As one of the commonly used laboratory equipment, the nitrogen generator is known to provide high flow and over 95% purity nitrogen gas as atomization and drying gas for LC-MS ion source under certain pressure.
In the LC-MS ion source section, high flow, high-purity (over 95%) nitrogen gas is required, which needs to be used as a gas for atomization, drying, etc. under specific pressure. In addition, some manufacturers may also choose to use dry air that meets specific requirements. It should be noted that the gas source must not react with the target substance, nor introduce other impurities to avoid affecting the operation of the mass spectrometer. At the same time, the gas source should not increase the maintenance and cleaning work of the ion source. The flow rate, purity, quality, and stability of the gas supply system of nitrogen are all crucial factors for the operation of mass spectrometry. Therefore, when selecting a gas source, these factors need to be carefully considered to ensure the stability of the mass spectrometry.
Application of Nitrogen Generator in Nitrogen Evaporator
Nitrogen evaporator is a widely used sample pretreatment method in laboratories. With the help of a nitrogen evaporator or concentrator, we can continuously and controllably blow nitrogen gas onto the surface of the sample. This process can promote the rapid evaporation of solvents in the sample, thereby achieving concentration of the sample. According to different heating methods, nitrogen evaporators can be divided into three types: dry, water bath, and air bath. The fully automatic nitrogen evaporator is widely used in nitrogen generators, which can provide continuous and stable nitrogen gas.
ELSD Application of Nitrogen Generator
Evaporative light scattering detector, abbreviated as ELSD, is an HPLC detector based on atomization aerosol technology. It is particularly suitable for detecting non-volatile sample components in volatile eluents. In the process of spray evaporation, the pressure and flow of gas, the concentration of sample and the selection of eluting solvent all play an important role.
Usually, nitrogen is used as the gas source for this type of detector. Throughout the entire analysis process, it is necessary to ensure the purity of the gas (up to 99.5%) and maintain a constant pressure. The gas flow rate is generally controlled between 0.5 and 5.0 liters per minute, which is closely related to factors such as solvent volatility and column flow rate. At the same time, the gas must be kept clean, dry, and inert to prevent the generation of high background noise, thereby ensuring the accuracy and reliability of the detection results.
CAD Application of Nitrogen Generator
The electric fog detector, as a universal detection tool, exhibits extremely high sensitivity and excellent repeatability. It is widely used to detect various non-volatile and semi volatile organic compounds, such as pharmaceutical ingredients, natural products, sugars, proteins, and surfactants. This wide applicability makes electric fog detectors play an important role in the field of analysis.
Nitrogen plays a crucial role in the operation of electric mist detectors. It can not only achieve sample atomization drying, but also make the sample charged through collision. The higher the purity (up to 99.5%) and stability of nitrogen, the higher the sensitivity and lower the detection limit of the electrospray detector. This not only ensures the accuracy of the test results, but also further guarantees the repeatability and stability of the results. Therefore, the quality of nitrogen is crucial for the performance of electric mist detectors.
