Flow field-flow fractionation and single particle inductively coupled plasma mass spectrometry as a powerful tool for tracking and understanding the sensing mechanism of Ag-Au bimetallic nanoparticles toward cobalt ions

被引：1

作者：

Maknun, Luluil ^{[1
,2
,4
]}

Sumranjit, Jitapa ^{[3
]}

Wutikhun, Tuksadon ^{[3
]}

Lobinski, Ryszard ^{[4
,5
]}

Szpunar, Joanna ^{[4
]}

Siripinyanond, Atitaya ^{[1
,2
]}

机构：

[1] Mahidol Univ, Dept Chem, Rama 6 Rd, Bangkok 10400, Thailand

[2] Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Rama 6 Rd, Bangkok 10400, Thailand

[3] Natl Sci & Technol Dev Agcy, Natl Nanotechnol Ctr, 111 Phahonyothin Rd, Klongluang 12120, Pathumthani, Thailand

[4] Univ Pau, Inst Analyt & Phys Chem Environm & Mat IPREM UMR52, CNRS, F-64053 Pau, France

[5] Warsaw Univ Technol, Fac Chem, Analyt Chem, Ul Noakowskiego 3, PL-00664 Warsaw, Poland

来源：

ANALYTICA CHIMICA ACTA | 2024年 / 1301卷

关键词：

Bimetallic nanoparticles; Single -particle ICP-MS; Field -flow fractionation; Colorimetric sensor; GOLD NANOPARTICLES; SIZE; ALLOY;

D O I：

10.1016/j.aca.2024.342485

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Background: Ag - Au bimetallic nanoparticles (BNPs), synthesized by using citrate reduction of Ag and Au ions, were used as sensor for detection of Co 2 + . In order to optimize sensing performance, it is necessary to control the particle size and size distribution of the original Ag - Au BNPs. Therefore, analytical methods based on the use of single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) and flow -field flow fractionation (FlFFF)-ICP-MS were developed to track the signal of Ag and Au in bimetallic nanoparticles at each step of the procedure: BNP synthesis, aggregation and sensing in order to understand the sensing mechanism. To better understand colorimetric sensing of Co 2 + using Ag - Au BNPs, various solution mixtures were analyzed by using SP-ICP-MS and FlFFF-ICP-MS.

引用

页数：10

共 22 条

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