Features of X‐ray fluorescence determination of rock‐forming elements in powder samples of peat sediments

2021 ◽  
Author(s):  
Alena Amosova ◽  
Victor Chubarov ◽  
Alexandr Finkelshtein
Keyword(s):  
X Ray ◽  
Fluorescence Determination ◽  
Powder Samples

Energy dispersive X‐ray fluorescence determination of Fe in solid powder samples: A quality improvement perspective

2019 ◽  
Vol 48 (3) ◽  
pp. 208-217
Author(s):  
Trupti A. Chavan ◽  
Nicy Ajith ◽  
Remya Devi Periyamana Sankaran nampoothiri ◽  
Kallola Kumar Swain
Keyword(s):  
Quality Improvement ◽  
Energy Dispersive ◽  
X Ray ◽  
Fluorescence Determination ◽  
Powder Samples

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».

X-Ray Fluorescence Determination of Ore Elements in Ferromanganese Formations

2020 ◽  
Vol 56 (14) ◽  
pp. 1423-1430
Author(s):  
V. M. Chubarov ◽  
A. A. Amosova ◽  
A. L. Finkelshtein
Keyword(s):  
X Ray ◽  
Fluorescence Determination

Determination of crystallinity of Chinese handmade papers by means of X-ray diffraction

2020 ◽  
Vol 41 (2) ◽  
pp. 69-86
Author(s):  
Peng Liu ◽  
Hongbin Zhang ◽  
Sinong Wang ◽  
Hui Yu ◽  
Bingjie Lu ◽  
...  
Keyword(s):  
Negative Influence ◽  
X Ray Diffraction ◽  
Cross Sectional ◽  
X Ray ◽  
Eulaliopsis Binata ◽  
Different Types ◽  
Powder Samples ◽  
Xrd Patterns ◽  
Xrd Method

AbstractThe crystallinity indices (CrI) of Chinese handmade papers were investigated using the X-ray diffraction (XRD) method. Four Chinese handmade papers, Yingchun, Zhuma, Yuanshu and Longxucao papers were used as model substrates of mulberry bark, ramie, bamboo and Eulaliopsis binata papers, respectively. Two forms of the paper samples, paper sheets and their comminuted powders, were used in this study. The results showed that their XRD patterns belong to the cellulose-I type and Iβ dominates the cellulose microstructure of these paper samples. Moreover, it was found that the microstructures and CrIs of cellulose of these papers were changed by the grinding treatment. This work suggested that the sheet form of the handmade papers is suitable to determine CrI by XRD, despite the contribution of non-cellulosic components in the papers. The order of CrIs for these paper sheet samples was Yingchun, Zhuma, Longxucao and Yuanshu papers. Besides CrIs, differences in cross-sectional areas of the crystalline zone of cellulose can be used for comparing different types of handmade papers. It was also found that the CrIs and crystallite size of paper cellulose varied between the sheet samples and the powder samples, illustrating that the pulverisation has a negative influence on the microstructure of the handmade papers.

Total reflection X-ray Fluorescence determination of interfering elements rubidium and uranium by profile fitting

2018 ◽  
Vol 144 ◽  
pp. 87-91 ◽  
Author(s):  
Sangita Dhara ◽  
Ajay Khooha ◽  
Ajit Kumar Singh ◽  
M.K. Tiwari ◽  
N.L. Misra
Keyword(s):  
Total Reflection ◽  
X Ray ◽  
Fluorescence Determination ◽  
Profile Fitting

Rapid X-Ray Fluorescence Determination of Sulfur in Mineralized Rocks from the Bingham Mining District, Utah

1970 ◽  
Vol 24 (4) ◽  
pp. 426-428 ◽  
Author(s):  
Brent P. Fabbi ◽  
William J. Moore
Keyword(s):  
Mining District ◽  
Total Sulfur ◽  
Ground Sample ◽  
X Ray ◽  
Incomplete Oxidation ◽  
Fluorescence Determination

Determination of total sulfur by x-ray fluorescence eliminates problems of incomplete oxidation of sulfur or coprecipitation often encountered in gravimetric analyses. Durable pellets are prepared from finely ground sample powders mixed with chromatographic cellulose. X-ray fluorescence total sulfur values compare well with gravimetric sulfur values.

An X-ray Fluorescence Determination of Platinum and Rhodium in Autocatalysts on a Ceramic Base

2013 ◽  
Vol 56 (9) ◽  
pp. 1088-1091 ◽  
Author(s):  
Yu. V. Antonova ◽  
A. V. Zablotskii ◽  
O. I. Lyamina ◽  
Yu. A. Karpov ◽  
A. Yu. Kuzin ◽  
...  
Keyword(s):  
X Ray ◽  
Fluorescence Determination ◽  
Ceramic Base
Sign in / Sign up

Export Citation Format

Share Document