纳米颗粒跟踪分析仪用于二氧化钛纳米颗粒分散及检测

引用本文: 王静如, 巢静波, 陆达伟, 李秀城. 纳米颗粒跟踪分析仪用于二氧化钛纳米颗粒分散及检测[J]. 分析化学, 2021, 49(4): 538-545. doi: 10.19756/j.issn.0253-3820.211015 shu

Citation: WANG Jing-Ru, CHAO Jing-Bo, LU Da-Wei, LI Xiu-Cheng. Dispersion and Detection of Titanium Dioxide Nanoparticles Based on Nanoparticle Tracking Analysis[J]. Chinese Journal of Analytical Chemistry, 2021, 49(4): 538-545. doi: 10.19756/j.issn.0253-3820.211015 shu

纳米颗粒跟踪分析仪用于二氧化钛纳米颗粒分散及检测

王静如 ^1, ,
巢静波 ^{1,
,} ,
陆达伟 ^2, ,
李秀城 ^1,

1.
中国计量科学研究院化学计量与分析科学研究所, 北京 100029;
2.
中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室, 北京 100085

通讯作者: 巢静波,E-mail:chaojb@nim.ac.cn

基金项目:
国家重点研发计划（No.2017YFF0205801）和中国计量科学研究院基本科研业务费项目（No.21-AKYS1609）资助。

摘要: 以纳米颗粒跟踪分析仪为检测手段，建立了二氧化钛（TiO₂）纳米颗粒分散和检测的方法，考察了分散剂种类、超声方式、超声时间、超声温度、分散试剂浓度、pH值对TiO₂分散的影响，以及本分散方法对于一般商品TiO₂的通用性。采用NTA测定粒径和颗粒数量浓度，对检测过程中稀释试剂浓度、稀释倍数等检测条件进行了优化，颗粒数量浓度、粒径检测结果分别采用单颗粒电感耦合等离子体质谱和纳米粒度电位仪进行验证，偏差分别为±10%和±5%。以确定的分散及检测方法对样品进行长期稳定性考察，稳定时间可达1个月，可用于基础研究及相关检测方法开发。

关键词:

English

Dispersion and Detection of Titanium Dioxide Nanoparticles Based on Nanoparticle Tracking Analysis

1.
Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100029, China;
2.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Corresponding author: CHAO Jing-Bo, chaojb@nim.ac.cn

Received Date: 07 January 2021
Revised Date: 19 February 2021
Fund Project:
Supported by the National Key Research and Development Project (No.2017YFF0205801) and the National Institute of Metrology Fundamental Research Program (No.21-AKYS1609).

Abstract: Based on nanoparticle tracking analysis (NTA) techinque, a dispersion and detection method for titanium dioxide nanoparticles was developed. Influencing parameters on dispersion such as reagent type, ultrasonic method, ultrasonic time, ultrasonic temperature, dispersion reagent concentration and pH value were investigated. The dispersion method had good universality for commercial titanium dioxide nanoparticles. NTA was used to measure particle size and particle number concentration, and the dilution reagent concentration and dilution factor during the detection process were optimized. The results of particle number concentration and size using NTA by the established dispersion method was verified using single particle-inductively coupled plasma-mass spectrometry (SP-ICPMS) and dynamic light scattering (DLS) techniques, and the deviations were ±10% and ±5%, respectively. By using the developed dispersion and detection methods, the sample could maintain stable up to over a month, which coud be used for the development of basic research and related detection methods.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

纳米颗粒跟踪分析仪用于二氧化钛纳米颗粒分散及检测

通讯作者: 巢静波,E-mail:chaojb@nim.ac.cn

English

Dispersion and Detection of Titanium Dioxide Nanoparticles Based on Nanoparticle Tracking Analysis

Corresponding author: CHAO Jing-Bo, chaojb@nim.ac.cn

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

纳米颗粒跟踪分析仪用于二氧化钛纳米颗粒分散及检测

通讯作者: 巢静波,E-mail:chaojb@nim.ac.cn

English

Dispersion and Detection of Titanium Dioxide Nanoparticles Based on Nanoparticle Tracking Analysis

Corresponding author: CHAO Jing-Bo, chaojb@nim.ac.cn

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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