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Membrane mixing micro-extraction device, has magnetic clamp made of filament of specific diameter and driven by magnetic stirrer to rotate, and envelope with porous membrane formed of hydrophobic membrane of specific aperture. 专利
申请日期: 2010-01-01, 公开日期: 2010-07-14
作者:  QUAN X TAN F CHEN J DENG M
收藏  |  浏览/下载:1/0  |  提交时间:2019/12/24
Solution used for detecting pollution of ferrite on surface of austenite stainless steel contains predetermined amounts of citric acid, sodium citrate, reducing agent, and phenanthroline. 专利
申请日期: 2010-01-01, 公开日期: 2010-09-08
作者:  ZHAO J LEI M SONG G CHENG C DENG D
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/24


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