Albro P W, Parker C E
J Chromatogr. 1979 Feb 1;169:161-6. doi: 10.1016/0021-9673(75)85041-2.
The complete polychlorinated biphenyl compositions of two American products, Aroclor 1242 and its more modern replacement, Aroclor 1016, have been determined by gas-liquid chromatography (GLC) on twelve liquid phases of differing selectivities. Attempts were made to determine the degree of contamination of these Aroclors with chlorinated naphthalenes, using GLC with multiple ion-monitoring mass spectrometry. Chlorinated dibenzofurans, indetectable in Aroclor 1016, were tentatively identified by negative chemical-ionization mass spectrometry and their retention times relative to dieldrin on two GLC liquid phases. Quantitation of the dibenzofurans was initially accomplished using an electron-capture detector, and confirmed by negative chemical-ionization mass spectrometry. Aroclor 1242 contained less than 0.05 mol.% chloronaphthalenes, while Aroclor 1016 contained less than 0.06 mol.% of these compounds. Aroclor 1242 had approximately 150 ppb of chlorinated dibenzofurans, of which 43% was the toxic 2,3,7,8-tetrachloro isomer.
已通过气液色谱法（GLC）在十二种选择性不同的液相上测定了两种美国产品多氯联苯的完整成分，即Aroclor 1242及其更新的替代品Aroclor 1016。尝试使用带有多离子监测质谱的GLC来测定这些Aroclor中被氯化萘污染的程度。在Aroclor 1016中无法检测到的氯化二苯并呋喃，通过负化学电离质谱法初步鉴定，并在两个GLC液相上测定了它们相对于狄氏剂的保留时间。二苯并呋喃的定量最初使用电子捕获检测器完成，并通过负化学电离质谱法进行了确认。Aroclor 1242含有少于0.05摩尔％的氯萘，而Aroclor 1016含有少于0.06摩尔％的这些化合物。Aroclor 1242含有约150 ppb的氯化二苯并呋喃，其中43％是有毒的2,3,7,8-四氯异构体。
