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Rapid detection of arsenic, antimony, bismuth and mercury compounds

 Last Update: 2022-03-17
 Source: Internet
 Author: User

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bismuth chloride

1 4 dichlorobenzene

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[Detection principle]

With the continuous improvement of living standards, people pay more attention to the quality and safety of food, and the occurrence of food safety incidents caused by some environmental pollution problems makes the supervision of food quality and safety become one of the priorities of the quality supervision department

[Steps]

Take 5g of the sample in a conical flask, add 25mL of distilled water or purified water, 5mL of hydrochloric acid, and about 0.

[Result judgment]

If the surface of the copper sheet changes color after heating for 30 minutes, the possible compounds in the sample can be inferred according to Table 4-1, and the sample should be retained and confirmed separately if possible

Table 4-1 Judgment of the detection results of arsenic, antimony, bismuth, and mercury compounds

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