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Book Review Anleitung zum Messen von Absorptionsspektren im Ultraviolett und Sichtbaren (Directions for Meassuring Absorption Spectra in the Ultraviolet and Visible Regions). By M. Pestemer

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with the other chapters, and the Atlas-Werke in Bremen Is
given too strong preference by frequent mention in the text
and in the figures compared with other instrument manufacturers.
However, on the whole, this book can be recommended as an
introduction to and a review of the complete field of mass
spectrometry for a broad range of readers, including physicists, chemists, and engineers, as well as geologists and mineralogists, and even clinical physicians and biologists.
H . Kienitz
[NB 335/193 IE]
Anleitung zum Messen von Absorptionsspektren im Ultraviolett
und Sichtbaren (Directions for Measuring Absorption
Spectra in the Ultraviolet and Visible Regions). By M.
Pestemer. Georg Thieme Verlag, Stuttgart 1964. 1st edit.,
viii + 78 pp., 7 figs., paperback DM 7.80 (about rS2.00).
This little pocketbook attempts to give foolproof instructions
for the measurement of absorption curves for purposes of
structural investigations or for determining concentrations.
In the first section (26 pages), the fundamental aspects of optical absorption are introduced, and the most important
structural elements of spectral photometers are described.
This is followed by a discussion of sources oferrors (14 pages),
including information on the measurement of fluorescence
spectra and o n the determination of the direction oftransition
moments. There follow some practical procedures for the purification of samples and solvents, and then several tables are
given containing a variety of data.
The book contains a number of useful tips, but for more detailed information and discussions, recourse will still have to
be made to more comprehensive works. More precise specifications are desirable occasionally, e . g . in the description of
the prerequisites for the validity of Beer’s law (p. 10). In the
discussion of methods for determining the direction of transition moments (p. 38), the expressions “direction of photoexcitation” or “orientation of electronic excitation” are used,
but the correct term “transition moment” does not appear.
Moreover, magnetically induced dichroism of molecules in
solution has probably never been used to evaluate the direction of transition moments (p. 39). The concept of the transition moment or transition probability is also not utilized in
the discussion of the Beer-Lambert equation; instead, a n absorption equation is derived on the basis of the absorption
cross-section - a concept n o longer used in molecular specW . Liptriy
[NB 2651123 IE]
troscopy (p. 8).
Biochemie der Mineral- und Spurenelemente (Biochemistry of
Mineral and Trace Elements). By TI?. Bersin. Akademische
Vcr-iagsgesellsc!iaft, Frankfurt/Main 1963. 1st Edit., XVI +
695 pp., 99 figures, 1 color plate, linen, DM 68.- (about
S 17.25).
The importance of trace elements (i. e. elements required in
only minute concentrations by living organisms) in both biochemistry and medicine has become more and mole apparent
within recent years. Since no monograph had hitherto been
published on this iapidly developing field, the attempt to give
a comprehensive survey is worthy of recognition. Bersin has
divided his book into three main sections, which can be characterized as follows: theoretical fundamentals and general
importance; descriptions of individual trace elements; practical applications.
The second part of the book is the longest and completest
(pp. 238-554); here the importance of the individual trace
elements is recorded, almost in the form of a handbook. The
val~ieof this compilation is evident from the fact that, in the
reviewer’s estimation, over 907; of the numerous publications
cited appeared within the past ten years. A list of references
as complete as this is hard to find anywhere else. Probably due
to the compactness of this review of a field which is still in
rapid development, important papers with well-founded
results are often given just as little space as work of poorer
Angerv. Cliem. intermit. Edit.
Vol. 4 (1965)
1 No. 4
quality. Critical appraisal of the contents of the book is thus
left to the redder.
Before the individual trace elements are discussed, the ligands
with which they are associated are dealt with. I t would have
been better to have coupled this discussion with that of the individual elements in order to avoid frequent repetition of the
same data in various parts of the book. Thus, for example,
relatively long descriptions of transferrin are found on pp.
178-180. and again o n pp, 320-321. The same applies to
ferritin, chlorophyll, vitamin BIZ,and most of the other naturally occurring metal chelates whose structures are known. I t is
particularly redundant to repeat complicated structural formulae, when a cross-reference would have sufficed.
The applications of chelates recounted in the final section
(pp. 555-63 1) impressive by demonstrate how deeply coordination chemistry has penetrated into biology, medicine, therapy, and agronomy.
The introductory section (pp. 5-1 36) must be criticized more
strongly. The fundamentals required for an understanding of
the subject are to be disclosed here, but the arrangement of
the material is didactically inadequate. For example, the reader is confronted with the concept of hybridization on p. 1 I ,
whereas the discussion of the chemical bond only starts on p.
36. The gap between is filled with such variegated topics as
chelates, polynuclear complexes, inclusion compounds, association colloids, and exchange reactions. Obviously such a n
array of different themes condensed into such little space must
occasionally fall short of a correct deduciive treatment.
Experimental methods should have been discussed more
Despite these reservations, the book ought to prove useful for
research workers in this field. It provides a key to theliterature
o n the subject and serves as an introduction t o special problems. The book is intended for use by chemists, physicians,
biologists, and agronomists.
Ernst Bayer
[ N B 339/197 IE]
Schmelzpunkttabellen organischer Verbindungen (Tables of the
Melting Points of Organic Compounds). By W. Uterrnark
and W. Schicke. Friedrich Vieweg & Sohn, Braunschweig
715 pp., linen DM 75.- (about
1963. 2nd Edit., XXXII
$ 19.-).
I n this second edition, in accordance with the title of the
book, the melting point - as the essential criterion for
identifying organic compounds - has been maintained as the
ordering principle. Over 3200 of the most important organic
compounds with melting points between -189.9OC and
+5OO”C are tabulated for rapid checking by analysts for
purposes of identification 01 purity control.
The good formula and trivial name indices given provide
helpful keys to the use of the complete tables. An important
plus for this book is its inclusion - contrary to t h e usage of
handbooks and pocketbooks, which often list more substances - of not only columns for the molecular weight,
density, refractive index, melting point, boiling point,
solubilities, color, crystal form, and a reference of each
compound, but also of columns for “structural formula”,
“physical constants and properties”, and “typical reactions
and derivatives”.
It is unfortunate that the authors have not succeeded i n
finding specific reactions for every compound, and it would
be profitable if they could fill up the space allotted to“physica1
constants and properties”, for this is sometimes yawningly
vacant. For most of the substances, it is a very old reference
to the original volumes of Beilsteins Handbuch that is given,
and for 10 or 207{ of the compounds there is no literature
reference at all ( e . g . for lupolone, p. 238, 7-dehydrocholester01, p. 362, or sulfathiourea, p. 436). Current usage in nomenclature has not been applied throughout; for example, tetraethyltin would have been better than tin tetraethyl (p. 12),
and the names of substituents in compounds should have
been placed in alphabetical order. However, these and other
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