(来学网)用活性炭采集,气相色谱法测定苯,以0.2L/min流速采集15min空气,加1mlCS2解吸,进样2μl,测得苯为1.0μg,活性炭解吸效率为85%,则空气中苯的浓度为
  • A.
    (来学网)196.08
  • B.
    (来学网)196.078
  • C.
    (来学网)196.1
  • D.
    (来学网)166.7
  • E.
    (来学网)106.6