采集，收集

1. picking, collecting, harvesting, gathering

noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb

提取

2. extraction

noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb

瓦礫からサンプルを採取、本格的な調査に乗り出したと言います。