Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0022-5142

The problems arising from contamination in soil and plant analysis are important chiefly in trace element work and originate either during the sampling and preparative stages or in the laboratory. With soils the chief danger occurs during transport in unsuitable containers or during drying and sieving. Plants are liable to be contaminated by soil, and means of assessing its severity and its possible effect on analytical results by determination of the apparent Ti content of the plant material are described. Contamination arising in the laboratory can be minimised by stringent precautions at all stages of the work, and by the use of carefully selected and, if necessary, purified reagents.

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