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Mass spectrometry is a scientific technique for measuring the mass-to-charge ratio of ions. It is often coupled to chromatographic techniques such as gas-or liquid chromatography and has found widespread adoption in the fields of analytical chemistry and biochemistry where it can be used to identify and characterize small molecules and proteins ().
Ion suppression in LC-MS and LC-MS/MS refers to reduced detector response, or signal:noise as a manifested effect of competition for ionisation efficiency in the ionisation source, between the analyte(s) of interest and other endogenous or exogenous (e.g. plasticisers extracted from plastic tubes, [1] mobile phase additives) species which have not been removed from the sample matrix during ...
Los Angeles Times Magazine was started in 1985. [4] [5] As with West, the magazine was a weekly supplemental to the Sunday edition of the Los Angeles Times newspaper. In 2006, the Los Angeles Times announced it was resurrecting West magazine, edited by Rick Wartzman, with writer Amy Tan as the literary editor. West replaced the Los Angeles ...
These are the results of an overall review of the syndicated comics that The Times publishes, which we promised to readers after printing a “9 Chickweed Lane” strip Dec. 1 that contained an ...
A Swedish daily newspaper in broadsheet format, 1980. Newspaper formats vary substantially, with different formats more common in different countries. The size of a newspaper format refers to the size of the paper page; the printed area within that can vary substantially depending on the newspaper. [1]
The most important formate ester is methyl formate, which is produced as an intermediate en route to formic acid. Methanol and carbon monoxide react in the presence of a strong base, such as sodium methoxide: [1] CH 3 OH + CO → HCOOCH 3. Hydrolysis of methyl formate gives formic acid and regenerates methanol: HCOOCH 3 → HCOOH + CH 3 OH
The person responsible for operating the newspaper was officially called the president and general manager, [2] but he was casually referred to as the publisher. [3] The official list of past publishers offered by the Times in both print and electronic versions begins with Harrison Gray Otis in 1882, [4] but Otis never held that title ...
Citation template for entries from The Times, following the format used in The Times Index Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Article name articlename title Title of the article Example The spelling of Kenya Line required Author author Author of the article, including the first name or initials ...