Antimony in the environment: a review focused on natural waters: I. Occurrence

Antimony in the environment: a review focused on natural waters: II. Relevant solution chemistry

The geochemistry of arsenic and its use as an indicator element in geochemical prospecting

Antimony in the environment: A review focused on natural waters. III. Microbiota relevant interactions

I. INTRODUCTION Chemical speciation may be defined as the determination of the individual concentrations of the various chemical forms of an element which together make up the total concentration of that element in a sample. The next decade will certainly see a blossoming of interest from chemists, biochemists, and biologists in techniques for chemical speciation. This is because it is becoming more and more apparent that both bioavailability and toxicity are critically dependent on the chemical form of the substance under test. Measurement of the total concentration of a nutrient or a trace element provides very little information about the bioavailability of the substance, since many vitamins and essential elements are now known to exist in a variety of chemical forms, the assimilability of which vary greatly.1–3 For example, niacin and folic acid exist in some foods in bound forms which are unavailable to many species,4 and the same is true of a whole range of essential metals, including iron, zinc, co...

Thomas R. Gilbert

Papers

Direct determination of bismuth and antimony in sea water by anodic stripping voltammetry

Improved apparatus for determination of mercury by flameless atomic absorption