PMID- 26449156 OWN - NLM STAT- MEDLINE DCOM- 20160610 LR - 20181202 IS - 1520-5851 (Electronic) IS - 0013-936X (Linking) VI - 49 IP - 21 DP - 2015 Nov 3 TI - Compositional Analysis of Commercial Oligomeric Organophosphorus Flame Retardants Used as Alternatives for PBDEs: Concentrations and Potential Environmental Emissions of Oligomers and Impurities. PG - 12913-21 LID - 10.1021/acs.est.5b03447 [doi] AB - Four commercial oligomeric organophosphorus flame retardants (o-PFRs) were characterized using a refractive index detector and atmospheric pressure photoionization (APPI)-quadrupole time-of-flight mass spectrometry (QTOF-MS) compatible with gel permeation chromatography (GPC). Commercial o-PFRs consisted of approximately 90% or more oligomers and several impurities. Triphenyl phosphate (TPHP), tris(dimethylphenyl) phosphate (TDMPP), tris(2-chloroisopropyl) phosphate (TCIPP), and some new impurities were identified as byproducts of some manufacturing process of commercial o-PFRs for the first time. The concentrations of TPHP, TDMPP, and TCIPP were more than 1 weight %, whereas those of new impurities might be approximately 1 weight % by comparison among their abundances acquired through GPC-APPI-QTOF-MS analysis. Based on their vapor pressure and water solubility estimations, the potential environmental emissions of low molecular weight impurities were expected to be higher than those of oligomers. The presence and environmental emissions of low molecular weight impurities might be regarded as risk factors along with commercial o-PFRs. FAU - Matsukami, Hidenori AU - Matsukami H AD - Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies (NIES) , 16-2 Onogawa, Tsukuba 305-8506, Japan. AD - Graduate School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan. FAU - Suzuki, Go AU - Suzuki G AD - Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies (NIES) , 16-2 Onogawa, Tsukuba 305-8506, Japan. FAU - Takigami, Hidetaka AU - Takigami H AD - Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies (NIES) , 16-2 Onogawa, Tsukuba 305-8506, Japan. AD - Graduate School of Frontier Sciences, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151015 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Environmental Pollutants) RN - 0 (Flame Retardants) RN - 0 (Organophosphates) RN - 0 (Organophosphorus Compounds) RN - 13674-84-5 (tri-(2-chloroisopropyl)phosphate) RN - YZE19Z66EA (triphenyl phosphate) SB - IM MH - Chromatography, Gel/methods MH - Environmental Pollutants/analysis/chemistry MH - Flame Retardants/*analysis MH - Mass Spectrometry/methods MH - Molecular Weight MH - Organophosphates/analysis MH - Organophosphorus Compounds/*analysis/*chemistry EDAT- 2015/10/10 06:00 MHDA- 2016/06/11 06:00 CRDT- 2015/10/10 06:00 PHST- 2015/10/10 06:00 [entrez] PHST- 2015/10/10 06:00 [pubmed] PHST- 2016/06/11 06:00 [medline] AID - 10.1021/acs.est.5b03447 [doi] PST - ppublish SO - Environ Sci Technol. 2015 Nov 3;49(21):12913-21. doi: 10.1021/acs.est.5b03447. Epub 2015 Oct 15.