Vintessential: Citric Acid Test Kits for Wine

Citric acid may be used at the final stages of winemaking to make minor adjustments to acid levels without affecting the bi-tartrate stability of the wine.

In wine, it can be determined enzymatically by monitoring a reaction that consumes NADH. The amount of NADH consumed is measured at 340 nm and is stoichiometrically related to the amount of citric acid present.

Citric Acid 30 Test kit

Product Code: 4A126

Please note these tests require the use of a spectrophotometer.

Reagent No.	Reagent	Preparation	Quantity	Stability
1	Buffer	Nil	33 mL	1 year at 4°C
2	NADH	Add 1.7 mL of distilled water to either bottle as required, mix to dissolve	2 x 1.7 mL	1 year at 4°C / 1 month at 4°C once diluted
3	MDH/LDH	Mix gently by inversion before use	0.7 mL	1 year at 4°C
4	CL	Add 0.35mL of distilled water to either bottle as required, mix to dissolve	2 x 0.35mL	1 year at 4°C / 2 months at 4°C once diluted
5	Standard	Nil	3.3 mL	1 year at 4°C