Product Description, Technical Parameters, and Configuration

ITOFMS-2G is a high-performance mass spectrometer meticulously crafted by Xiamen Mass Spectrometry Company, a subsidiary of Youli Instruments. It is also a commercial small-scale electronic bombardment ion source time-of-flight mass spectrometer with completely independent intellectual property rights. It has excellent functions of high resolution, high sensitivity, and high acquisition speed, achieving seamless integration with full two-dimensional gas chromatography and rapid gas chromatography. The birth of iTOFMS-2G sounded the horn for domestic mass spectrometry to move towards general-purpose high-end mass spectrometers.
Comprehensive Two dimensional Gas Chromatography Time of Flight Mass Spectroscopy (GCxGC TOFMS) is a rapidly developing chromatography-mass spectrometry technology internationally in the past decade, and is a new trend in the development of chromatography-mass spectrometry technology. Compared with conventional GC-MS, it has significant advantages such as high throughput, high separation and high sensitivity. It is a * * good solution for the analysis of all components and trace components in complex systems, and has gradually become a necessary analytical instrument in the fields of petrochemical industry, essence and fragrance, tobacco and alcohol industry, food safety, environmental monitoring and identification of traditional Chinese medicine.

Performance advantages

Electron bombardment ion source: an electron bombardment source with high ionization efficiency and extraction efficiency, coupled with an optimized vertical introduction time-of-flight analyzer, has achieved full scan sensitivity that reaches the sensitivity of quadrupole mass spectrometry selective ion scanning (S/N>500:1 for 1pg OFN, S/N>50:1 for 0.1pg OFN), fully meeting the requirements of trace analysis
Quality analyzer: A time-of-flight analyzer designed with ion orthogonal introduction and two-stage reflector, which greatly reduces the initial energy dispersion of ions. It not only ensures higher resolution and wider mass range (1-1200 amu) than quadrupole gas chromatography-mass spectrometry, but also has high quality accuracy and long-term stability of less than 0.01 amu, thus achieving accurate window extraction of characteristic ions and greatly improving the signal-to-noise ratio of spectra
Signal acquisition and recording system: using ultra high speed analog-to-digital conversion recorder (1GHz/2GHz SPS) with hardware accumulation function. Therefore, while obtaining a wider linear range, it can better record mass spectrometry peaks and improve the accuracy of quantitative analysis
Vacuum system: Designed with dual turbo molecular pumps and dual full range composite digital vacuum gauges, it can monitor vacuum in real-time; The molecular pump in the ion source region has a pumping speed of up to 350L/s, which not only meets the requirements of high flow rate, but also greatly reduces sample contamination and background interference
Electrical control system: a comprehensive and reliable vacuum monitoring and electrical protection system
Modulator: Zoex's newly designed ZX-2 ring modulator from the United States; Nitrogen free electric refrigeration system can be used to reduce the cost of instrument use to * * *
Image Batch Processing Template: Automatic Baseline Correction, Automatic Peak Search, Complex Peak Resolution Function (Deconsolution), Calculation of Peak Area and Height, Quantification, Sample Comparison, Report Generation, Data Output
CLIC： Can quickly filter and analyze GCXGCXMS data, with functions similar to Excel spreadsheets
Deconvolution: Separate analytes from co current interferences
Structured parsing function: Distinguish the analyte according to its type series and quantify it according to its species. Can be edited without the need for computer language and define structured analysis programs on your own
Colorful design: Achieve optimal qualitative analysis results (with over 60 built-in colors, displaying subtle differences in some components of the chromatogram accurately and intuitively)
Multi modal visualization effect: The obtained results can display 3D stereoscopic images from different angles, 2D planar overhead views, and traditional one-dimensional images
Provide NIST spectrum retrieval: with reverse retrieval function and compatibility with third-party databases

Software advantages

The modular development towards object-oriented programming is not only feature rich and powerful, but also has a simple, intuitive, and efficient interface,
The automatic tuning function of genetic algorithm can quickly achieve the best working state of the instrument,
Equipped with automatic solvent protection and component overload protection, it maximizes the protection of the filament and detector,
The innovative TIC graph automatic baseline correction function (SBC) and background removal technology make analysis more accurate,
**The new version of NIST retrieval spectrum library has an 11% increase in the number of standard spectra compared to version 08, and has the ability to create its own spectra,
The RSD and linearity automatic calculation function of multispectral graphs enables users to quickly understand the repeatability and stability status of the instrument,
Diversified quantitative analysis methods can achieve area normalization with correction factors, internal standard method and external standard method, and complete accurate quantitative calculation of samples.

technical parameter

Quality range: 1~1200amu
Ion source: electron bombardment ion source, dual filament design (with automatic solvent protection function and software automatic switching)** Large electron emission current of 300uA, emission energy of 0-200eV; Ion source * * high temperature 300 ℃, transmission line * * high temperature 400 ℃
Quality resolution: 2000~3000 (M/z=502Th)
Detection sensitivity: 1pg/μ I OFN, S/N>500(RMS)； 0.1pg/μI OFN, S/N>50(RMS)
Acquisition speed: 200spectrum/s (repulsion pulse frequency 15kHz)
Acquisition card: ADC (1GHz/2GHz SPS, with hardware accumulation)
Quality axis stability: less than 0.01 amu (within one week)
Linear range: 104
Vacuum system: twin turbo molecular pump 350L/s+70L/s), front stage rotary vane mechanical pump (standard, optional vortex dry pump); One Pirani digital gauge (front stage) and two full range composite high vacuum digital gauges

application area

petrochemical industry
Essence
Tobacco and Liquor Industry
Food Safety and Environmental Protection
Identification of Traditional Chinese Medicine and Drug Metabolism