Development of guidelines for the control of lead content in paint and varnishes

N. Fedorova, Marina Valentinovna Egorova, Aleksandr Sergeevich Rodionov, Yuliya Yurevna Bogdanova, Khalidya Khizbulaevna Khamidulina, E. Tarasova, Andrey Konstantinovich Nazarenko
{"title":"Development of guidelines for the control of lead content in paint and varnishes","authors":"N. Fedorova, Marina Valentinovna Egorova, Aleksandr Sergeevich Rodionov, Yuliya Yurevna Bogdanova, Khalidya Khizbulaevna Khamidulina, E. Tarasova, Andrey Konstantinovich Nazarenko","doi":"10.47470/0869-7922-2022-30-5-323-331","DOIUrl":null,"url":null,"abstract":"Introduction. Determination of low concentrations of lead in paint and varnishes is one of the actual problems in ensuring the safety of these products. The requirements set out in the draft Technical Regulation of the Eurasian Economic Union «on the Safety of Paint and Coating Materials» for a standard of 0.009% lead on a dry weight basis stipulate the availability of precision methods for determining lead in paint and varnishes with low detection limits. Materials and methods. Nine different types of paint samples were selected as test objects. The study was carried out by atomic absorption spectrometry with electrothermal atomisation with pre-microwave sample preparation. Paint samples were preliminarily applied on a sheet of sanded FC plywood, dried and taken from the surface with a spatula in the form of fine shavings. The absolutely dry chips were microwaved, centrifuged to separate the undecomposed sludge and analysed. The efficiency of the developed approach was proven by validating the method on 20 model samples of one of the paint types investigated. Results. Validation of the proposed method of lead determination in paints gave satisfactory results in terms of recovery rate and repeatability, so it can be concluded that the method is suitable for the solution of the posed analytical problem. Having analysed the results obtained by measuring lead content in 9 samples of paint products according to the proposed scheme in the described methodology, one can make a confident conclusion about the absence of exceeding the maximum permissible lead content, considering the expected reduction of the standard to 0.009%. Conclusion. The usage of the proposed method will make it possible to successfully control the lead content in paintwork materials at levels that comply with international standards and, in the long term, ensure that the requirements of the Technical Regulation of the Eurasian Economic Union «on the Safety of Paint and Coating Materials» are met in terms of reducing the regulatory indicator to 0.009%.","PeriodicalId":23128,"journal":{"name":"Toxicological Review","volume":"5 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Toxicological Review","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.47470/0869-7922-2022-30-5-323-331","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Introduction. Determination of low concentrations of lead in paint and varnishes is one of the actual problems in ensuring the safety of these products. The requirements set out in the draft Technical Regulation of the Eurasian Economic Union «on the Safety of Paint and Coating Materials» for a standard of 0.009% lead on a dry weight basis stipulate the availability of precision methods for determining lead in paint and varnishes with low detection limits. Materials and methods. Nine different types of paint samples were selected as test objects. The study was carried out by atomic absorption spectrometry with electrothermal atomisation with pre-microwave sample preparation. Paint samples were preliminarily applied on a sheet of sanded FC plywood, dried and taken from the surface with a spatula in the form of fine shavings. The absolutely dry chips were microwaved, centrifuged to separate the undecomposed sludge and analysed. The efficiency of the developed approach was proven by validating the method on 20 model samples of one of the paint types investigated. Results. Validation of the proposed method of lead determination in paints gave satisfactory results in terms of recovery rate and repeatability, so it can be concluded that the method is suitable for the solution of the posed analytical problem. Having analysed the results obtained by measuring lead content in 9 samples of paint products according to the proposed scheme in the described methodology, one can make a confident conclusion about the absence of exceeding the maximum permissible lead content, considering the expected reduction of the standard to 0.009%. Conclusion. The usage of the proposed method will make it possible to successfully control the lead content in paintwork materials at levels that comply with international standards and, in the long term, ensure that the requirements of the Technical Regulation of the Eurasian Economic Union «on the Safety of Paint and Coating Materials» are met in terms of reducing the regulatory indicator to 0.009%.
制定控制油漆和清漆中铅含量的准则
介绍。油漆和清漆中低浓度铅的测定是确保这些产品安全的实际问题之一。欧亚经济联盟《油漆和涂料材料安全》技术法规草案中对干重含铅量为0.009%的标准提出了要求,规定了用于测定油漆和清漆中含铅量的低检测限精确方法的可用性。材料和方法。选取9种不同类型的涂料样品作为测试对象。采用电热雾化原子吸收光谱法对样品进行预微波制备。将油漆样品初步涂在磨砂的FC胶合板上,干燥后用刮刀从表面取下细屑。绝对干燥的碎片被微波,离心分离未分解的污泥和分析。通过对其中一种涂料类型的20个模型样品进行验证,证明了所开发方法的有效性。结果。对所建立的涂料中铅的测定方法进行了验证,在回收率和重复性方面取得了令人满意的结果,因此可以得出结论,该方法适用于解决所提出的分析问题。根据上述方法中的建议方案,分析了9个油漆产品样本的铅含量测量结果后,考虑到预期标准将降至0.009%,我们可以自信地得出结论,没有超过最大允许铅含量。结论。使用拟议的方法将有可能成功地将油漆材料中的铅含量控制在符合国际标准的水平,并且从长远来看,确保欧亚经济联盟“油漆和涂层材料安全”技术法规的要求,将监管指标降低到0.009%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信