Nitrogen Evaporator Concentrator is utilized to concentrate solutions by evaporating the solvent, typically water. This is achieved by passing a stream of nitrogen gas over the surface of the solution, which causes the solvent to evaporate and leave behind a concentrated sample. This is particularly useful for reducing the volume of large samples to a more manageable size for further analysis. Apart from that, Nitrogen Evaporator Concentrator is often preferred over other concentration methods due to their ability to handle large volumes and their gentle treatment of samples, which minimizes the risk of degradation or loss of analytes.