Krupcík J, Kríz J, Průsová D, Suchánek P, Cervenka Z
J Chromatogr. 1977 Nov 11;142:797-807. doi: 10.1016/s0021-9673(01)92087-4.
Seventy fractions were obtained by vacuum distillation of a PCB mixture containing 42% of chlorine. Four of these fractions were chosen, the composition of which covered the whole of the observed region, and analysed by means of high-performance liquid chromatography (HPLC) on silica gel using n-pentane as the mobile phase and capillary gas-liquid chromatography (GLC) using OV-101 and Carbowax 20M as stationary phases at 200 degrees C. The chosen distillation fractions were further prepared by HPLC, each yielding 10-14 samples. Individual PCB standards and all samples were analysed by HPLC and capillary GLC. These procedures permitted the identification of those compounds which are eluted simultaneously under the conditions used in either HPLC or capillary GLC alone.
通过对含氯量为42%的多氯联苯混合物进行真空蒸馏，得到了70个馏分。从这些馏分中选取了4个，其成分涵盖了整个观察区域，并分别采用以正戊烷为流动相的硅胶高效液相色谱法（HPLC）以及在200℃下以OV - 101和聚乙二醇20M为固定相的毛细管气液色谱法（GLC）进行分析。所选的蒸馏馏分通过HPLC进一步制备，每个馏分得到10 - 14个样品。通过HPLC和毛细管GLC对各个多氯联苯标准品和所有样品进行分析。这些程序能够鉴定出在单独使用HPLC或毛细管GLC的条件下同时洗脱的那些化合物。
