Technische Universität München, Research Center Weihenstephan for Brewing and Food Quality, Alte Akademie 3, 85354 Freising, Germany.
Environ Pollut. 2013 Apr;175:16-21. doi: 10.1016/j.envpol.2012.12.011. Epub 2013 Jan 9.
Levels and distribution of chlorinated paraffins were studied in randomly taken house dust samples (<63 μm) from the greater area of Munich, Germany. Quantification of short- (SCCPs, C(10)-C(13)) and medium-chain chlorinated paraffins (MCCPs, C(14)-C(16)) were performed using gas chromatography electron capture negative ion mass spectrometry (GC-ECNI-MS). Concentrations of MCCPs in private household samples varied between 9 μg/g and 892 μg/g, and exceeded levels of SCCPs, which were in the range of 4-27 μg/g. Two dust samples from a public building contained up to 2050 μg/g SCCPs but no MCCPs. Among MCCPs, chlorinated tetradecanes were major components with a proportion of almost 50%. Among SCCPs, chlorinated dodecanes were usually present at higher concentrations than the congeners of any C10, C11, and C13 chains. The results indicate that particularly MCCPs may be present in relatively high concentrations in house dusts.
本研究采用气相色谱电子捕获负化学离子源质谱法（GC-ECNI-MS）对德国慕尼黑市区的家庭灰尘（<63μm）样本中的短链氯化石蜡（SCCPs，C（10）-C（13））和中链氯化石蜡（MCCPs，C（14）-C（16））的含量和分布进行了研究。家庭灰尘样本中 MCCPs 的浓度范围为 9μg/g 至 892μg/g，高于 SCCPs（4-27μg/g）。两座公共建筑的两份灰尘样本中含有高达 2050μg/g 的 SCCPs，但未检出 MCCPs。在 MCCPs 中，氯化十四烷是主要成分，占比近 50%。在 SCCPs 中，氯化十二烷通常比任何 C10、C11 和 C13 链的同系物的浓度都高。结果表明，家庭灰尘中 MCCPs 的浓度可能相对较高。
