The investigation of triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite nanocomposites for Cr (VI) detection

Meihong Zhan; Weimin Gao; William Nguyen; Hongmei Yu; Eric Amador; Wei Chen

doi:10.1016/j.mtadv.2022.100268

The investigation of triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite nanocomposites for Cr (VI) detection

Meihong Zhan, Weimin Gao, William Nguyen, Hongmei Yu^*, Eric Amador, Wei Chen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite (HAP) composites were prepared and employed in a micro-column system for solid phase extraction of Cr (VI) with its determination by flame atomic absorption spectrometry (FAAS). It is found that the triadic silica-supported nano-HAP composites can efficiently adsorb Cr (VI) at pH 4.0–6.0, but absorb almost no Cr (III). The detection has a good linear range of 0.3–300 μg L⁻¹, a detection limit of 0.09 μg L⁻¹ (3σ, n = 11) and a precision of 1.3% (20 μg L⁻¹, n = 11) on Cr (VI). The adsorption mechanisms are mainly electrostatic attraction and the channel effect. This method was successfully applied to the determination of chromium contents in cereal and water samples with recoveries of 99.5–109.8%.

Original language	English
Article number	100268
Journal	Materials Today Advances
Volume	15
DOIs	https://doi.org/10.1016/j.mtadv.2022.100268
Publication status	Published - Aug 2022
Externally published	Yes

Keywords

Cr (VI)
Flame atomic absorption spectrometry
Nano-hydroxyapatite composites
Preconcentration
Solid phase extraction

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10.1016/j.mtadv.2022.100268

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@article{e29c89c8fdac4871860fcfa34fcadc0a,

title = "The investigation of triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite nanocomposites for Cr (VI) detection",

abstract = "Triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite (HAP) composites were prepared and employed in a micro-column system for solid phase extraction of Cr (VI) with its determination by flame atomic absorption spectrometry (FAAS). It is found that the triadic silica-supported nano-HAP composites can efficiently adsorb Cr (VI) at pH 4.0–6.0, but absorb almost no Cr (III). The detection has a good linear range of 0.3–300 μg L−1, a detection limit of 0.09 μg L−1 (3σ, n = 11) and a precision of 1.3% (20 μg L−1, n = 11) on Cr (VI). The adsorption mechanisms are mainly electrostatic attraction and the channel effect. This method was successfully applied to the determination of chromium contents in cereal and water samples with recoveries of 99.5–109.8%.",

keywords = "Cr (VI), Flame atomic absorption spectrometry, Nano-hydroxyapatite composites, Preconcentration, Solid phase extraction",

author = "Meihong Zhan and Weimin Gao and William Nguyen and Hongmei Yu and Eric Amador and Wei Chen",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

month = aug,

doi = "10.1016/j.mtadv.2022.100268",

language = "English",

volume = "15",

journal = "Materials Today Advances",

issn = "2590-0498",

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TY - JOUR

T1 - The investigation of triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite nanocomposites for Cr (VI) detection

AU - Zhan, Meihong

AU - Gao, Weimin

AU - Nguyen, William

AU - Yu, Hongmei

AU - Amador, Eric

AU - Chen, Wei

PY - 2022/8

Y1 - 2022/8

N2 - Triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite (HAP) composites were prepared and employed in a micro-column system for solid phase extraction of Cr (VI) with its determination by flame atomic absorption spectrometry (FAAS). It is found that the triadic silica-supported nano-HAP composites can efficiently adsorb Cr (VI) at pH 4.0–6.0, but absorb almost no Cr (III). The detection has a good linear range of 0.3–300 μg L−1, a detection limit of 0.09 μg L−1 (3σ, n = 11) and a precision of 1.3% (20 μg L−1, n = 11) on Cr (VI). The adsorption mechanisms are mainly electrostatic attraction and the channel effect. This method was successfully applied to the determination of chromium contents in cereal and water samples with recoveries of 99.5–109.8%.

AB - Triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite (HAP) composites were prepared and employed in a micro-column system for solid phase extraction of Cr (VI) with its determination by flame atomic absorption spectrometry (FAAS). It is found that the triadic silica-supported nano-HAP composites can efficiently adsorb Cr (VI) at pH 4.0–6.0, but absorb almost no Cr (III). The detection has a good linear range of 0.3–300 μg L−1, a detection limit of 0.09 μg L−1 (3σ, n = 11) and a precision of 1.3% (20 μg L−1, n = 11) on Cr (VI). The adsorption mechanisms are mainly electrostatic attraction and the channel effect. This method was successfully applied to the determination of chromium contents in cereal and water samples with recoveries of 99.5–109.8%.

KW - Cr (VI)

KW - Flame atomic absorption spectrometry

KW - Nano-hydroxyapatite composites

KW - Preconcentration

KW - Solid phase extraction

UR - http://www.scopus.com/inward/record.url?scp=85132532385&partnerID=8YFLogxK

U2 - 10.1016/j.mtadv.2022.100268

DO - 10.1016/j.mtadv.2022.100268

M3 - Article

AN - SCOPUS:85132532385

SN - 2590-0498

VL - 15

JO - Materials Today Advances

JF - Materials Today Advances

M1 - 100268

ER -

The investigation of triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite nanocomposites for Cr (VI) detection

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Keywords

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