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Suspect screening of 200 hazardous substances in plastic toys using ultra-high-performance liquid chromatography-hybrid quadrupole time-of-flight mass spectrometry.
Journal of Chromatography A ( IF 3.8 ) Pub Date : 2019-12-27 , DOI: 10.1016/j.chroma.2019.460830
Xianshuang Meng 1 , Nan Zhang 2 , Xiaojie Sun 3 , Zengyuan Niu 4 , Yulin Deng 5 , Jianqiang Xu 6 , Hua Bai 1 , Qiang Ma 1
Affiliation  

There is an urgent need for the development of efficient and comprehensive analytical methods for organic chemical compounds due to their increasing number and diversity in children's toy products. The presence of these chemicals in toys poses an extreme risk for the health and development of children. In this study, an analytical methodology has been developed using ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS). This hybrid instrumentation together with an in-house accurate-mass database and a mass spectral library, allows for wide-scope screening and identification of hazardous substances in plastic toys. A total number of 200 compounds belonging to eight chemical families were investigated, such as coloring agents, plasticizers, fragrance allergens, nitrosamines, primary aromatic amines, flame retardants, perfluorinated compounds, and endocrine disruptors. Following a straightforward and efficient dissolution/precipitation method for sample preparation, chemical screening and confirmation were conducted by comparing the experimentally measured exact mass, retention time, and isotopic pattern with the accurate-mass database and by matching the acquired MS/MS spectra against the mass spectral library. The matrix effect, linearity, sensitivity, precision, and recovery of the proposed method were properly evaluated. The obtained limits of detection (LODs) and quantitation (LOQs) were in the range of 0.01-0.98 mg kg-1 and 0.03-2.99 mg kg-1, respectively. The applicability of the developed protocol was verified through the analysis of 55 real plastic toy products.

中文翻译:

使用超高效液相色谱-混合四极杆飞行时间质谱仪对塑料玩具中的200种有害物质进行可疑筛查。

由于有机化合物在儿童玩具产品中的数量和多样性不断增加,因此迫切需要开发一种有效且全面的有机化合物分析方法。这些化学物质在玩具中的存在对儿童的健康和发育构成了极大的风险。在这项研究中,使用超高效液相色谱结合四极杆飞行时间质谱(UHPLC-Q-TOF-MS)开发了一种分析方法。这种混合仪器加上内部的精确质量数据库和质谱库,可以进行宽范围的筛选和识别塑料玩具中的有害物质。共调查了属于八个化学族的200种化合物,例如着色剂,增塑剂,香料过敏原,亚硝胺,伯芳香胺,阻燃剂,全氟化合物和内分泌干扰物。采用一种简单有效的溶解/沉淀方法进行样品制备后,通过将实验测得的准确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS谱图与质谱图进行比对,从而进行化学筛选和确认。质谱库。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。全氟化合物和内分泌干扰物。采用一种简单有效的溶解/沉淀方法进行样品制备后,通过将实验测得的准确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS谱图与质谱图进行比对,从而进行化学筛选和确认。质谱库。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。全氟化合物和内分泌干扰物。采用一种简单有效的溶解/沉淀方法进行样品制备后,通过将实验测得的准确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS谱图与质谱图进行比对,从而进行化学筛选和确认。质谱库。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。采用一种简单有效的溶解/沉淀方法进行样品制备后,通过将实验测得的准确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS谱图与质谱图进行比对,从而进行化学筛选和确认。质谱库。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。采用一种简单有效的溶解/沉淀方法进行样品制备后,通过将实验测得的准确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS谱图与质谱图进行比对,从而进行化学筛选和确认。质谱库。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1之间。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。通过将实验测得的精确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS质谱图与质谱库进行比对,进行化学筛选和确认。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。通过将实验测得的精确质量,保留时间和同位素模式与精确质量数据库进行比较,并将获得的MS / MS质谱图与质谱库进行比对,进行化学筛选和确认。正确评估了该方法的基质效应,线性,灵敏度,精密度和回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。正确评估了所提方法的回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。正确评估了所提方法的回收率。获得的检出限(LOD)和定量限(LOQ)分别在0.01-0.98 mg kg-1和0.03-2.99 mg kg-1的范围内。通过分析55种真实的塑料玩具产品,验证了所开发协议的适用性。
更新日期:2020-04-21
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