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分析用的ＢＴＦ参比样由苯二次络合法提纯获得，ＢＴＦ样品的定量分析系采用高效液相色谱法，以￣＃３０５０日立凝胶为柱填料，甲醇－水作流动相，能使ＢＴＦ样品中的各有机物组分完全分离，回收率为９９．９％，主成分的标准偏差为０．２０％。
The analytical BTF reference sample was obtained by the benzene secondary complex purification method. The quantitative analysis of the BTF sample was performed by HPLC. The column was packed with Hitachi Gel # 3050 and methanol-water as the mobile phase. The organic components in the BTF sample were completely separated, with a recovery of 99.9% and a standard deviation of 0.20% for the main component.