热提取乳液进样-单颗粒电感耦合等离子体质谱法测定食品包装材料中的纳米银

引用本文: 梁维新, 潘佳钏, 林晨, 郭鹏然. 热提取乳液进样-单颗粒电感耦合等离子体质谱法测定食品包装材料中的纳米银[J]. 分析化学, 2021, 49(9): 1572-1579. doi: 10.19756/j.issn.0253-3820.210463 shu

Citation: LIANG Wei-Xin, PAN Jia-Chuan, LIN Chen, GUO Peng-Ran. Thermal Extraction-emulsion Injection Combining Single Particle-inductively Coupled Plasma-mass Spectrometry for Determination of Sliver Nanoparticles in Food Packaging[J]. Chinese Journal of Analytical Chemistry, 2021, 49(9): 1572-1579. doi: 10.19756/j.issn.0253-3820.210463 shu

热提取乳液进样-单颗粒电感耦合等离子体质谱法测定食品包装材料中的纳米银

广东省科学院测试分析研究所(中国广州分析测试中心), 广东省化学危害应急检测技术重点实验室, 广州 510070

通讯作者: 郭鹏然,E-mail:prguo@fenxi.com.cn

基金项目:
广东省重点研究领域计划项目（No.2019B020211001）和广东省科学院测试分析研究所自筹科研资金项目（No.202005）资助。

摘要: 建立了热提取乳液进样-单颗粒电感耦合等离子体质谱法测定抗菌包装材料中纳米银颗粒（AgNPs）的方法。采用十氢萘在高温条件下破坏聚乙烯高分子链，提取抗菌包装材料中的AgNPs，通过单颗粒电感耦合等离子质谱法（Single particle-inductively coupled plasma mass spectrometry，SP-ICP-MS）测定了AgNPs的质量/颗粒浓度以及粒径分布，考察了方法的最佳提取温度、提取效率和检出限，并应用于实际样品测定。实验结果表明，热提取过程未对AgNPs的粒径分布和颗粒浓度造成影响，薄膜和袋装两种类型的抗菌包装材料的最佳提取温度为150℃，提取效率分别为94.3%和90.3%，方法的粒径检出限为23 nm。实际样品测试结果显示，4种抗菌包装材料的AgNPs含量在0.038~4.884 μg/g之间，AgNPs占总银的比率在0.69%~3.80%之间，平均粒径在35.5~85.1 nm之间。本方法可快速、准确评价食品包装材料中AgNPs含量及粒度分布。

关键词:

English

Thermal Extraction-emulsion Injection Combining Single Particle-inductively Coupled Plasma-mass Spectrometry for Determination of Sliver Nanoparticles in Food Packaging

Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences(China National Analytical Center, Guangzhou), Guangzhou 510070, China

Corresponding author: GUO Peng-Ran, prguo@fenxi.com.cn

Received Date: 25 April 2021
Revised Date: 21 June 2021
Fund Project:
Supported by the Key Research Fields Program of Guangdong Province, China (No.2019B020211001) and the Self-financing Projects of Scientific Research of Institute of Analysis, Guangdong Academy of Sciences, China(No.202005).

Abstract: A method for determination of silver nanoparticles (AgNPs) in antibacterial composite food packaging by thermal extraction-emulsion injection combining single particle-inductively coupled plasma-mass spectrometry (SP-ICP-MS) was developed. The AgNPs were extracted by breaking polyethylene polymer chain using decalin under the conditions of high temperature, and the size distribution, mass and particle concentration of AgNPs were measured by SP-ICP-MS. The method was assessed to obtain the optimal extraction temperature, efficiency and limit of detection, and eventually applied to the determination of actual sample. The results indicated that, the size distribution and particle concentration would not be affected by thermal extraction process, the optimal extraction temperature of two types of antibacterial composite food packaging (film and bags) was 150℃, and the extraction efficiencies were 94.3% and 90.3%, respectively. The limit of detection for particle size was 23 nm. The detection results of actual sample showed the AgNPs contents in 4 types of antibacterial composite food packaging materials were 0.038-4.884 μg/g, the AgNPs ratio and mean size were 0.69%-3.80% and 35.5-85.1 nm, respectively. The proposed method was accurate and rapid for determination of AgNPs in food packaging materials.

Key words:

Food packaging material
/ Sliver nanoparticles
/ Decalin
/ Single particle-inductively coupled plasma-mass spectrometry

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沈阳化工大学材料科学与工程学院沈阳 110142

热提取乳液进样-单颗粒电感耦合等离子体质谱法测定食品包装材料中的纳米银

通讯作者: 郭鹏然,E-mail:prguo@fenxi.com.cn

English

Thermal Extraction-emulsion Injection Combining Single Particle-inductively Coupled Plasma-mass Spectrometry for Determination of Sliver Nanoparticles in Food Packaging

Corresponding author: GUO Peng-Ran, prguo@fenxi.com.cn

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

热提取乳液进样-单颗粒电感耦合等离子体质谱法测定食品包装材料中的纳米银

通讯作者: 郭鹏然,E-mail:prguo@fenxi.com.cn

English

Thermal Extraction-emulsion Injection Combining Single Particle-inductively Coupled Plasma-mass Spectrometry for Determination of Sliver Nanoparticles in Food Packaging

Corresponding author: GUO Peng-Ran, prguo@fenxi.com.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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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs