Article (Scientific journals)
Verification of the Active Pharmaceutical Ingredient in Tablets Using a Low-Cost Near-Infrared Spectrometer
Gabel, Julia; Gnegel, Gesa; Kessler, Waltraud et al.
2023In Talanta Open, p. 100270
Peer Reviewed verified by ORBi
 

Files


Full Text
Gabel et al. - 2023 - Verification of the active pharmaceutical ingredie.pdf
Author postprint (3.33 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Analytical Chemistry; falsified medicines; near infrared; screening device; handheld; one-class modelling
Abstract :
[en] The present study investigated the possibilities and limitations of using a low-cost NIR spectrometer for the verification of the presence of the declared active pharmaceutical ingredients (APIs) in tablet formulations, especially for medicine screening studies in low-resource settings. Spectra from 950 to 1650 nm were recorded for 170 pharmaceutical products representing 41 different APIs, API combinations or placebos. Most of the products, including 20 falsified medicines, had been collected in medicine quality studies in African countries. After exploratory principal component analysis, models were built using data-driven soft independent modelling of class analogy (DD-SIMCA), a one-class classifier algorithm, for tablet products of penicillin V, sulfamethoxazole/trimethoprim, ciprofloxacin, furosemide, metronidazole, metformin, hydrochlorothiazide, and doxycycline. Spectra of amoxicillin and amoxicillin/clavulanic acid tablets were combined into a single model. Models were tested using Procrustes cross-validation and by projection of spectra of tablets containing the same or different APIs. Tablets containing no or different APIs could be identified with 100% specificity in all models. A separation of the spectra of amoxicillin and amoxicillin/clavulanic acid tablets was achieved by partial least squares discriminant analysis. 15 out of 19 external validation products (79%) representing different brands of the same APIs were correctly identified as members of the target class; three of the four rejected samples showed an API mass percentage of the total tablet weight that was out of the range covered in the respective calibration set. Therefore, in future investigations larger and more representative spectral libraries are required for model building. Falsified medicines containing no API, incorrect APIs, or grossly incorrect amounts of the declared APIs could be readily identified. Variation between different NIR-S-G1 spectroscopic devices led to a loss of accuracy if spectra recorded with different devices were pooled. Therefore, piecewise direct standardization was applied for calibration transfer. The investigated method is a promising tool for medicine screening studies in low-resource settings.
Research Center/Unit :
CIRM - Centre Interdisciplinaire de Recherche sur le Médicament - ULiège
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Gabel, Julia
Gnegel, Gesa
Kessler, Waltraud
Sacre, Pierre-Yves  ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Heide, Lutz 
Language :
English
Title :
Verification of the Active Pharmaceutical Ingredient in Tablets Using a Low-Cost Near-Infrared Spectrometer
Publication date :
November 2023
Journal title :
Talanta Open
ISSN :
2666-8319
Publisher :
Elsevier BV
Pages :
100270
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 November 2023

Statistics


Number of views
17 (2 by ULiège)
Number of downloads
15 (1 by ULiège)

Scopus citations®
 
0
Scopus citations®
without self-citations
0
OpenAlex citations
 
1

Bibliography


Similar publications



Contact ORBi