午夜免费-91好色先生-中文字幕在线视频观看-亚洲精品一区二三区不卡-欧美97-亚洲精品无码久久久-欧性猛交ⅹxxx乱大交-麻豆app在线观看-青青草免费公开视频-日本综合色-在线观看911视频-日本一本不卡-欧美男女视频-av五十路-ww欧美

Case
Home Case Extraction of microbial nucleic acid from soil by automatic sample rapid grinder
2022/6/23 11:44:30
Extraction of microbial nucleic acid from soil by automatic sample rapid grinder
Source:Shanghai Jingxin

Extraction and grinding experiment of microbial nucleic acid in soil by automatic sample rapid grinder-Shanghai Jingxin

The Department of Environmental Engineering of Hunan University (the predecessor of the School of Environmental Science and Engineering) was established in 1982. The first-level discipline of Environmental Science and Engineering consists of two second-level disciplines, Environmental Engineering and Environmental Science, and two second-level disciplines of Environmental Engineering and Environmental Science. In the same year, it was approved to establish a postdoctoral station in environmental science and engineering. In 2019, the environmental major of Hunan University was selected as a national first-class undergraduate major construction site. Shanghai Ranking released the 2019 ranking of the best subjects in China, and Hunan University's environmental major entered the top 8% of the subjects. On June 19, 2019, Beijing led the new international hot headlines, and the world's most cited papers in environmental science ranked Chinese universities, and Hunan University ranked second. The college currently has about 350 undergraduates and 450 graduate students.

Experimental purpose: Nucleic acid extraction and grinding of microorganisms in soil microbes

Experimental location: Department of Environmental Engineering, Hunan University

Experimental Materials and Utensils

Sample: dry soil

Instrument: automatic sample rapid grinder (Shanghai Jingxin JXFSTPRP-24)

Consumables: MP soil microbial cell content extraction kit (reagents, centrifuge tubes with grinding beads)

 

Experimental procedure

1. Add the sample to the centrifuge tube;

2. Perform preliminary mixing on a vortexer;

3. Put the sample tube into the adapter after setting the running parameters and time;

4. Start the instrument to the end of the grinding process, and the samples after grinding can be obtained;

Experimental results:

 

Experimental results:

The fully automatic rapid grinder (Shanghai Jingxin JXFSTPRP-24) produced by Shanghai Jingxin Industrial Development Co., Ltd. can completely replace the MP homogenizer required in the kit, and the effect is better! !

主站蜘蛛池模板: 中文字幕在线观看不卡 | 精品99久久久久成人网站免费 | 东北熟女一区二区三区 | 九色91popny蝌蚪新疆 | 久久精品国产亚洲av麻豆蜜芽 | 久久精品香蕉 | 国产人妻大战黑人20p | 中国黄色大片 | 三级在线免费 | 久久婷婷一区 | 九九热精彩视频 | 国产成人啪免费观看软件 | 3344成人 | 日韩久久综合 | 午夜做爰xxxⅹ性高湖视频美国 | 理论片av| 午夜精品一区二区三区免费视频 | 又粗又大又硬毛片免费看 | 性xxxx欧美老肥妇牲乱 | 欧美黑吊大战白妞欧美大片 | 最新国产在线视频 | 青青青操 | 九九久久国产精品 | 99青青草 | 无码国产69精品久久久久同性 | 日本xxxx高清 | www.狠狠操 | 亚洲做受高潮无遮挡 | 国产99久久久国产精品成人免费 | 天天网综合 | 99在线观看精品视频 | 久草免费福利 | 老司机精品福利视频 | 日韩 国产 欧美 | 日产久久久久久 | 亚洲免费黄色片 | 精品人妻一区二区三区四区久久 | 国产日韩亚洲欧美 | 久久免费激情视频 | 欧美人与性囗牲恔配 | 超碰免费在线播放 | 欧美精品乱码视频一二专区 | 国产特黄大片aaaa毛片 | 成年人福利网站 | 超碰在线91 | 精品人妻一区二区三区四区 | 看片日韩 | 国精无码欧精品亚洲一区蜜桃 | 国产精品1区2区 | 伊伊综合网 | 99精品视频免费看 | 能免费看av的网站 | 一曲二曲三曲在线观看中文字幕动漫 | 成年人的免费视频 | 狠狠干导航 | 日本一二三区在线视频 | 国产性色视频 | 日韩欧美在线观看免费 | 亚洲春色一区二区三区 | 国产免费无码一区二区视频 | 91免费看黄| 亚洲v欧美| 精品国产一区二区三区久久久久久 | 美女黄站 | 自拍1区 | 午夜视频导航 | 狠狠人妻久久久久久 | 91青青草| 无码人妻精品一区二区三区9厂 | 日本东京热一区二区三区 | 99热亚洲 | 国产在线视频网址 | 国产簧片| 日韩三级成人 | 爆乳2把你榨干哦ova在线观看 | 黑人爱爱视频 | 亚洲午夜久久久久 | 久久久久久免费观看 | av免费天堂 | 日韩欧美高清片 | 中文字幕精品一区二区精品 | 理论片毛片 | 欧美日韩生活片 | www.插插插.com| 黑白配高清国语在线观看 | 亚洲av成人精品一区二区三区在线播放 | 亚洲男人的天堂av | 成人综合色站 | 男女拍拍拍网站 | 激情综合亚洲 | 一级黄色片免费 | 亚洲成人一区在线观看 | 日本激情一区 | 在线观看污污网站 | 久久99精品久久久久久国产越南 | 国产乱人乱精一区二视频国产精品 | 亚洲国产精品免费 | 九九热这里有精品视频 | jizz网站 |