Nitrogen concentrators also known as sample concentrator(sample evaporator), usually blows nitrogen into the surface of heated samples to concentrate samples. It has the characteristics of time saving, convenient operation, easy control, etc., and can quickly get the expected results. It is widely used in pesticide residue analysis, commodity inspection, food, environment, pharmaceuticals, biological products and other industries, as well as in sample preparation for liquid phase, gas phase and mass spectrometry analysis.
