Determination of As and Hg in Gardenia jasminoides by Atomic Fluorescence Spectrometry with Microwave Digestion
To determine the content of two harmful heavy metal elements (As and Hg), and establish a detection method for As and Hg in Gardenia jasminoides.[Method] After microwave digestion of the sample, the content of As and Hg was determined by atomic fluo-rescence spectrometry.[Result] The As content in Gardenia jasminoides was 0.1045 mg/kg, and the Hg content was 0.0141 mg/kg, both of which were lower than the national standard and comply with the limit requirements of the 2020 edition of the Chinese Pharmacopoeia.[Conclu-sion] This method was efficient, accurate, reliable and highly precise, providing a simple and fast testing method for the quality control and monitoring of As and Hg in traditional Chinese medicine.