Preparation of magnetic nanocomposites modified for preconcentration of bismuth and its determination by FAAS
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
TCPCO02_013
تاریخ نمایه سازی: 22 مهر 1394
Abstract:
Water and soil pollution with heavy metals pose a threat to the environment and human health. Find an effective way to refine these metals from water is very important. In this study, the removal of bismuth from aqueous solution using modified magnetite nanocomposites was studied. Magnetite nanoparticles synthesized and modified its properties were measured using FT-IR spectroscopy. The effect of various parameters, such as pH, type and concentration of acid, effect of the adsorbent amount and effect of ultrasonication time were optimized. As a result, it is hoped to use the method for extraction and preconcentration of metal ions in real samples used effectively. The proposed method permitted a large enrichment factor (about 100). The relative standard deviation of the method was ±1.75 % (for ten replicate determination of 2.5 μg mL-1 of Bi(III)) and the limit of detection was 3.8 ng mL-1. The results showed that Fe3O4@AAAPTS@SiO2 adsorbent could be employed as an effective material for preconcentration and their determination of Bi from aqueous solutions.
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Authors
Matin Naghizadeh
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran
Mohammad Ali Taher
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
Firouzeh Hassani Moghaddam
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran
Maryam Fayazi
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran
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