Dairy protein rapid test kit instruction manual Product number: YC052N01H

1. Method principle:

Protein can react with biuret reagent in purple, and the color depth is proportional to the protein content.

Second, scope of application:

This kit is suitable for rapid determination of protein content in dairy products (except dark dairy products).

three, you need to bring your own tools

purified water, timer

four, detection steps:

liquid dairy:

1, with a straw to take 1 ml of sample in the sample cup, add purified water to 10 ml scale, mixing, as the test liquid;

2, absorbing 1 ml of the test liquid in the colorimetric tube, plus 1 ml of reagent A (with a clean straw to avoid cross-contamination), upside down mixing; 3-5 minutes after comparison with the colorimetric card, the protein content in the sample can be obtained.

Milk powder:

1, weigh 1.0 g of sample in the sample cup, add about 5 ml of purified water, stir to dissolve the sample completely, add purified water to 10 ml scale, mix well, as the sample dilution;

2, take 1 ml of sample dilution in the sample cup, add purified water to 10 ml scale, mix well, as the test liquid;

3, take 1 ml of sample to be tested in the test tube, add 1 ml of reagent A (with a clean straw to avoid cross-contamination), mix up and down for 3-5 minutes and compare with the colorimeter, the protein content in the sample can be obtained.

5, Precautions:

Reagent A is corrosive, the operation should be careful.

Six, product storage conditions and shelf life:

Storage conditions: cool and dark dry storage

valid period: 1 year

seven, kit composition

serial number

specifications

composition

10 times/box

50 times/box

100 times/box

1

reagent A

1 bottles

1 bottles

1 bottles

2

graduated sample cup (recyclable)

1

1

1

1

1

3

2mL

2

4

8

4

1mL straw

10

50

100

5

color card

1

1

1 1172779