METHODS AND OBJECTS OF CHEMICAL ANALYSIS

ISSN title: "Metody i obʺekty himičeskogo analiza"

An international journal devoted to all aspects of Analytical chemistry

ISSN 2413-6166 (Online), ISSN 1991-0290 (Print)

Ukr | En

The Х,ray fluorescence (XRF) study provided distribution of Na, Mg, Al, Si, P, S, Cl, K, Ca, Mn, Fe, Ni, Cu, Zn, Rb, Sr and Zr in certified reference material of composition of Baikal perch muscle tissues BOk,2 (CRM № 9055,2008) and long,term stability of emitters under x,ray effect. Conditions of fish muscle tissues preparation for XRF were recommended. The influence of instrument procedure combination as well as action of analytical mass used for analysis upon spectral line intensi,ties and, as a result, the XRF data precision were studied. The relative standard deviation values of in,tensities (RSD) were reported to vary. They characterize total intra laboratory XRF random error S r,tot, depending on ordinal number of emitter x,ray irradiation. It is stated that each element of CRM BOk,2 in,dividually responds to the effect of X,ray stream, vacuum and heightened temperature, set by the con,structive features of spectrometer. The given data demonstrated that the use of nondestructive XRF method ideally suits for monitoring aqueous ecosystems, as well as perspectives of its using as the method sensitive to changing hydro chemical background elemental composition. The XRF method has not been so far applied for solving similar problems.

Keywords: XRF, fish muscle tissues, element distribution

Publisher:Taras Shevchenko National University, Kiev Ukraine

(Analytical chemistry department at Taras Shevchenko National University, 64 Vladimirskaya STR., Kiev, 01601 UKRAINE)
analysis@univ.kiev.ua, www.univ.kiev.ua, +380-44-2393266

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