Simple Analytical Method of Bromine in Fruits and Grain Products with Wavelength Dispersive X-Ray Fluorescence Spectrometer

Abstract

A simple analytical method was developed for the determination of total bromine in fruits and grain products by means of wavelength dispersive X-ray fluorescence spectrometry (WDXRF).Five gram samples of fresh fruits, frozen fruits, dried fruits and grain products were extracted with distilled water twice and diluted to 25 mL with distilled water. The sample solution (0.5 mL) was dripped onto the filter paper, which was dried and analyzed by WDXRF. The working curve was linear in the range of 0 to 10 mg/mL. Recoveries at the level of 5 mg/g were 76ῌ104̮. The detection limit was 0.5 mg/g and the determination limit was 1.5 mg/g in foods. Compared to the GC-ECD method, this method gave equivalent results for fresh fruits, frozen fruits and grain products. In addition, some dried fruits, in which a slightly high level was detected, gave almost the same results with the GC-ECD method. Therefore, this method is considered to be available as an alternative to the GC-ECD method.

Atomic spectrometry update-X-ray fluorescence spectrometry

“…This proposed method was compared with the standard spectrophotometric method (PN-ISO 13730, 1999) for the determination of total phosphorus confirming that this new approach offered a satisfactory alternative. Tateishi et al 151 published a simple analytical method for the determination of bromine in fruits and grain by WDXRF. Five gram samples of fresh, dried or frozen fruit and grain products were extracted twice with distilled water and diluted to 25 mL with distilled water.…”

Qualitative and Semiquantitative Determination of Bromine in Hybrid Hydroxyurethanes-Poly(dimethylsiloxane) Films Containing Phosphotungstates ([PW<sub>12</sub>O<sub>40</sub>]<sup>3-</sup>)

“…composition and properties. Different modes of XRF (EDXRF, WDXRF, TXRF, µXRF) constitutes a very useful method of analysis in order to determinate traces of Bromine [27][28][29][30][31][32][33][34][35][36]. [27,29].…”

“…[27,29]. Wavelength Dispersive X-ray Fluorescence (WDXRF) analyses has been performed in order to determinate Bromine in different matrices [30,31]. Pashkova et al applied Wavelength Dispersive X-ray Fluorescence (WDXRF) and Total Reflection X-ray Fluorescence (TXRF) methods in combination for the determination of Bromine in sediment matrices [32].…”