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A laboratory tabletop centrifuge. DNA is precipitated by first ensuring that the correct concentration of positive ions is present in solution (too much will result in a lot of salt co-precipitating with DNA, too little will result in incomplete DNA recovery) and then adding two to three volumes of at least 95% ethanol.
The third season, which debuted on January 9, 2019, was hosted by comedians Jo Se-ho & Nam Chang-hee and ZE:A's Hwang Kwang-hee. On February 12, 2020, it was announced that Jo Se-ho and Nam Chang-hee would leave their hosting roles, and there would be special MCs recruited to join Hwang Kwang-hee in hosting each episode, starting from the ...
Elephant toothpaste reaction Two people watching the reaction of Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1]
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Mamamoo — Strong Girl Bong-soon OST 2017 "Egotistic" (너나해) Mamamoo: Kim Do-hoon Park Woo-sang Red Moon: 2018 "Emotion" Mamamoo: Moon Byul-yi Cosmic Sound Cosmos Melting: 2016 [12] "Finally" Mamamoo: Moon Byul-yi Cosmic Sound Cosmic Girl Purple: 2017 [9] "Friday Night" (금요일밤) Mamamoo & Junggigo: Moon Byul-yi Park Woo-sang Melting ...
This is a list of awards and nominations received by Mamamoo, a South Korean girl group formed in 2014 by Rainbow Bridge World. They have won various awards including 5 MAMA Awards , 3 Melon Music Awards , 4 Golden Disc Awards , 4 Seoul Music Awards and 6 Soribada Best K-Music Awards .
In the laboratory, this compound is used in complexometric titrations. A variant of NTA is used for protein isolation and purification in the His-tag method. [10] The modified NTA is used to immobilize nickel on a solid support. This allows purification of proteins containing a tag consisting of six histidine residues at either terminus. [11]
In the laboratory, lauric acid may be used to investigate the molar mass of an unknown substance via the freezing-point depression. The choice of lauric acid is convenient because the melting point of the pure compound is relatively high (43.8 °C). Its cryoscopic constant is 3.9 °C·kg/mol. By melting lauric acid with the unknown substance ...