alanine
glutaminezuur
lysine
ninhydrine
aceton
bufferoplossing pH = 4,0
bufferoplossing pH = 5,0
bufferoplossing pH = 6,0
bufferoplossing pH = 7,0
bufferoplossing pH = 8,0
bufferoplossing pH = 9,0
0,5 M zwavelzuuroplossing
0,1 M natronloog