贝类的外套膜与形成贝壳和珍珠有关,因而从组织学、生物化学、生理学等方面都有不少研究。Beedham(1958)研究指出,外套膜的外表皮细胞有强的碱性磷酸酶活性。Kado(1960)使用碱性磷酸酶抑制剂,研究了长牡蛎外套膜Ca^45的代谢量变化。B...贝类的外套膜与形成贝壳和珍珠有关,因而从组织学、生物化学、生理学等方面都有不少研究。Beedham(1958)研究指出,外套膜的外表皮细胞有强的碱性磷酸酶活性。Kado(1960)使用碱性磷酸酶抑制剂,研究了长牡蛎外套膜Ca^45的代谢量变化。Bevelander and Nakahard(1966)研究指出,展开更多
Atomic absorption and plasma arc spectroscopy were used to determine the contents of Ca,Mn,Cu,Ni,Co,Pb,Zn,Fe,Mg,Hg,Mo,Cr,totally 12 macro and trace elements in yellow,white and black pearls.The results showed that all...Atomic absorption and plasma arc spectroscopy were used to determine the contents of Ca,Mn,Cu,Ni,Co,Pb,Zn,Fe,Mg,Hg,Mo,Cr,totally 12 macro and trace elements in yellow,white and black pearls.The results showed that all the three kinds of pearls contained Ca of more than 3×104 mg/100g.The contents of Mn,Cu,Fe,Mg were above 1mg/100g.Ni,Co,Pb,Mo,Cr,Zn had less contents in the pearls,and Hg had the least.It was also showed that Mn,Cu,Pb,Zn,Mg,Co and Cr contents in different colorpearls varied greatly.展开更多
文摘贝类的外套膜与形成贝壳和珍珠有关,因而从组织学、生物化学、生理学等方面都有不少研究。Beedham(1958)研究指出,外套膜的外表皮细胞有强的碱性磷酸酶活性。Kado(1960)使用碱性磷酸酶抑制剂,研究了长牡蛎外套膜Ca^45的代谢量变化。Bevelander and Nakahard(1966)研究指出,
文摘Atomic absorption and plasma arc spectroscopy were used to determine the contents of Ca,Mn,Cu,Ni,Co,Pb,Zn,Fe,Mg,Hg,Mo,Cr,totally 12 macro and trace elements in yellow,white and black pearls.The results showed that all the three kinds of pearls contained Ca of more than 3×104 mg/100g.The contents of Mn,Cu,Fe,Mg were above 1mg/100g.Ni,Co,Pb,Mo,Cr,Zn had less contents in the pearls,and Hg had the least.It was also showed that Mn,Cu,Pb,Zn,Mg,Co and Cr contents in different colorpearls varied greatly.