Differential determination of plasticizers and
In this study, we measured 54 compounds, including plasticizers (phthalates, adipates, and others) and organophosphorus flame retardants, in indoor air samples from the living rooms of 21 dwellings in 11 prefectures across Japan.
Simultaneous and sensitive determination of the main
With the prominent but toxicologically critical plasticizer di-(2-ethylhexyl) phthalate (DEHP) declining, alternative plasticizers are increasingly used leading to a continuously more diverse exposure situation of humans with multiple plasticizers. Therefore, an on-line SPE-LC-MS/MS method for the simultaneo
Analytical methods for the determination of DEHP plasticizer
It provides a rapid method for the identification of plasticizers present in the specimens prior to exact determination. Moreover, the authors hypothesized that the sensitivity of their method could be improved by using a triple-quadrupole MS instead of a single-quadrupole MS, or with a quadrupole time-of-flight as was used by Kuki et al. [49] .
Environmental Science and Pollution Research | Volume 25, issue 8
Maternal–fetal transfer rates of PCBs, OCPs, PBDEs, and dioxin-like compounds predicted through quantitative structure–activity relationship modeling. Akifumi Eguchi. Masamichi Hanazato. Chisato Mori. Advances in environmental chemistry of pollutants. Published: 23 September 2015. Pages: 7212 - 7222.
Analytical methods for the determination of DEHP plasticizer
Analytical methods for the determination of DEHP plasticizer alternatives present in medical devices: a review Until 2010, diethylhexylphthalate (DEHP) was the plasticizer most commonly used to soften PVC medical devices (MDs), because of a good efficiency/cost ratio.
- How are plasticizers extracted from PVC-tubing?
- Plasticizers were extracted from PVC-tubing by dissolving PVC in THF then precipitating it in methanol with a yield of over 90% for each plasticizer. This assay could feasibly be used to quantify plasticizers in PVC medical devices. 1. Introduction
- What are the limits of quantification of PVC plasticizers?
- The reported limits of quantification were 5 μg/mL and 25 ng/mL, respectively. After extraction from PVC tubes by diluting with THF and precipitating PVC with ethanol, the plasticizers were quantified by GC–MS with high sensitivity (LOD between 0.06 and 0.25 μg/mL and LOQ between 0.01 and 2.0 μg/mL, depending on the plasticizer).
- How is a plasticizer weighed?
- Each plasticizer was weighed on a precision scale (model 220 XT, Dietikon, Switzerland) directly in a volumetric flask and dissolved in ACN to get stock solutions: BBP, DEHP, DEHT, TOTM at 0.5 mg/mL and ATBC, DINCH at 10 mg/mL.
- Which plasticizers were separated by Gradient elution?
- Five plasticizers, acetyl tributyl citrate, di- (2-ethylhexyl)-phthalate, di- (ethylhexyl)-terephthalate, di-isononyl-1,2-cyclohexane-dicarboxylate, and trioctyl trimellitate, were separated on a C8 stationary phase (2.6 μm, 100 mm × 4.6 mm) under gradient elution in 13 min.
- Can plasticizers be quantified by GC–MS?
- Gimeno et al. recently published a new GC–MS technique to quantify 19 plasticizers in a single run. Among their tested compounds ATBC, DEHT, DINCH and TOTM were also analyzed. In their study, plasticizers were extracted by dissolving PVC samples in THF and precipitating with ethanol .
- How are plasticizers extracted?
- In their study, plasticizers were extracted by dissolving PVC samples in THF and precipitating with ethanol . The extraction yields of plasticizers (from 91 to 120%) were similar to results presented in our paper (from 91 to 104%), but with greater variability.
