Simultaneous determination of chlorine and sulfur in geochemical reference samples by wavelength dispersive X-ray fluorescence spectrometry

2020 ◽  
Vol 44 (26) ◽  
pp. 11224-11230 ◽  
Author(s):  
Wen-Zhi Zhao ◽  
Bing Lu ◽  
Sheng-Nan Lv ◽  
Chuan-Fang Zhou ◽  
Yuan Yang
Keyword(s):  
Spectral Line ◽  
Simultaneous Determination ◽  
Matrix Effects ◽  
Fluorescence Spectrometry ◽  
Sulfur Species ◽  
X Ray ◽  
Inorganic Sulfur ◽  
Reference Samples

Study on spectral line shifts and matrix effects of different inorganic sulfur species and geochemical reference samples by WD-XRF.

Simultaneous Determination of Low Parts-per-Billion Level Pb and as in Waters Using Energy-Dispersive X-Ray Fluorescence Spectrometry

2001 ◽  
Vol 55 (3) ◽  
pp. 298-306 ◽  
Author(s):  
Terrance D. Hettipathirana ◽  
Lester H. Smith ◽  
Keith Norrish
Keyword(s):  
Simultaneous Determination ◽  
Matrix Effects ◽  
Certified Reference Materials ◽  
Ferric Hydroxide ◽  
Standard Addition ◽  
Energy Dispersive ◽  
Fluorescence Spectrometry ◽  
Simple Method ◽  
X Ray

A simple method is described for the simultaneous determination of low parts-per-billion levels of As and Pb in waters. The method is based on the preconcentration of analytes by adsorbing them onto hydrous ferric hydroxide (HFO) impregnated into the 13 mm diameter area at the center of 32 mm diameter circular disks cut from Whatman filter papers. The adsorbed analytes are determined by using thin-layer energy-dispersive X-ray fluorescence spectrometry. The X-ray intensity of As and Pb adsorbed onto HFO is linearly proportional to the concentration up to 80 μg/L. The precision of the method is ∼ 0.5–5%, and the method detection limit for Pb and As in seawater is 0.63 and 0.21 μg/L, respectively. The method was validated by analyzing the certified reference materials SLRS-3 (riverine water), CASS-4 (nearshore seawater), and NASS-5 (offshore seawater) for As. The adsorption characteristics of Pb, As(III), As(V), Se(IV), Se(VI), and Hg onto the HFO impregnated disks, the interspecies adsorption effects, and the use of the standard addition method to compensate for matrix effects are also presented.

Simultaneous determination of rare earths by x-ray fluorescence spectrometry using a fundamental parameters method

1993 ◽  
Vol 22 (5) ◽  
pp. 362-367 ◽  
Author(s):  
L. M. Marcó Parra ◽  
E. D. Greaves ◽  
J. L. Paz ◽  
L. Sajo-Bohus
Keyword(s):  
Simultaneous Determination ◽  
Rare Earths ◽  
Fluorescence Spectrometry ◽  
X Ray ◽  
Fundamental Parameters

Application of X-Ray-Fluorescence Spectrometry to the Analysis of Ta-Nb-Sn Slags and Associated By-Products

1987 ◽  
Vol 41 (3) ◽  
pp. 509-512 ◽  
Author(s):  
A. M. E. Balaes ◽  
K. Dixon ◽  
G. J. Wall
Keyword(s):  
Computer Program ◽  
Analytical Procedure ◽  
Influence Factor ◽  
Matrix Effects ◽  
Fluorescence Spectrometry ◽  
Solid Materials ◽  
X Ray ◽  
Residual Matrix ◽  
By Products

This paper describes the development of an accurate, precise, and rapid analytical procedure using x-ray-fluorescence spectrometry for the determination of Nb, Ta, Mg, Al, Si, P, K, Ca, Ti, Mn, Fe, Zr, and Sn in a wide variety of materials resulting from the processing of Ta-Nb-Sn slags to produce Ta-Nb oxides. The method involves evaporation of all the liquids to dryness, a 1:8 fusion of the solid materials with a flux consisting of Na-Li tetraborate and Na2CO3, and the addition of La oxide as a heavy absorber. With the use of a computer program, residual matrix effects are corrected for by influence-factor calculations.

Simultaneous Determination of 36 Elements by X-Ray Fluorescence Spectrometry as a Prospecting Tool

1982 ◽  
Vol 26 ◽  
pp. 443-450
Author(s):  
Clive E. Feather ◽  
Fritz C. Baumgartner
Keyword(s):  
Simultaneous Determination ◽  
Spectral Lines ◽  
Analysis Time ◽  
Fluorescence Spectrometry ◽  
X Ray ◽  
Geochemical Prospecting ◽  
Dispersive Channels ◽  
Ore Mineralization ◽  
Practical Limit

In regional reconnaisance geochemical prospecting, it is desirable to determine as many elements as possible, in order to provide a comprehensive cover for the detection of most types of ore mineralization. Multi-element simultaneous instruments are ideally suited to this task, but the maximum number of wavelength dispersive channels (monochromators) which may be fitted to any one of the commercially available X-ray spectrometers is approximately thirty. Because some of these channels are required for the measurement of background, the practical limit for spectral lines is about twenty-five. Additional elements may be determined by inclusion of a scanning channel, but its sequential operation increases the analysis time per sample.

A simple and rapid method for simultaneous pre-concentration of eight trace-heavy-metals in water using 1-(2-pyridylazo)-2-naphthol and yttrium for X-ray fluorescence spectrometry

2015 ◽  
Vol 7 (16) ◽  
pp. 6545-6551 ◽  
Author(s):  
Shigeru Taguchi ◽  
Miyabi Asaoka ◽  
Eiko Hirokami ◽  
Noriko Hata ◽  
Hideki Kuramitz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Simultaneous Determination ◽  
Rapid Method ◽  
Energy Dispersive ◽  
Fluorescence Spectrometry ◽  
X Ray ◽  
Trace Heavy Metals ◽  
Concentration Technique

A simple and rapid pre-concentration technique for the simultaneous determination of eight trace heavy metals in water by energy-dispersive X-ray fluorescence spectrometry.

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