LabExpo Gas Chromatography Mass Spectrometry (GC-MS) system is a state-of-the-art analytical instrument that combines the power of gas chromatography with high-precision mass spectrometry to deliver sensitive, accurate, and reproducible results. This system is equipped with a high-precision pre-filter mass analyzer and an electron multiplier, which ensures high sensitivity for a wide range of applications, from environmental testing to pharmaceutical analysis.
One of the key features of this GC-MS system is its ability to handle desorption for solid samples at controlled temperatures ranging from 100°C to 350°C, with a consistent flow rate of 1 to 1.5 ml/min, making it ideal for analyzing volatile and semi-volatile compounds. The GC unit offers an inlet temperature of up to 450°C and supports a maximum flow rate of 10 ml/min, ensuring efficient sample introduction and separation. The system’s temperature programming consists of seven stages with up to eight platforms, allowing for highly customized analysis with precise control. This ensures optimal separation of complex mixtures, while the interface temperature of 450°C enhances sensitivity and specificity.
In terms of performance, the system offers a wide pressure range of 0 to 100 psi, controlled electronically, and supports both split and splitless injection modes with a high split ratio of 1000:1. This versatility ensures the system can accommodate various sample types and concentrations, making it a flexible solution for laboratories with diverse analytical needs. With a heating rate of up to 120°C/min and an operating room temperature range of 4°C to 450°C, it offers rapid analysis without compromising accuracy.
The mass spectrometer (Model MS-89) complements the GC system with a mass range of 1.5 to 1000 amu, enabling the detection and quantification of a broad spectrum of compounds. It features a fast scan rate of up to 10,000 amu/s and a stability of ±0.10 amu over 48 hours, ensuring reliable long-term operation. The ion source operates at temperatures between 100°C and 350°C, providing flexibility for different sample types, and the filament emission current ranges from 0 to 350 µA with ionization energy adjustable from 5 eV to 250 eV. The system achieves unit resolution, ensuring the clarity and precision of mass spectra, while the high-energy dynode electron multiplier guarantees high sensitivity with a full scan signal-to-noise ratio (S/N) of ≥ 30:1.
The GC-MS system is equipped with a turbo molecular pump vacuum system, which operates at a speed of 67 L/s, providing excellent vacuum stability and reliability for high-precision measurements. The electronic flow control system further enhances analytical accuracy by maintaining precise gas flow rates, contributing to the system's overall stability. The pre-filter mass analyzer reduces quadruple filtration, improving sensitivity and reducing maintenance requirements.
For added convenience, the system is software-controlled, allowing for easy operation of the gas chromatograph, mass spectrometer, and optional auto sampler. This level of automation increases throughput and productivity, making it possible to screen and quantify over 1,000 compounds in a single run, thus boosting laboratory efficiency.
In summary, the LabExpo GC-MS system is a powerful and versatile tool that meets the demands of modern analytical laboratories, offering high sensitivity, precision, and reliability across a wide range of applications.
