X-Ray Fluorescence Determination of Trace Elements in 6 B.C.S. and 5 P.R.E. Reference Materials

1983 ◽  
Vol 7 (2) ◽  
pp. 301-303 ◽  
Author(s):  
Kenneth PALMER ◽  
Paul C. KENNEDY ◽  
Barry ROSER
Keyword(s):  
Trace Elements ◽  
Reference Materials ◽  
X Ray ◽  
Fluorescence Determination

Partial least squares X-ray fluorescence determination of trace elements in sediments from the estuary of Nerbioi-Ibaizabal River

Talanta ◽  
2010 ◽  
Vol 82 (4) ◽  
pp. 1254-1260 ◽  
Author(s):  
Javier Moros ◽  
Ainara Gredilla ◽  
Silvia Fdez-Ortiz de Vallejuelo ◽  
Alberto de Diego ◽  
Juan Manuel Madariaga ◽  
...  
Keyword(s):  
Trace Elements ◽  
Least Squares ◽  
Partial Least Squares ◽  
X Ray ◽  
Fluorescence Determination

REFERENCE MATERIALS FOR MICRO-ANALYTICAL NUCLEAR TECHNIQUES

1992 ◽  
Vol 02 (04) ◽  
pp. 651-664 ◽  
Author(s):  
V. Valkovic ◽  
R. Zeisler ◽  
G. Bernasconi ◽  
P.R. Danesi
Keyword(s):  
Trace Elements ◽  
Reference Materials ◽  
Analytical Techniques ◽  
X Ray ◽  
Ion Probe ◽  
Low Levels ◽  
Analytical Procedures ◽  
High Degree ◽  
Selection Of

Direct application of many existing reference materials in micro-analytical procedures such as energy dispersive x-ray fluorescence (EDXRF), particle induced x-ray emission spectroscopy (PIXE) and ion probe techniques for the determination of trace elements is often impossible or difficult because: 1) other constituents present in large amounts interfere with the determination; 2) trace components are not sufficiently homogeneously distributed in the sample. Therefore specific natural-matrix reference materials containing very low levels of trace elements and having high degree of homogeneity are required for many micro-analytical procedures. In this report, selection of the types of environmental and biological materials which are suitable for micro-analytical techniques will be discussed.

X-ray fluorescence determination of zinc sulfate in acidic zinc plating electrolyte

2020 ◽  
Vol 86 (10) ◽  
pp. 18-22
Author(s):  
K. N. Vdovin ◽  
K. G. Pivovarova ◽  
N. A. Feoktistov ◽  
T. B. Ponamareva
Keyword(s):  
Zinc Sulfate ◽  
Zinc Coating ◽  
Electrolyte Composition ◽  
Complexometric Titration ◽  
X Ray ◽  
Fluorescence Determination ◽  
Zinc Plating ◽  
Zinc Determination

Zinc sulfate is the main component in the composition of the acidic zinc plating electrolyte. Deviation in the electrolyte composition from the optimum content leads to destabilization of the electrolysis process and deteriorate the quality of the resulting zinc coating. The proper quality of a zinc coating obtained by galvanic deposition can be ensured only with timely monitoring and adjustment of the electrolyte composition. A technique of X-ray fluorescence determination of zinc (in terms of zinc sulfate) in an acidic zinc plating electrolyte is proposed. The study was carried out using an ARL Quant’X energy dispersive spectrometer (Thermo Fisher Scientific, USA) with a semiconductor silicon-lithium detector. The features of the spectrometer design are presented. The optimal parameters of excitation and detection of zinc radiation were specified when the electrolyte sample was diluted 1:1000. The ZnKα1 line was used as an analytical line. The plotted calibration graph is linear, the correlation coefficient being 0.999234. The results of zinc determination according to the developed method were compared with the data of the reference method of complexometric titration to prove the reliability of the procedure. The results are characterized by good convergence and accuracy. The proposed method of X-ray fluorescence zinc determination in a zinc plating electrolyte equals complexometric titration in the limiting capabilities and even exceeds the latter in terms of the simplicity of sample preparation and rapidity. The developed method of X-ray fluorescence determination of zinc is implemented in analysis of the electrolyte used in the continuous galvanizing unit at «METSERVIS LLC».

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