Acetonitrile, Optima LC/MS Grade

Optima LC/MS Grade acetonitrile is an organic solvent specially purified for use in highly sensitive chromatographic and mass spectrometric analysis methods. The reagent is in demand in pharmaceutical quality control, clinical diagnostics, environmental monitoring, and the food industry for the preparation of mobile phases, sample extraction, and sample dissolution. The product undergoes a multi-stage purification process, including distillation, filtration through a 0.1 micron membrane and quality control at each stage of production. The purity of acetonitrile is at least 99.9 percent, and the water content does not exceed 0.01 percent. The residue after evaporation is no more than 0.8 millionths, which eliminates the accumulation of non-volatile contaminants in the chromatographic system. The key advantage of this brand is the low level of UV absorption over the entire wavelength range from 190 to 400 nanometers. The absorption index at 254 nanometers does not exceed 0.005 units, which ensures a smooth baseline and the absence of false peaks during gradient elution. The content of 17 metal impurities, including sodium, magnesium, aluminum, iron and copper, is controlled at the level of units and tens of billionths. This minimizes the formation of metal adducts during mass spectrometric detection and reduces background noise.