Facial products in aluminum rapid test kit instruction manual

Product number: SCHM-47

1 introduction

food in the processing process often add leavening agent aluminum potassium sulfate or aluminum ammonium sulfate, aluminum through food into the human body, accumulation in the body, will damage brain cells, is one of the causes of dementia, while affecting the absorption of iron and calcium and other components, resulting in osteoporosis, anemia, and even affect the development of nerve cells.

2 limit standard

GB2760-2014 "food additives use standards" stipulates: batter, fried flour products in aluminum residues can not exceed 100 mg/kg.

3 Detection principle

After the sample is treated, trivalent aluminum ions in the buffer medium, and the color reagent reaction to form a blue ternary complex, the color of blue is positively related to the number of aluminum ions.

4 Detection range, churros, flour and other flour products.

5 Technical indicators, detection limit: 25 mg/kg

6 Need your own tools

Balance (0.1-100 g), purified water, 1-5 ml pipette (optional), timer

7 Sample determination

(1) Cut or mince the sample to be tested, weigh 0.5 g in the sample cup;

(2) Pipette 1 mL Reagent A into the sample cup with a 1 mL straw, add purified water to 10 mL scale. Stir well for 2 minutes, let stand for 5 minutes, as the liquid to be tested.

(3) Take 0.5 mL of purified water and 0.5 mL of the liquid to be tested into a 5 mL colorimetric tube with a straw and mix well;

(4) Take 1 mL of reagent B into the above colorimetric tube with a clean straw, cover and shake well, and let stand for 3 minutes to observe the results.

(5) The result is determined

If the solution is yellow, it indicates that the sample does not contain aluminum;

If the solution is blue-green or blue, it indicates that the sample contains aluminum.

Control colorimetric card judgment result. The test results for more than 10 minutes are for reference only.

8 Precautions

(1) Purified water is recommended for testing water.

(2) This product is only used for initial screening, and the final result is subject to the relevant national standard methods.

(3) When using straws, pay attention to avoid cross-contamination, and be sure to clean them when taking different liquids.

9 Storage conditions and valid period

Reagents are stored in a cool and dry place at 4-25 ° C, and the valid period is 12 months.

10 Kit packing list

Serial number

Specifications

Composition

10 times/box

50 times/box

100 times/box

1

reagent A

1 bottle

1 bottle

1 bottle

2

reagent B

1 bottle

1 bottle

1 bottle

3

1 mL disposable straw

10

50

100

4

graduated sample cup (recyclable)

1

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