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Boron-nitrogen doped chitosan-based activated carbon, having a specific surface area and pore size distribution, comprises chitosan and boric acid as raw materials. 专利
申请日期: 2013-01-01, 公开日期: 2013-03-06
作者:  QIU J CHENG X XIAO N YU C LING Z ZH
收藏  |  浏览/下载:6/0  |  提交时间:2019/12/13
Water chemical oxygen demand measuring device, has work electrode mixing with diamond film, and fixed on inlet channel of inlet, and pool body and fastening bolt using insulating, hard and corrosion resisting material. 专利
申请日期: 2008-01-01, 公开日期: 2008-07-16
作者:  QUAN X YU H ZHAO Y CHEN S ZHAO H ZH
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/27


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