Y-Tea polyphenol rapid test reagent (tea drink)

Product introduction

Reagent constitute

Reagent 1, Reagent 2, the control bottle, colorimetric card, introduction 95% ethanol for self-service

Sample handling

1.      If the sample is relatively transparent (if it is the tea flavor), and then the sample can be fully shaken for use.

2.      more turbid sample solution, juice, tea drinks, said if sufficient mixing of sample liquid to take 25ml in 50ml volumetric flask, add 95% ethanol 15ml, sufficient for 15 minutes after shaking, use the water to constant volume to the mark. Use the slow quantitative filter paper to filter, the filtrate liquor is for use.

3.      Take the carbonated liquid sample 100ml to the 250ml burning cup. Weigh the total mass, and then placed in the furnace to heat it to be boiling, to heat in boiling 10 minutes, excluding the carbon dioxide. After cooling, to complement the water to the solution that to be the original total mass. Shake well for use.

Test steps and results judgment

Take the test solution 1ml into the 5ml control bottle, and add 1 ml of No.1 reagent, after mixing adding 3ml No.2 reagent. Mixing for 10 minutes, compared with the color card, find the corresponding color scale, corresponding to the gradation of the sample is the tea polyphenols content.