Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation

Zoledronic acid (ZA) is used in the treatment of various bone pathologies, but it forms complexes with calcium ions present in body fluids, decreasing ZA bioavailability. Thereby, the study first describes the identification of ZA-calcium complexes that form in calcium-rich environments, in order to...

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Main Authors: Anca-Roxana Petrovici, Mihaela Silion, Natalia Simionescu, Rami Kallala, Mariana Pinteala, Stelian S. Maier
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/11/5944
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author Anca-Roxana Petrovici
Mihaela Silion
Natalia Simionescu
Rami Kallala
Mariana Pinteala
Stelian S. Maier
author_facet Anca-Roxana Petrovici
Mihaela Silion
Natalia Simionescu
Rami Kallala
Mariana Pinteala
Stelian S. Maier
author_sort Anca-Roxana Petrovici
collection DOAJ
description Zoledronic acid (ZA) is used in the treatment of various bone pathologies, but it forms complexes with calcium ions present in body fluids, decreasing ZA bioavailability. Thereby, the study first describes the identification of ZA-calcium complexes that form in calcium-rich environments, in order to establish the bioavailable ZA concentration. Then, a new method for quantification of low ZA amounts in milieus that mimics in vivo conditions by using simulated body fluid and calcium sulfate hemihydrate was described. Almost all analytical methods of ZA quantification described in the literature require compound derivatization. At very low concentrations, derivatization is prone to analyte loss, therefore compromising the analytical results. In our study, we avoided ZA derivatization by using a high-performance liquid chromatography and electrospray ionization mass spectrometry (HPLC-ESI-MS) system, conducting the investigation based on the fragmentation mass extracted ion chromatograms specific to the ZA protonated form. The method was validated by selectivity, precision, accuracy, linearity, signal to noise ratio, and limit of detection and limit of quantification calculation. Experimentally, this method can detect ranges of 0.1–0.5 ng/mL and precisely quantify ZA concentrations as low as 0.1 ng/mL. This method could provide the basis for quantifying low amounts of ZA in the blood during long-term administration.
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spelling doaj.art-75f836bbc1ee47fcbf9a43a2fb1e3f382023-11-23T14:06:47ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-05-012311594410.3390/ijms23115944Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and ValidationAnca-Roxana Petrovici0Mihaela Silion1Natalia Simionescu2Rami Kallala3Mariana Pinteala4Stelian S. Maier5Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, RomaniaPhysics of Polymers and Polymeric Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, RomaniaCentre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, RomaniaCorthotec Limited, 130 Wood Street, London EC2V 6DL, UKCentre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, RomaniaCentre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, RomaniaZoledronic acid (ZA) is used in the treatment of various bone pathologies, but it forms complexes with calcium ions present in body fluids, decreasing ZA bioavailability. Thereby, the study first describes the identification of ZA-calcium complexes that form in calcium-rich environments, in order to establish the bioavailable ZA concentration. Then, a new method for quantification of low ZA amounts in milieus that mimics in vivo conditions by using simulated body fluid and calcium sulfate hemihydrate was described. Almost all analytical methods of ZA quantification described in the literature require compound derivatization. At very low concentrations, derivatization is prone to analyte loss, therefore compromising the analytical results. In our study, we avoided ZA derivatization by using a high-performance liquid chromatography and electrospray ionization mass spectrometry (HPLC-ESI-MS) system, conducting the investigation based on the fragmentation mass extracted ion chromatograms specific to the ZA protonated form. The method was validated by selectivity, precision, accuracy, linearity, signal to noise ratio, and limit of detection and limit of quantification calculation. Experimentally, this method can detect ranges of 0.1–0.5 ng/mL and precisely quantify ZA concentrations as low as 0.1 ng/mL. This method could provide the basis for quantifying low amounts of ZA in the blood during long-term administration.https://www.mdpi.com/1422-0067/23/11/5944zoledronic acid (ZA)calcium sulfate hemihydratesolid inorganic matrixHPLC-ESI-MS analysisextracted ion chromatogram (EIC)ZA-calcium complexes
spellingShingle Anca-Roxana Petrovici
Mihaela Silion
Natalia Simionescu
Rami Kallala
Mariana Pinteala
Stelian S. Maier
Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation
International Journal of Molecular Sciences
zoledronic acid (ZA)
calcium sulfate hemihydrate
solid inorganic matrix
HPLC-ESI-MS analysis
extracted ion chromatogram (EIC)
ZA-calcium complexes
title Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation
title_full Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation
title_fullStr Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation
title_full_unstemmed Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation
title_short Quantification of Low Amounts of Zoledronic Acid by HPLC-ESI-MS Analysis: Method Development and Validation
title_sort quantification of low amounts of zoledronic acid by hplc esi ms analysis method development and validation
topic zoledronic acid (ZA)
calcium sulfate hemihydrate
solid inorganic matrix
HPLC-ESI-MS analysis
extracted ion chromatogram (EIC)
ZA-calcium complexes
url https://www.mdpi.com/1422-0067/23/11/5944
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AT nataliasimionescu quantificationoflowamountsofzoledronicacidbyhplcesimsanalysismethoddevelopmentandvalidation
AT ramikallala quantificationoflowamountsofzoledronicacidbyhplcesimsanalysismethoddevelopmentandvalidation
AT marianapinteala quantificationoflowamountsofzoledronicacidbyhplcesimsanalysismethoddevelopmentandvalidation
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