Provision conditions for increasing the reliability of trace analysis of toxic metals
- 作者: Egorova M.V.1,2, Rodionov A.S.1, Bogdanova J.J.1
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隶属关系:
- Federal Scientific Center of Hygiene named after F.F. Erisman of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing
- Russian Medical Academy of Continuous Professional Education
- 期: 卷 100, 编号 9 (2021)
- 页面: 1013-1018
- 栏目: METHODS OF HYGIENIC AND EXPERIMENTAL INVESTIGATIONS
- ##submission.datePublished##: 06.09.2021
- URL: https://rjraap.com/0016-9900/article/view/639025
- DOI: https://doi.org/10.47470/0016-9900-2021-100-9-1013-1018
- ID: 639025
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Introduction. Heavy metals are included in one of the significant groups of ecotoxicants. Determining heavy metals at low levels is one of the main problems in analytical chemistry, which depends on various factors. Ignoring the contribution of these factors to the total uncertainty can increase the probability of distortion of the results due to an erroneous decision on the compliance of the obtained data with a particular standard. The most significant influences include the purity of reagents, dishes, and air in laboratory rooms.
Purpose of the work. Search for ways of reducing the listed influences provided that the expense of time, material and labour resources are minimized.
Materials and methods. In the course of the work, many experiments were carried out, including the analysis of nitric acid for the content of metals before and after cleaning by distillation, the analysis of washes from new fluoroplastic laboratory glassware and glassware that had been cleaned by steaming, an assessment of the effect of air pollution in the laboratory room based on a study of calibration curves, which were constructed at the analysis of standard iron solutions prepared in the Clean Workplace and in a conventional fume hood. All measurements were performed by inductively coupled plasma mass spectrometry on Agilent 7800 ICP-MS mass spectrometer.
Results. The efficiency of the proposed methods for eliminating interfering influences on the analysis has been experimentally proved.
Conclusion. The technical and analytical problem, which consists of finding optimal conditions for preparation of reagents, glassware cleaning and decreasing the influence of laboratory air pollution, allows to increase reliability of the obtained results and prevent distortion of information about the observed degree of environmental pollution.
Contribution:
Egorova M.V. — the concept and design of the study, editing, approval of the final version of the article, responsibility for the integrity of all parts of the article;
Rodionov A.S. — collection and processing of material, statistical analysis, writing the manuscript, collection of the literature data;
Bogdanova Ju.J. — collection and processing of material.
Conflict of interest. The authors declare no conflict of interest.
Acknowledgment. The study had no sponsorship.
作者简介
Marina Egorova
Federal Scientific Center of Hygiene named after F.F. Erisman of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing; Russian Medical Academy of Continuous Professional Education
编辑信件的主要联系方式.
Email: analyt1@yandex.ru
ORCID iD: 0000-0001-9158-5136
MD, PhD, senior researcher of an analytical control methods department of Federal Scientific Center of Hygiene named after F.F. Erisman of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing, Mytishchi, 141014, Russian Federation.
e-mail: analyt1@yandex.ru
俄罗斯联邦Alexander Rodionov
Federal Scientific Center of Hygiene named after F.F. Erisman of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing
Email: noemail@neicon.ru
ORCID iD: 0000-0002-0552-0174
俄罗斯联邦
Julia Bogdanova
Federal Scientific Center of Hygiene named after F.F. Erisman of the Federal Service for Supervision in Protection of the Rights of Consumer and Man Wellbeing
Email: noemail@neicon.ru
ORCID iD: 0000-0002-1265-287X
俄罗斯联邦
参考
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