GCM-1522 Gas chromatography-mass spectrometry platform

1.Working condition

Operating environmental temperature: 18-35℃

Operating environmental humidity: ≤80%

Operating voltage: 220 V (±10%), 50Hz (±2%)

2.Single quadrupole mass spectrometer parameters

High-precision all-metal quadrupole equipped with pre-quadrupole;

Pre-quadrupole disassembly for cleaning to avoid contamination of the main quadrupole;

No temperature control is required to ensure quality stability indicators;

Optimizing ion energy technology;

Main performance indicators

Sensitivity: 1 pg, OFN S/N≥1500:1

Quality range: 1.5-1250 amu

Quality stability: ± 0.10 amu/48 hours

Quality accuracy: ± 0.10 amu

Maximum scanning speed: 20000 amu/s, with adjustable speed throughout the entire process

Resolution: 0.4-4amu adjustable

Dynamic range: 10⁷

Peak area reproducibility: < 2% RSD

Scanning methods: full scan, selective ion monitoring, full scan and selective ion synchronous monitoring, alternating scanning.

3.Ion source

An inert ceramic ion source ensures that analytical substances will not adsorb on the ion source during long-term use, extending service life ;

Dual filament design, alternating use to extend filament replacement time;

Visual judgment of filament working status through the filament observation port;

Type of ion source: Electron impact source (EI)

Ion source configuration: Inert ceramic ion source, dual filament software switching

Filament current: 0-500 μA

Ionization energy: 5-100 eV

Ion source temperature: 50℃-350℃

Equipped with a filament observation window to visually judge the working status of the filament

Interface temperature: 50-350℃

4.Quality analyzer

Quality analyzer: equipped with high-precision all metal quadrupole with pre quadrupole

The quadrupole is optimized for temperature control, which can ensure quality stability indicators without the need for temperature control

Pre quadrupole detachable and washable to avoid contamination of the main quadrupole

The quadrupole has optimized ion energy technology, which optimizes the speed of ions passing through the quadrupole and improves signal quality

5.Detector

Long lifespan level 13 dispersed dynode electronic multiplier

Equipped with a 10kV conversion dynode and a lens system for removing neutral noise

6.Vacuum system

Front stage pump, speed≥4 m³/h

Configure a high-performance turbomolecular pump，speed≥250 L/s

Maximum allowable chromatographic column flow rate: 5 ml/min (He)

Configured with a hot cathode ionization vacuum gauge, and the software can directly read high vacuum readings.

7.Split/non split injector

Maximum using temperature:450˚C

Gas control mode: constant pressure, constant flow rate, program up/down pressure, program up/down flow, pulse injection

Program boosting/current raising:10th order

Pressure setting range:0-1035 kPa (0-150 psi)

Maximum split ratio:9999.9:1

Flow setting range: 0-200 mL/min (N₂)

Flow setting range: 0-1000 mL/min (H₂)

8.Column oven

Operating temperature range: room temperature: +4˚C to 450˚C

Temperature Setting Accuracy:0.1˚C

Temperature control accuracy:0.01˚C

Temperature Stability: ≤0.5%

Temperature uniformity: ≤2.5%

Environmental sensitivity: When the ambient temperature changes by 1˚C, better than 0.01℃

Heating Rate::≥100˚C /min

Programmed Heating Repeatability: ≤1%

Programmed Heating Order: 32

Cooling Time (from 450℃to 50℃): ≤4 min

Maximum Running Time: 9999.999 min

• Wide temperature RF power supply can better adapt to various laboratory environments, and instrument performance is more stable；
• High precision all metal quadrupole, ensuring good resolution；
• Quadrupole mass analyzer with pre quadrupole, quadrupole has stronger anti-pollution ability；
• Electronic multiplier with high-energy conversion dynode, ensuring excellent sensitivity；
• Adopting high-performance turbo molecular pump, with high pumping speed and stable operation, ensuring long-term high vacuum environment for mass spectrometry；
• High temperature inert ion source has high ionization efficiency, reduces pollution, and is equipped with dual filaments, providing twice the usage time；
• Configured with automatic sampler, blow trap, thermal analyzer, headspace sampler to achieve sample analysis of different states；