bit automatic sample injector
Injection volume	0.1μL-250μL (16 bit) or 500 μL (110 bits)
Sampling accuracy	± 0.01%
Injection precision	RSD ＜ 0.5%
Mass spectrometry system
1. EI ion source	double filament, with 10-300eV ionization energy and 150 ℃-350 ℃ of heating temperature.
2. Sample injection interface	Non-cold point heat tracing technology is adopted for the MS/MS interface, and the interface temperature is 50-400 ℃, so as to ensure the efficient transmission of GC-MS/MS samples.
3. Ion optical system
90° deflection is adopted to effectively filter the unionized neutral particles, so as to reduce the background noise and avoid the pollution to the detector.
No redundant transmission pole is set in the ion transmission system, and the ions can directly enter Quadrupole to avoid ion loss during transmission.
4. Mass analysis system
Mass analyzer	Triple quadrupole mass analyzer.
Quadrupole	Gold-plated quadrupole made of high precision pure Mo material is used, and the material can realize the best stability through deactivation; Cleanable pre- and post- quadrupoles are set to eliminate the organic deposits; and the best mass axis stability can be ensured without heating.
Collision cell	Hexapole axial acceleration design is adopted, capable of effectively eliminating the interference of ion pair and ensuring the high-throughput analysis capability. High-purity nitrogen is adopted as the collision gas (with the purity ≥ 99.999%).
Resolution	0.4-3.0amu, adjustable.
Mass stability	< ± 0.1amu/24 hours.
Scanning speed	up to 20,000 amu/s.
Number of MRM channels	100 channels/s
Mass range m/z	EI, 5 -1,100amu;
Sensitivity	EI, MRM mode: 100fg/uL OFN of 1uL, ≥ 15000:1
Full scan, selected ion monitoring (SIM), product ion scan, precursor ion scan, neutral loss scan, multiple reaction monitoring (MRM), etc.
5. Detector
90°off-axis electron multiplier technology, without any positive and negative ion discrimination effect, which has long service life, capable of ensuring the long-term data stability.
Pulse-counting detector, to ensure the data reproducibility of low limit of detection.
6. Vacuum system	Mechanical pump and dual inlet turbomolecular pump at 250 + 450L/s. A differential pumping system is formed between the ion transmission area and mass analysis area, functioning for automatic power-off protection.
7. Workstation software
Basic features of software system	Windows 10 operating system. The software can control the gas chromatograph, liquid chromatograph and mass spectrometer, with built-in data processing and report editing functions. Besides, the software can realize the function configuration and condition optimization of the instrument automatically, the atomatic quantification, the mass spectrometry data analysis, and the establishment and retrieval of spectral database.
The system has the functions of automatic correction and instrument condition monitoring.
The GC-MS/MS operation software can be installed on the personal computer, and used for the offline processing of sample analysis data and report generation. (When bidding, the customer’s on-site installation diagram of gas-liquid-triple quadrupole mass spectrometer should be provided, with the product model indicated, which should be searched on the official website of the headquarters)

Accessory system

1. Computer system: Brand computer with mainstream configuration, 4GB memory, 1TB hard disk.
2. AC stabilized power supply: 15KVA, input voltage of 140v-300v, output voltage of 220 V ± 1%.
3. Laser printer: 6018L, black and white laser printer.
4. Mechanical pump: Pumping speed: 65m3/h, 220V power supply, 800W.