Contracting Of The Corrective Maintenance Service Of The Fourier Transform Infrared Spectrophotometer (Ftir) And Uv-Visible Spectrophotometer Equipment - Contracting Of The Corrective Maintenance Service Of The Fourier Transform Infrared Spectrophotometer (Ftir) And Uv-Visible Spectrophotometer Equipment From The Food Nanotechnology Research Laboratory - Lina, From The José María Arguedas National University, Santa Rosa Headquarters