Method development for determination of brominated flame retardants in high-impact polystyrene using X-ray fluorescence spectrometry

Name: Polwat Singhasemanont

Organization : Chulalongkorn University. Faculty of Science

Email : taopaulwat@yahoo.com

Name: Apichat Imyim

Organization : Chulalongkorn University. Faculty of Science

ThaSH: Bromine compounds

ThaSH: Nanoparticles

ThaSH: X-ray spectroscopy

ThaSH: Fluorescence spectroscopy

Abstract: An accurate qualitative of bromine has been influencing on flame retardant properties of polymeric materials. Analytical techniques for determining bromine can be performed by ion-chromatography and inductively coupled plasma optical emission spectrometry, etc. However, most of the methods require complicated sample preparation and time-consuming. A wavelength dispersive x-ray fluorescence (WDXRF) method can solve these problems but requires suitable standards or Reference materials (RM). The purpose of this study was to develop a feasible method for the determination of bromine content in high-impact polystyrene (HIPS) using WDXRF. The calibration of primary RM and secondary RM (brominated flame retardant additive) were prepared using an internal mixer ranging from 1 to 13 wt percent of bromine in HIPS. WDXRF calibration curves of bromine showed a good linearity (R2 >0.999). The proposed method was validated with a quality control composing 10 wt percent of bromine and the result showed the percentage relative error was 0.43 percent. The limit of detection (LOD) was 0.0002 wt percent of bromine. The calibrating disk had a homogenous bromine distribution. The stability test was also evaluated. No significant decrease of bromine intensity standard disks occurred in 5 months. This method was suitable for fast and accurate quantification of brominated flame retardants in HIPS materials.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2020

Modified: 2023-12-01

Issued: 2023-12-01

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BibliograpyCitation : In the Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn in association, Thammasat University Faculty of Science and Technology. The Pure and Applied Chemistry International Conference 2020 (PACCON 2020) (AC47-51). Bangkok : Thammasat University

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