Morpholine sulfonic acid buffer ( mops)
"1.reahenty analytical laboratory, not medical, -kadmiy standard solution of attorney to nist cd (no3) 2 in hno3 0,5 mol / l 1000 mg / l cd certipur�, 100 ml art.1.19777.0100- 1pc; -tbe 10 x buffer ph 8.3 tris-borate-edta buffer, 2.5 l, art.1.06177.2500 - 1pc; -test on sulphites test method: kolory