Colorimetric o-phthaldialdehyde (OPA) method kit for determination of alpha amino nitrogen in wine/juice
Alpha-Amminic Nitrogen Enzymatic Wine Kit
The EZkem α-Amminic Nitrogen Enzymatic Wine Kit for Systea Discrete Analyzers includes:
2 x 50 mL — Buffer reagent, ready to use
2 x 50 mL — Chromogen (liquid)
1 x 2.5 mL — Starter reagent (liquid)
1 x 10 mL — Standard (liquid)
Store at +2-8°C. Do not freeze.
Stable until expiration date on packaging.
Opened reagents: After opening, individual bottles are stable until expiration date printed
on bottle if recapped immediately after use and kept out of direct light.
Working reagent (R1): Stable 3 days at +2-8°C