[Research progress of chromium and its speciation analysis].

Area of Science:

• Environmental Science
• Materials Science

Background:

• Chromium is widely used in industry due to its beneficial properties.
• Regulatory standards exist for chromium in food and traditional Chinese medicines.
• Different chromium species have varying toxicities, necessitating speciation analysis.

Purpose of the Study:

• To summarize the current research status of chromium.
• To provide a reference for scientific research and pollution prevention related to chromium.

Main Methods:

• Literature review on chromium properties, applications, and analysis.
• Discussion of challenges in chromium speciation research due to transformation and migration.

Main Results:

• Chromium's industrial importance and presence in food and medicine are highlighted.
• The difficulty in analyzing chromium speciation due to interconversion is noted.

Conclusions:

• Understanding chromium speciation is crucial for accurate research and effective pollution control.
• Further research is needed to overcome analytical challenges in chromium speciation.