Vertical distribution characteristics of organochlorinated pesticides (HCHs and DDTs) and chloronbzenes in sediments of the Pearl River Delta, were quantified by GC/ECD with the outer standard material.

• 2003年5月在珠江三角洲典型河网采集沉积物柱样,对其中的POPs如有机氯农药六六六(HCHs)、滴滴涕(DDTs)和氯苯类化合物(CBs)以GC/ECD外标法定量分析测定,以了解珠江三角洲地区沉积物中POPs的污染现状及污染史。