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Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor

[Image: see text] This study aimed to synthesize dimethylglyoxime (DMG) (N-source)-doped graphene quantum dots (N-GQDs) via simultaneous pyrolysis of citric acid and 1.0% (w/v) DMG. The maximum excitation wavelength (λ(max), ex = 380 nm) of the N-GQD solution (49% quantum yield (QY)) was a red shift...

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Autores principales: Pimsin, Nipaporn, Kongsanan, Niradchada, Keawprom, Chayanee, Sricharoen, Phitchan, Nuengmatcha, Prawit, Oh, Won-Chun, Areerob, Yonrapach, Chanthai, Saksit, Limchoowong, Nunticha
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8209797/
https://www.ncbi.nlm.nih.gov/pubmed/34151061
http://dx.doi.org/10.1021/acsomega.1c00190
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author Pimsin, Nipaporn
Kongsanan, Niradchada
Keawprom, Chayanee
Sricharoen, Phitchan
Nuengmatcha, Prawit
Oh, Won-Chun
Areerob, Yonrapach
Chanthai, Saksit
Limchoowong, Nunticha
author_facet Pimsin, Nipaporn
Kongsanan, Niradchada
Keawprom, Chayanee
Sricharoen, Phitchan
Nuengmatcha, Prawit
Oh, Won-Chun
Areerob, Yonrapach
Chanthai, Saksit
Limchoowong, Nunticha
author_sort Pimsin, Nipaporn
collection PubMed
description [Image: see text] This study aimed to synthesize dimethylglyoxime (DMG) (N-source)-doped graphene quantum dots (N-GQDs) via simultaneous pyrolysis of citric acid and 1.0% (w/v) DMG. The maximum excitation wavelength (λ(max), ex = 380 nm) of the N-GQD solution (49% quantum yield (QY)) was a red shift with respect to that of bare GQDs (λ(max), ex = 365 nm) (46% QY); at the same maximum emission wavelength (λ(max), em = 460 nm), their resonance light scattering (RLS) intensity peak was observed at λ(max), ex/em = 530/533 nm. FTIR, X-ray photoelectron spectroscopy, XRD, energy-dispersive X-ray spectroscopy, and transmission electron microscopy analyses were performed to examine the synthesized materials. The selective and sensitive detection of Ni(2+) using the RLS intensity was performed at 533 nm under the optimum conditions consisting of both 25 mg L(–1) N-GQDs and 2.5 mg L(–1) DMG in the ammonium buffer solution of pH 9.0. The linearity of Ni(2+) was 50.0–200.0 μg L(–1) with a regression line, y = 5.031x – 190.4 (r(2) = 0.9948). The limit of detection (LOD) and the limit of quantitation (LOQ) were determined to be 20.0 and 60.0 μg L(–1), respectively. The method precision expressed as % RSDs was 4.90 for intraday (n = 3 × 3) and 7.65 for interday (n = 5 × 3). This developed method afforded good recoveries of Ni(2+) in a range of 85–108% when spiked with real water samples. Overall, this innovative method illustrated the identification and detection of Ni(2+) as a DMG complex with N-GQDs, and the detection was highly sensitive and selective.
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spelling pubmed-82097972021-06-17 Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor Pimsin, Nipaporn Kongsanan, Niradchada Keawprom, Chayanee Sricharoen, Phitchan Nuengmatcha, Prawit Oh, Won-Chun Areerob, Yonrapach Chanthai, Saksit Limchoowong, Nunticha ACS Omega [Image: see text] This study aimed to synthesize dimethylglyoxime (DMG) (N-source)-doped graphene quantum dots (N-GQDs) via simultaneous pyrolysis of citric acid and 1.0% (w/v) DMG. The maximum excitation wavelength (λ(max), ex = 380 nm) of the N-GQD solution (49% quantum yield (QY)) was a red shift with respect to that of bare GQDs (λ(max), ex = 365 nm) (46% QY); at the same maximum emission wavelength (λ(max), em = 460 nm), their resonance light scattering (RLS) intensity peak was observed at λ(max), ex/em = 530/533 nm. FTIR, X-ray photoelectron spectroscopy, XRD, energy-dispersive X-ray spectroscopy, and transmission electron microscopy analyses were performed to examine the synthesized materials. The selective and sensitive detection of Ni(2+) using the RLS intensity was performed at 533 nm under the optimum conditions consisting of both 25 mg L(–1) N-GQDs and 2.5 mg L(–1) DMG in the ammonium buffer solution of pH 9.0. The linearity of Ni(2+) was 50.0–200.0 μg L(–1) with a regression line, y = 5.031x – 190.4 (r(2) = 0.9948). The limit of detection (LOD) and the limit of quantitation (LOQ) were determined to be 20.0 and 60.0 μg L(–1), respectively. The method precision expressed as % RSDs was 4.90 for intraday (n = 3 × 3) and 7.65 for interday (n = 5 × 3). This developed method afforded good recoveries of Ni(2+) in a range of 85–108% when spiked with real water samples. Overall, this innovative method illustrated the identification and detection of Ni(2+) as a DMG complex with N-GQDs, and the detection was highly sensitive and selective. American Chemical Society 2021-06-02 /pmc/articles/PMC8209797/ /pubmed/34151061 http://dx.doi.org/10.1021/acsomega.1c00190 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Pimsin, Nipaporn
Kongsanan, Niradchada
Keawprom, Chayanee
Sricharoen, Phitchan
Nuengmatcha, Prawit
Oh, Won-Chun
Areerob, Yonrapach
Chanthai, Saksit
Limchoowong, Nunticha
Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor
title Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor
title_full Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor
title_fullStr Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor
title_full_unstemmed Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor
title_short Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor
title_sort ultratrace detection of nickel(ii) ions in water samples using dimethylglyoxime-doped gqds as the induced metal complex nanoparticles by a resonance light scattering sensor
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8209797/
https://www.ncbi.nlm.nih.gov/pubmed/34151061
http://dx.doi.org/10.1021/acsomega.1c00190
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