At the vertical profile of loess overlaying hidden gold deposit, the distribution of various valence gold is present with a two-layer structure pattern. 本文叙述了埋藏金矿床上覆黄土盖层中各种价态金的次生地球化学分散的研究成果。
The invention provides a folic acid immune colloidal gold test strip and the preparing method thereof. 本发明提供一种叶酸免疫胶体金检测试纸条及其制备方法。