Teeth and bones micro-slurries introduction to MIP OES for elements simultaneous quantification

Michał Janeda; Mariusz Ślachciński

doi:10.1016/j.ab.2023.115129

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Title

Teeth and bones micro-slurries introduction to MIP OES for elements simultaneous quantification

Authors

Michał Janeda (WTCH) ^{[ 1 ][ 7.6 ][ SzD ]}
Mariusz Ślachciński (WTCH) ^{[ 1 ][ 7.6 ][ P ]}

^{[ 1 ]} Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | ^{[ SzD ]} doctoral school student | ^{[ P ]} employee

Scientific discipline (Law 2.0)

[7.6] Chemical sciences

Year of publication

2023

Published in

Analytical Biochemistry

Journal year: 2023 | Journal volume: vol. 670

Article type

scientific article

Publication language

english

Keywords

EN

Slurry sampling
Teeth and bones samples
Micro-volume sample injection
Simultaneous metals quantification
Microwave induced plasma
Optical emission spectrometry

Abstract

EN This study aims development of new, rapid and direct method for simultaneous multi-elemental determination in micro-volume slurried samples of teeth and bones. The method proposed allow for direct, without prior sample decomposition, injection of 15 μL of slurries (Bone Meal NIST 1486, deciduous human and dog teeth) into microwave induced plasma optical emission spectrometer (MIP OES) and determination of Ca, Cu, Fe, K, Mg, Mn, Na, Pb, Sr and Zn. The optimization procedures were undertaken (univariate and simplex methods) to achieve the best values of parameters influencing the analytical signals. Minimum dead volume, high nebulization and slurry transport efficiency were obtained by using on-axis low-volume spray chamber/v-groove pneumatic nebulizer interface for 15 μL slurry injection in discontinues mode (at 1.2 mL min− 1 pump speed). Analytical parameters of the proposed method were assessed by determination of the limits of detection (LODs), absolute detection limit and precision (RSDs). The obtained LODs were appropriate (in the range of mg/ kg) for the determination of the elements in the standard reference material (Bone Meal NIST 1486) for validation procedure and successful application in two real samples (deciduous human and dog teeth).

Date of online publication

21.03.2023

Pages (from - to)

115129-1 - 115129-8

DOI

10.1016/j.ab.2023.115129

URL

https://doi.org/10.1016/j.ab.2023.115129

Comments

Article number: 115129

Ministry points / journal

100