Purity assessment of thiamethoxam using mass balance and quantitative nuclear magnetic resonance

被引：7

作者：

Li, Xianjiang ^{[1
,2
]}

Zhang, Wei ^{[1
]}

Zhou, Shukun ^{[1
]}

Li, Xiao ^{[1
]}

Tu, Mengling ^{[1
]}

Zhu, Yunxiao ^{[1
]}

Zhang, Qinghe ^{[1
]}

Li, Hongmei ^{[1
]}

机构：

[1] Natl Inst Metrol, Div Metrol Chem, Key Lab Chem Metrol & Applicat Nutr & Hlth State M, Beijing 100029, Peoples R China

[2] Natl Inst Metrol, Div Metrol Chem, 18 East Rd North 3th Ring, Beijing 100029, Peoples R China

来源：

MICROCHEMICAL JOURNAL | 2023年 / 191卷

关键词：

Certified reference material; Mass balance; Quantitative nuclear magnetic resonance; spectroscopy; Thiamethoxam; NEONICOTINOIDS;

D O I：

10.1016/j.microc.2023.108874

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Thiamethoxam (TMX) belongs to the second-generation neonicotinoid pesticide, which is among the most common residual in food commodities. To guarantee accurate quantification and traceability of results in food samples, certified reference materials (CRMs) are indispensable benchmark. TMX was characterized and its purity value was assessed by two independent measurement methods including mass balance (MB) and quan-titative nuclear magnetic resonance spectroscopy (qNMR). Its mass fraction was 997.0 mg/g and 991.7 mg/g in MB and qNMR, respectively. Eventually, a purity of 994 mg/g with standard uncertainty of 3 mg/g (k = 2) was assigned to TMX.

引用

页数：6

共 33 条

[1] Magnetic molecularly imprinted polymer nanoparticles for the extraction and clean-up of thiamethoxam and thiacloprid in light and dark honey [J].

Abdulhussein, Ahmed Qasim ;

Jamil, Arniza Khairani Mohd ;

Abu Bakar, Nor Kartini .

FOOD CHEMISTRY, 2021, 359

[2]

[Anonymous], 2012, THIAMETHOXAM LC ESI

[3]

Butler D., 2018, NATURE

[4] Nationwide Biomonitoring of Neonicotinoid Insecticides in Breast Milk and Health Risk Assessment to Nursing Infants in the Chinese Population [J].

Chen, Dawei ;

Liu, Zhibin ;

Barrett, Holly ;

Han, Jiajun ;

Lv, Bing ;

Li, Yan ;

Li, Jingguang ;

Zhao, Yunfeng ;

Wu, Yongning .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2020, 68 (47) :13906-13915

[5] Separation and characterization of the impurities in 3,3-diamino-4,4-a-zoxyfurazan by ultrahigh-performance liquid chromatography combined with Q-orbitrap mass spectrometry [J].

Chen, Jian-Bo ;

Zhao, Xueyan ;

Zhang, Zhenqi ;

Chen, Ya ;

Fu, Xiaolin ;

Liu, Yu .

MICROCHEMICAL JOURNAL, 2021, 170

[6] Quantitative Analysis of Neonicotinoid Insecticide Residues in Foods: Implication for Dietary Exposures [J].

Chen, Mei ;

Tao, Lin ;

McLean, John ;

Lu, Chensheng .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2014, 62 (26) :6082-6090

[7] Effects of Neonicotinoid Pesticide Exposure on Human Health: A Systematic Review [J].

Cimino, Andria M. ;

Boyles, Abee L. ;

Thayer, Kristina A. ;

Perry, Melissa J. .

ENVIRONMENTAL HEALTH PERSPECTIVES, 2017, 125 (02) :155-162

[8] Neonicotinoids - from zero to hero in insecticide chemistry [J].

Jeschke, Peter ;

Nauen, Ralf .

PEST MANAGEMENT SCIENCE, 2008, 64 (11) :1084-1098

[9]

Jiang YM, 2012, INT CONF MANIP MANU, P205, DOI 10.1109/3M-NANO.2012.6472941

[10]

Juhasz E., 1986, Measurement, V4, P104, DOI 10.1016/0263-2241(86)90017-5

← 1 2 3 4 →