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Chemiluminescence in aqueous system is mainly caused by redox reactions. [4] Chemiluminescence after a reaction of hydrogen peroxide and luminol. Luminol in an alkaline solution with hydrogen peroxide in the presence of iron or copper, [5] or an auxiliary oxidant, [6] produces 3-aminophtalate in an excited state, which exhibits ...
The sensitivity of the reagent may become altered after the recommended time period. [11] Microtox Osmotic Adjustment Solution (MOAS) is a nontoxic solution that is made up of 22% sodium chloride and ultra-pure water. This solution is added to a sample to adjust the osmotic pressure to approximately 2% NaCl. [11]
the central organic synthesis reagent for hydroboration Dicyclohexylcarbodiimide: an organic compound; primary use is to couple amino acids during artificial peptide synthesis Diethyl azodicarboxylate: a valuable reagent but also quite dangerous and explodes upon heating Diethyl ether: organic compound; a common laboratory solvent Dihydropyran
Electrochemiluminescence or electrogenerated chemiluminescence (ECL) is a kind of luminescence produced during electrochemical reactions in solutions. In electrogenerated chemiluminescence, electrochemically generated intermediates undergo a highly exergonic reaction to produce an electronically excited state that then emits light upon relaxation to a lower-level state.
Molecular models of the different molecules active in Piranha solution: peroxysulfuric acid (H 2 SO 5) and hydrogen peroxide (H 2 O 2). Piranha solution, also known as piranha etch, is a mixture of sulfuric acid (H 2 SO 4) and hydrogen peroxide (H 2 O 2). The resulting mixture is used to clean organic residues off substrates, for example ...
The main difference between solution (1) and solution (2) is the different use of nitrate-nitrogen and ammonium-nitrogen based stock solutions to prepare the respective Hoagland solution of interest. Accordingly, the original 1933 and the modified concentrations of 1938 and 1950 for each essential element and sodium are shown below, the ...
Guaiacol is also a useful reagent for the quantification of peroxidases, as in the presence of hydrogen peroxide these enzymes will catalyse with it the formation of tetraguaiacol, [14] a coloured compound that can be quantified by its absorbance at 420–470 nm, following the equation: 4 guaiacol (colorless) + 2 H 2 O 2 → tetraguaiacol ...
Tebbe's reagent is the organometallic compound with the formula (C 5 H 5) 2 TiCH 2 ClAl(CH 3) 2. It is used in the methylidenation of carbonyl compounds, that is it converts organic compounds containing the R 2 C=O group into the related R 2 C=CH 2 derivative. [ 1 ]