Table 3. Buffer-compositions for HP1542 low spin down assay.

Description	Buffer composition
NaCl	50 mM Tris pH 7,5; 0,5–1,5 M NaCl
KCl	50 mM Tris pH 7,5; 0,5–1,5 M KCl
Urea	50 mM Tris pH 7,5; 50 mM NaCl; 0,5 M Urea
Arg/Glu	50 mM Tris pH 7,5; 50 mM NaCl; 50 mM L-Arg; 50 mM L-Glu
pH 5	50 mM C2H3NaO2, 50 mM NaCl, 5 mM EDTA
pH 6	50 mM MES, 50 mM NaCl, 5mM EDTA
pH 7,5	50 mM Tris, 50 mM NaCl, 5 mM EDTA
pH 8	50 mM Tris, 50 mM NaCl, 5 mM EDTA
pH 9	50 mM Tris, 50 mM NaCl, 5 mM EDTA