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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
[1,1'‑Bis(diphenylphosphino)ferrocene]palladium(II) dichloride is a palladium complex containing the bidentate ligand 1,1'-bis(diphenylphosphino)ferrocene (dppf), abbreviated as [(dppf)PdCl 2]. This commercially available material can be prepared by reacting dppf with a suitable nitrile complex of palladium dichloride : [ 1 ]
Rhodium(II) acetate is the coordination compound with the formula Rh 2 (AcO) 4, where AcO − is the acetate ion (CH 3 CO − 2). This dark green powder is slightly soluble in polar solvents, including water. It is used as a catalyst for cyclopropanation of alkenes. It is a widely studied example of a transition metal carboxylate complex. [2]
An example total ion current chromatogram from an LC-MS analysis. The total ion current chromatogram (TICC) represents the summed intensity across the entire range of masses being detected at every point in the analysis. [2] [3] The range is typically several hundred mass-to-charge units or more. In complex samples, the TICC often provides ...
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 ...
In organic chemistry, an addition reaction is an organic reaction in which two or more molecules combine to form a larger molecule called the adduct. [1] [2] An addition reaction is limited to chemical compounds that have multiple bonds. Examples include a molecule with a carbon–carbon double bond (an alkene) or a triple bond (an alkyne).
Ammonium formate can be used as a mobile phase additive in high performance liquid chromatography (HPLC), and is suitable for use with liquid chromatography-mass spectrometry (LC/MS). The p K a values of formic acid and the ammonium ion are 3.8 and 9.2, respectively.
Little CMS or LCMS is an open-source color management system, released as a software library for use in other programs which will allow the use of International Color Consortium profiles. It is licensed under the terms of the MIT License. LCMS was one of the first open sourced color management systems. It was initiated by Marti Maria in 1998.