Study of factors affecting the results of natural water analyses by total reflection X‐ray fluorescence

Abstract

The study aims to choose the conditions for the direct analysis of different types of natural water samples by total reflection X-Ray fluorescence spectrometry (TXRF). The effect of some factors on TXRF results was studied such as the surface density of dried water residue on the sample carrier, the dilution ratio of high-mineralized samples with ultrapure water and the solution of the detergent Triton X-100, the salt contents, the internal standard concentration, and repeated pipetting of an aliquot of fresh water. The influence of self-absorption phenomena on quantification results was demonstrated by using brine samples. The TXRF results for natural waters of varying salinity (brines, fresh waters, and ground waters) and model solutions are presented. For a number of analytes, the data obtained by TXRF were compared to those obtained by 'wet' chemistry and inductively coupled plasma mass spectrometry.

2014 Atomic Spectrometry Update – a review of advances in X-ray fluorescence spectrometry

“…The authors claimed that this technique was well suited for the production of standards for external calibration for wafer TXRF spectrometry, but moreover, ideal for samples for the quantication of aerosols collected in special patterns by an impactor on the reector. Pashkova et al 74 conrmed TXRF an ideal technique for liquid sample analysis, in particular water. Some factors inuencing the TXRF results were considered among them: surface density of dried water residue on the carrier, the dilution ratio of high mineralised samples with ultrapure water and the solution of the detergent TRITON X-100, the salt contents, the internal standard concentration and repeated pipetting of fresh water.…”

Intelligent Simultaneous Quantitative Online Analysis of Environmental Trace Heavy Metals with Total-Reflection X-Ray Fluorescence

“…A summary of water, air dust, organ tissue and plant material analysis is shown in [ 27 ]. Borgese et al ran the round-robin test of water samples [ 28 ], while Pashkova et al discussed the effect of factors such as the surface density of dried water residue on the sample carrier, the dilution ratio of high-mineralized samples with ultrapure water, the salt content, and the internal standard concentration, in water sample analysis [ 29 ]. Environmental and food samples have been especially widely tested, including rainwater [ 30 ], tree-rings [ 31 ], fine roots of Scots pine [ 32 ], industrial wastewater [ 33 ], water samples during deionized water production [ 34 ], metallurgical slag [ 35 ], heavy metal contaminated soils and sediments [ 36 ], Langmuir monolayers on water surface [ 37 ], Madeira wine [ 38 ], and honey from different regions [ 39 ].…”

Application of Total-Reflection X-Ray Fluorescence Spectrometry (Txrf) to Geological Objects: Experience of the TXRF Laboratory, Center for Geodynamics and Geochronology

“…The S2 PICOFOX (Bruker Nano GmbH, Germany), a benchtop spectrometer, has been used in the TXRF laboratory of the Centre for Geodynamics and Geo chronology since 2009. Initially, the TXRF laboratory was specialized in the analysis of liquid samples as water [Pashkova, Revenko, 2013a, 2013bPashkova et al, 2013], brines [Pashkova, Revenko, 2015;Pashkova et al, 2013], milk [Smagunova, Pashkova, 2013;Pashkova et al, 2018b], tea [Maltsev et al, 2019a[Maltsev et al, , 2021a, and beverages [Maltsev et al, 2019b[Maltsev et al, , 2022. Nowadays we also use TXRF for different solid samples with a complex mineral matrix.…”