Page 25 - Vogel's TEXTBOOK OF QUANTITATIVE CHEMICAL ANALYSIS
P. 25

PREFACE TO  THE  FlFTH EDlTlON













       We consider ourselves most fortunate to have had the opportunity to continue
       the  collaboration  we  enjoyed  over  the  previous  Fourth  Edition  of  Arthur  1.
       Vogel's  Textbook  of  Quantitative  Inorganic  Analysis  and  to  prepare  this
       Fifth Edition.
         It will not have gone unnoticed by readers familiar with earlier editions that
       the  title  has  now  been  altered  to  Vogel's  Textbook  of  'Quantitative  Chemical
       Analysis'. This has been done because the growth and development of analytical
       chemistry has now totally blurred the boundaries which rather artificially existed
       between inorganic and organic chemistry. As a result we have made a deliberate
       policy  to  incorporate  a  number of  useful  organic analytical  applications and
       experiments in the new text. It says much for the foresight of Dr Vogel that he
       clearly  anticipated  this  development as in  the  Third  Edition  he  incorporated
       organic fluorescence and an introductory chapter on infrared spectroscopy, and
       we have built  upon this basis. As a result this volume is a far more substantial
       revision than that which was given to the Fourth Edition and we  believe that
       it will be of value to an even wider readership in both academic and industrial
       circles.
         One change that will be evident to many chemists is the deletion of normalities
       and equivalents from the body of the text. This has been done because current
       teaching and al1 Our external contacts indicated  that there was little long-term
       benefit  in  retaining  them.  However,  there  are  many  older  readers  who  still
       employ this system and because of this we have retained a detailed explanation
       of normalities and equivalents as an Appendix.
          The other changes we have made are almost too numerous to list separately
       in a Preface. As far as possible al1 subject areas have been up-dated and numerous
       references given to research  papers and other textbooks to enable the reader to
       study particular topics more extensively if  required.
          Part A, dealing with the Fundamentals of  Quantitative Chemical Analysis,
       has been extended to incorporate sections of basic theory which were originally
       spread around the body of the text. This has enabled a more logical development
       of  theoretical concepts to be possible. Part B, concerned with errors, statistics,
       and sampling, has been  extensively rewritten  to cover modern  approaches to
       sampling as well as the attendant difficulties in obtaining representative samples
       from  bulk  materials. The statistics has  been restructured to provide a logical,
       stepwise approach to a subject which many people find difficult.
          The very extensive changes that have taken place over recent years and the
       broad application to organic separations necessitated a major revision of Part C
       covering solvent extraction and chromatographic procedures. These particular
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