running spectra on L-phenylalanine: 
11082301: dH2O baseline
11082302: 700 ul of L-phenylalanine 
11082303: 140 ul L-phenylalanine + 560 ul H2O 
11082304: 50 ul of L-phenylalanine + 650 ul H2O
11082305: 20 ul of L-phenylalanine + 680 ul H2O 
11082306: r