Identification and quantification of plasticizers, bisphenol
Identification and quantification of plasticizers, bisphenol, and environmental toxic mineral elements residues in medicines from Tunisian markets Asma Beltifa, Sana Alibi, Vincenzo Lo Turco, Hedi Ben Mansour & Giuseppa Di Bella Environmental Science and Pollution Research 28 , 50462–50470 ( 2025) Cite this article 233 Accesses 2 Citations Metrics
Machine learning-assisted non-destructive plasticizer
Identification and quantification of plasticizers by gas chromatography Plasticizers in PVC objects were identified by GC–MS in a full-scan screening (Supplementary Fig. S1 )....
Compact NMR Spectroscopy for Low-Cost Identification
The proposed method allows a low-cost, fast, and simple identification of the different plasticizers, even in the presence of a strong solvent signal. Plasticizer concentrations below 2 mg...
Identification and quantification of plasticizers, bisphenol
Diethyl phthalate was detected in three medicines: the highest concentration (17.03mgkg -1) was found in capsules. The other plasticizers and bisphenol A levels were below the limits of quantification in the all samples. All tested products were safe for use, except two clay-originated products.
Phthalates and alternative plasticizers and potential
Identification and quantification of 14 phthalates and 5 non-phthalate plasticizers in PVC medical devices by GC–MS. J Chromatogr B 2014; 949–950: 99–108. Article Google Scholar
- Do plasticizers comply with EU regulations?
- Compliance with EU regulations concerning plasticizer use can be checked. A novel approach is introduced for the fast, reliable, and low-cost recognition and quantification of plasticizers in plasticizers mixtures. It uses benchtop 1 H NMR spectroscopy and indirect hard modeling, a mechanistic multivariate regression technique.
- Can We quantify plasticizers in solvent mixtures with benchtop proton NMR spectroscopy?
- The feasibility of recognizing and quantifying plasticizers in solvent mixtures with benchtop proton NMR spectroscopy and IHM was presented for the first time. For this, a methodology to quantify the absolute concentrations using IHM was introduced and validated on mixture samples.
- Can plasticizers be quantified in a general collection of degraded PVC objects?
- Additionally, regression models for quantification of di (2-ethylhexyl) phthalate and di (2-ethylhexyl) terephthalate in PVC were built. This study of real-life objects demonstrates that classification and quantification of plasticizers in a general collection of degraded PVC objects is possible, providing valuable data to collection managers.
- Can NMR be used to determine plasticizer concentration in PVC?
- However, there are few NMR applications to determine plasticizers in PVC. Recently, authors described a non-destructive quantification of a local plasticizer concentration in PVC by 1 H NMR relaxometry .
- How are plasticizers quantified in NMR spectroscopy?
- Quantification of the molecule can be obtained by evaluating the 1 H integral ratio with a reference molecule in the co-axial insert. 13 C NMR spectra were not used to quantify plasticizers due to their low sensitivity, low natural abundance, and long relaxation time.
- How to determine plasticizers in medical devices?
- The simultaneous determination of plasticizers in medical devices has been obtained through various methods, including gas chromatography–mass spectrometry (GC-MS) [5, 6], high-performance liquid chromatography–ultraviolet (HPLC-UV) , supercritical fluid chromatography with evaporative light scattering detection (SFC-ESLD), and HPLC-ESLD .
