MOSSBAUER SPECTROSCOPIC STUDY OF IRON-OXIDE DEPOSITS IN LIVER-TISSUE FROM THE MARINE MAMMAL DUGONG DUGONG

被引：12

作者：

CHUAANUSORN, W

STPIERRE, TG

BLACK, G

WEBB, J

MACEY, DJ

PARRY, D

机构：

[1] MURDOCH UNIV,SCH BIOL & ENVIRONM SCI,PERTH,WA 6150,AUSTRALIA

[2] NO TERR UNIV,SCH CHEM & EARTH SCI,CANBERRA,ACT 0811,AUSTRALIA

来源：

HYPERFINE INTERACTIONS | 1994年 / 91卷 / 1-4期

关键词：

D O I：

10.1007/BF02064625

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A sample of liver from the marine mammal Dugong dugong was found to have an iron concentration of 137 000 mu g g(-1) Fe dry weight. Histological examination of the tissue revealed dense extracellular deposits of iron-containing particles about 40 to 80 mu m in diameter. Mossbauer spectra of the sample at temperatures between 17 and 200 K show superparamagnetic behaviour with a mean superparamagnetic blocking temperature of about 67 K, with the sextet being extinguished between 160 and 200 K. The blocking temperature and spectral parameters are indicative of the goethite-like form of hemosiderin that has previously been reported in some iron-loaded thalassemic human tissues.

引用

页码：899 / 904

页数：6

共 18 条

[1] MOSSBAUER SPECTROSCOPIC STUDIES OF HUMAN HEMOSIDERIN AND FERRITIN [J].