貝類藥材中砷含量之調查研究   全文下載

Survey of Arsenic Contents in Shell-Medicament Used as Chinese Medicine

貝類外殼為以碳酸鈣構築保護此軟體動物之硬骨組織，在貝類生命期中，硬殼會隨著軟體組織成長而增生。在中藥處方中有以珍珠、牡蠣、石決明、瓦楞子等為藥材。而近年來工業廢水污染海水，造成海洋生物大量死亡，破壞海洋生態平衡並使得海洋生物體內堆積某些物質。以中藥用藥安全上之考量，將一些用於中藥材的貝類硬殼如珍珠、牡蠣、石決明、瓦楞子等，經過酸液消化處理後，以氫化物生成法原子吸收光譜儀定量砷元素。結果四種貝類中藥材中砷之含量分別為4.45 ppm、3.41 ppm、1.93 ppm 及5.28 ppm。此一結果顯示市售貝類中藥材中砷含量仍在人體耐受範圍以內。

The shells of mollusks such as Concha Haliotidis (Shijueming), Concha Arcae (Walengzi), Concha Ostreae (Muli) and Pearl are used as ingredients in certain Chinese medicines. Such shells can accumulate heavy metals. Because arsenic is toxic to humans, an investigation of arsenic content in these medicaments is necessary to protect the health of humans. The shells of mollusks were digested with diversified acids, and then surveyed by hydride generation atomic absorption spectrometry. The arsenic content was 4.45, 3.41, 1.93 and 5.28 ppm in Pearl, Muli, Shijueming, and Walengzi respectively. All were below the announced levels of safe and adequate daily dietary intake for humans.