INTRODUCTION Quality drinking water should be free from harmful levels of impurities such as heavy metals and other inorganic elements. METHODS Samples of tap water collected from 24 locations in Peninsular Malaysia were determined for inorganic element content. Minerals and heavy metals were analysed by spectroscopy methods, while non-metal elements were analysed using test kits. RESULTS M...

The cells of the green unicellular alga Scenedesmus incrassatulus Böhl, strain R-83 released organic chelators for Fe(III) in inorganic nutrient medium both in iron-deficient and in iron-replete conditions. Iron-deficient cells released chelators capable to bind 11nmol Fe. mg (cell DW)–1.h–1, while the chelators released from iron-sufficient cells after contact with Fe(III) were sufficient to b...

1. A group of dogs on a standard salmon bread diet with a slowly regenerating anemia were studied. The addition of liver to this diet during a 2 week period promoted a definitely greater regeneration of hemoglobin than did the addition of an amount of inorganic iron which was equivalent to that contained in the added liver. The more effective result attained with liver cannot, therefore, be att...

Gilles Gasser,* Ingo Ott,* and Nils Metzler-Nolte* Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland, Institute of Pharmaceutical Chemistry, Technische Universit€ at Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany, and Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr Univ...

The influence of ethylenediaminetetraacetic acid (EDTA) and chemical species on arsenic accumulation in aquatic floating macrophyte Spirodela polyrhiza L. (duckweed) was investigated. The uptake of inorganic arsenic species (arsenate; As(V) and arsenite; As(III)) into the plant tissue and their adsorption on iron plaque of plant surfaces were significantly (p<0.05) higher than those of organic ...

Photosynthetic organisms are among the earliest life forms on earth and their biochemistry is strictly dependent on a wide range of inorganic nutrients owing to the use of metal cofactor-dependent enzymes in photosynthesis, respiration, inorganic nitrogen and sulfur assimilation. Chlamydomonas reinhardtii is a photosynthetic eukaryotic model organism for the study of trace metal homeostasis. Ch...