In quality control and chemistry, analytical samples are usually mixtures. Understanding the main compound’s assay and the number of impurities or other unwanted substances in the sample is essential ...
It is thought that without the use of fertilizers, around half of the world’s population could not be supported 1. In the modern world, agriculture at a significant scale without fertilizers is no ...
IN this new edition of a well-known text-book the type has been completely reset and a large part of the text rewritten. Additions include accounts of the gravimetric and volumetric determination of ...
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