Differentiation of DOTP and DNOP in analysis of restricted
Differentiation of DOTP and DNOP in analysis of restricted phthalate esters using thermal desorption GC/MS ASTM, phthalates, DINCH, DOTP, DNOP, PVC Phthalates in consumer products PYA1-063E, PYA1-064E, PYA1-068E, PYA1-069E Fig. 1 Chromatograms of a PVC which contains various plasticizers obtained by TD-GC/MS Fig. 2 Mass spectra of DNOP and DOTP
Differentiation of DOTP and DNOP in analysis of restricted
Differentiation of DOTP and DNOP in analysis of restricted phthalate esters using thermal desorption GC/MS Phthalates in consumer products PYA1-063E, PYA1-064E, PYA1-068E, PYA1-069E Fig. 1 Chromatograms of a PVC which contains various plasticizers obtained by TD-GC/MS Fig. 2 Mass spectra of DNOP and DOTP TD: 100-320C (20C/min, 5min hold),
Differentiation of DOTP and DNOP in analysis of restricted
Differentiation of DOTP and DNOP in analysis of restricted phthalate esters using thermal desorption GC/MS Applications | | Frontier Lab Instrumentation GC/MSD, Thermal desorption Industries Energy & Chemicals Manufacturer Frontier Lab Key words
Development and Validation of Gas Chromatography-Triple
Due to the presence of relatively high concentrations of DEHP and DOTP, the calibrations with ten times lower concentration of internal standard, but using the same analyte concentration range, were adopted, and their concentrations in the sample were multiplied by the dilution factor.
Determination of Phthalate Concentration in Toys and Children
These six restricted phthalate esters along with other common phthalates such as dimethyl phthalate (DMP), diethyl phthalate (DEP), dihexyl phthalate (DHP), and bis(2-n-butoxyethyl)phthalate (DBEP) were analyzed with an Agilent 5975C Series GC/MSD and Agilent J&W DB-5ms Ultra Inert column, resulting in accurate calibration coefficients, and
- What is DNOP phthalate restriction?
- For DNOP and the two other non-classified phthalates (i.e. DINP5 and DIDP6) the restriction covers the placing on the market and use in toys and childcare articles which can be placed in the mouth by children.
- Is DNOP a pollutant?
- DnOP is on the list of priority pollutant of the US Environmental Protection Agency (including six PAEs, dimethyl phthalate (DMP), diethyl phthalate (DEP), DBP, butyl benzyl phthalate (BBP), di (2-ethylhexyl) phthalate (DEHP) and DnOP). DnOP is also on the list of priority pollutant of the European Communities ( Keith and Telliard, 1979).
- What is DIBP & DNOP?
- 2.1. Chemicals and regents Diisobutyl phthalate (DiBP) and Di-n -octyl phthalate (DnOP) were purchased from J&K Scientific Co Ltd. (Beijing, China). Stock solutions of DiBP and DnOP were prepared in dimethyl sulfoxide (DMSO) diluted with rearing water to final concentrations immediately before use.
- When is di-n-octyl phthalate (DOP) considered in a review?
- In the review references have only been considered if it is specified that the substance is equal to di-n-octyl phthalate (DNOP). If di-octyl phthalate (DOP) is mentioned in the study, the study has only been considered if the CAS number corresponding to DNOP is specified.
- Are physiological based pharmacokinetic models available for DOTP?
- Recently, physiological based pharmacokinetic models (PBPK) were published for DINCH (McNally et al., 2019) and for two ortho-phthalates, DINP (Campbell et al., 2020) and di-propyheptyl phthalate (DPHP, McNally et al., 2021). We understand that a model for DOTP also is under development.
- Are DIBP and DNOP toxicity levels controllable?
- Based on the PNECs derived from the acute toxicity data, all RQ values of the median concentrations were below 0.1, indicating the acute risk of DiBP and DnOP in the surface waters of China were at a controllable level. These results were similar to those found in the Songhua River and in Taihu Lake ( Gao et al., 2014 ).
