Inorganic analytical chemistry classical analysis

We start with butane-2,3-dione dioxime, more commonly known as dimethylglyoxime (dmg). It is a classic reagent for the analysis of NP, the green aqueous solution of metal ions transforming into a vibrantly red precipitate of Ni(dmg)2 complex it is one of the stars of the show in Ponikvar and Liebman s analytical chemistry chapter in the current volume. Here the stereochemistry is well-established and well-known—both OH groups are found on the same side as their adjacent CH3 group on the butanedione backbone. There have been several measurements of the enthalpy of formation of this species for which we take the one associated with this inorganic analytical chemistry application, i.e. with diverse metal complexes and chelates . 

Light Absorption Spectrometry Light absorption spectrometry (molecular absorption) (LAS) has several names, and includes techniques such as UV/VIS (visible) spectrometry, colorimetry, flame molecular absorption, reflectance spectrometry, turbidimetry, nephelometry, ring oven technique, ion test paper and spot tests. Its colorful history and principles may be found in the older, classical books on analytical chemistry. Upor et al. (1985) have an entire volume on photometric methods in inorganic trace analysis in the respected Comprehensive Analytical Chemistry series covering interference separation and analyte concentration, preparation of samples, factors... 

It must be emphasized that the study of classical qualitative inorganic analysis is invaluable for any intending chemist, as this is where he/she first comes across and handles materials which are discussed in the traditional courses of inorganic chemistry. After a few weeks spent in the qualitative analytical laboratory the young chemists become famiUar with solids, liquids, gases, acids, bases, salts - the bread and butter of every chemist s knowledge and skills. 

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