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Dichlorofluorescein (DCF) is an organic dye of the fluorescein family, being substituted at the 2 and 7 positions by chloride. It is used as an indicator for argentometry by Fajans method. [1] [2] When used as an indicator, upon reaching the equivalence point of a titration reaction the color shifts from colorless towards a faint pink.
DCF may refer to: Medical. Data clarification form in clinical trials; Dénomination Commune Française, a formal French generic name for a drug; Organizations
Specifically, to count as a legitimate view, a user must intentionally initiate the playback of the video and play at least 30 seconds of the video (or the entire video for shorter videos). Additionally, while replays count as views, there is a limit of 4 or 5 views per IP address during a 24-hour period, after which point, no further views ...
The number of CEO departures at publicly traded U.S. firms also hit a record high, climbing to 327 in the first 11 months of 2024, up from 300 in all of 2023.
Douglas Dorsey worked on the shop floor at Boeing as an engineer for over 30 years. He said problems began in the late 1990s during a merger.
Two people are dead after a plane crashed into a building near the Daniel K. Inouye International Airport in Honolulu, according to reports. At around 3:15 p.m. local time on Tuesday, Kamaka Air ...
Psy's video remained the most-liked on YouTube for nearly four years until August 27, 2016, when Wiz Khalifa's "See You Again" featuring Charlie Puth surpassed it with 11.21 million likes. Less than a year later, on July 25, 2017, Luis Fonsi 's " Despacito " featuring Daddy Yankee claimed the top spot with 16.01 million likes.
President-elect Donald Trump has filed to oppose the upcoming U.S. ban of TikTok, asking the Supreme Court for time to resolve the legal issue when he takes office next year.