Flame photometric gas chromatograph

The LX-3200FPD flame photometric gas chromatograph is equipped with a highly sensitive flame photometric detector, which can detect ppb sulfides or phosphides. Equipped with a fully automatic ultra-low temperature refrigeration concentration thermal desorption system, it can detect ppt level sulfides.

• typical analysis

energy industry

• Analysis of Impurities and Sulfides in Gas;
• Analysis of Impurities and Sulfides in Natural Gas;
• Analysis of decomposition products in sulfur hexafluoride;
• Trace sulfide impurity analysis in catalyst evaluation.

Environmental Protection Industry

• Analysis of sulfide impurities in the atmosphere;

• Working principle of flame photometric detector (FPD)
• Flame photometric detector (FPD) is a highly selective and sensitive detector used in gas chromatography for detecting compounds containing phosphorus and sulfur. When the sample is burned in a hydrogen rich flame, phosphorus containing organic compounds mainly emit light with a wavelength of 526nm in the form of HPO fragments, while sulfur-containing compounds emit characteristic light with a wavelength of 394nm in the form of S2 molecules. The photomultiplier tube converts light signals into electrical signals, which are amplified by microcurrents and recorded. This detector has a response value ratio of up to 104 for organic phosphorus and organic sulfur, compared to the response value for hydrocarbons. Therefore, it can eliminate a large number of solvent peaks and hydrocarbon interference, which is very beneficial for the analysis of trace phosphorus and sulfur. It is the main tool for detecting organic phosphorus pesticides and sulfur-containing pollutants.
• Flame photometric detector (FPD) detection limit:

• Flame photometric detector (FPD)+fully automatic ultra-low temperature refrigeration concentration thermal desorption system detection limit: