Chemical Speciation in the Environment by A. Ure, C. Davidson

By A. Ure, C. Davidson

This booklet is very prompt for a broader clinical readership. it may not just locate its position at the bookshelf of analytical chemists and 'speciation researchers' yet may also function a great resource of knowledge for environmental scientists outdoors the specialized neighborhood.

Show description

Read Online or Download Chemical Speciation in the Environment PDF

Similar chemistry books

Nuclear Magnetic Resonance: A Review of Chemical Literature: Vol 31 (Specialist Periodical Reports)

As a spectroscopic approach, Nuclear Magnetic Resonance (NMR) has noticeable dazzling progress during the last twenty years, either as a method and in its functions. this present day the purposes of NMR span quite a lot of medical disciplines, from physics to biology to drugs. every one quantity of Nuclear Magnetic Resonance includes a mix of annual and biennial studies which jointly offer entire of the literature in this subject.

d-Orbitals in the Chemistry of Silicon, Phosphorus and Sulfur

This e-book was once undertaken for the aim of bringing jointly the commonly assorted strains of experimental paintings and considering which has been expressed yet has frequently been unheard at the name query. it will likely be transparent to the reader severe standpoint has been maintained in assembling the fabric of this speedily increasing region of shock to natural chemists.

Extra resources for Chemical Speciation in the Environment

Sample text

G. AlIII, FeIII, ThIV) which were present mainly in colloidal or particulate form (Benes and Steinnes, 1974). Gel permeation chromatography (or gel filtration) also separates species in solution on the basis of molecular size. The sample is introduced to the top of a column filled with solvent-swollen, uncharged, cross-linked macro-molecular gel. On elution with solvent, the solutes are partitioned between the stationary and mobile phases and steric effects promote separation of sample components.

Metals associated with high-molecular-weight organic materials have been characterised by passing the sample through a series of membranes which decrease in pore size. Dialysis membranes (made of cellulose acetate, collodion or gelatin) have pore diameters in the 1–5 nm range and fractionation of species is based on their differential rates of diffusion through the pores. It has been noted that negatively charged species diffuse very slowly and the migration of other ionic species can be restricted by the development of a potential across the membrane.

And McDuffie, B. V. and Chelex column and batch methods. Anal. , 52, 1433–1439. M. (1977) Trace metal species in fresh waters. , 11, 681–687. M. (1982) Development of physicochemical speciation procedures to investigate the toxicity of copper, lead, cadmium and zinc towards aquatic biota. Anal. Chim. Acta, 141, 73–94. M. E. (1976) Trace metal species in seawater. I. Removal of trace metals from seawater by a chelating resin. Talanta, 23, 179–186. M. E. (1980) Chemical speciation in natural waters.

Download PDF sample

Rated 4.70 of 5 – based on 42 votes