Element analyte

The existing models for emitting x-ray fluorescence intensity of elemental analytical lines from heterogeneous samples are limited in practical applications, because in most publications the relations between the fluorescence intensity of analytical lines elements and the properties of powder materials were not completely studied. For example, particles distribution of components within narrow layer of irradiator which emitted x-ray fluorescence intensity of elements might be in disagreement with particles distribution of components within whole sample. 

Element Analyt- ical Line Wavelength, A Crystal Slit Width, in. Path Type of Detector Detector Path Length, cm Detector Window"... 

The foregoing quotation points out that the publication of routine elemental analytical combustion results can serve to separate Stable compds from those that expld before pyrolyzing... 

Muntau H (1980) Measurement quality improvements by application of reference materials. In Brattee P and Schramel P, eds. Trace Element Analytical Chemistry in Medicine and Biol-ogy, PP707-726. Walter de Gruyter Co Berlin New York. 

KuRFiiRST U, Grobecker KH, Stoeppler M (1984) Homogeneity studies in biological reference and control materials with solid sampling and direct Zeeman-AAS. In Schramel P, Bratter P, eds. Trace Element Analytical Chemistry in Medicine and Biology, Vol. 3, pp 591-601. de Gruyter, Berlin. 

Element analytical pretreatment 8.3 Analytical atomic spectrometry 605... 

As shown in Table 8.17, there is considerable overlap of capabilities between element analytical methods. A general understanding of the basic principles of the various techniques is necessary for an informed choice of the best technique. The atomic spectrometry techniques used most are ETA-AAS, ICP-AES and ICP-MS. 

Table 8.36 Main element analytical solid sampling techniques and typical sample mass...

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