LIBS detection of cadmium in Panax notoginseng

Overview

Laser-induced breakdown spectroscopy (LIBS) was applied for rapid detection of cadmium in Panax notoginseng (tienchi ginseng, san qi), a traditional Chinese medicinal herb. The paper primarily demonstrates LIBS as a rapid method for botanical quality control. Whether occurrence data for Cd in actual P. notoginseng samples are reported requires reading the full paper; the abstract indicates method development focus.

Key numbers

• Specific LOD, calibration, and detection performance in full paper.
• Occurrence data for Cd in P. notoginseng samples: confirm from full paper.

Methods (brief)

LIBS (laser-induced breakdown spectroscopy) for total elemental analysis. Not a speciated method. Botanical matrix (dried plant material).

Implications

Certification: Relevant if Panax notoginseng or similar botanicals are an ingredient category of concern. Chinese regulatory limits for heavy metals in traditional Chinese medicine (TCM) botanicals exist under Chinese Pharmacopoeia. Courses: Demonstrates LIBS as a rapid screening tool for botanical ingredients.

Wiki pages updated on ingest

• Cadmium

Update history

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