Detection of Lead, Mercury and Arsenic in Hanyu Amino Acid Hydrating Mask
Release Date ：2025-03-24
1 Sample solution preparation: Weigh about 1g (accurate to 1/10,000) of the sample in a high-pressure digestion tank, add 3mL of nitric acid, let stand overnight, add 2mL of hydrogen peroxide, cover, put in a stainless steel outer tank, put in an oven at 140 degrees for 3h, cool to room temperature, remove, transfer bandwidth evaluation to 10mL, rinse the tank with deionized water at least 3 times. Pb: Take the treatment solution directly on the machine (matrix modifier is 1% ammonium dihydrogen phosphate) As: hydride - atomic absorption, take the treatment solution 2mL Add 10% thiourea - ascorbic acid solution 1mL, add 0.53mL hydrochloric acid, bandwidth evaluation to 10mL Download Accessories
| Application Field : | Release Date :2025-03-24 |
| Test Sample : | Test Parameters :Cosmetics industry |
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Detection of Lead, Mercury and Arsenic in Hanyu Amino Acid Hydrating Mask
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