To visualize pectic compounds, sections were stained in 0.005% ruthenium red for 5 min [ 24]; to visualize cell wall fortifications with phenolic compounds, a solution of 0.01% safranin O in 50% ethanol was used and samples were stained for 3 min [ 27].
Chemical oxygen demand (COD) value is a useful measure of water quality that indicates the oxygen concentration required to oxidize all carbon compounds in a solution and is commonly used as an indirect measure of the amount of organic compounds present in wastewater.
Alloy, metallic substance composed of two or more elements, as either a compound or a solution.
General procedure for compounds 7: A solution of 1 or 2 in THF (1 mL) was added to a solution of 1 equiv of ketene 3 or 4 in THF (5 mL) at 20 °C.
S ynthesis of compound 8: A solution of tetrabutylammonium fluoride (1.0 m) in THF (0.65 mL) was added to a solution of benzylphospho-4,6 O-benzylidene-Mur NAc- l-Ala-OTMSE (12) (0.45 g, 0.56 mmol) in dry THF (28 mL) at 0 °C.
General procedure for compounds 5: A solution of 1 or 2 in THF (1 mL) was added to a solution of 1 equiv of ketene 3 or 4 in THF (5 mL) at 20 °C. 1 equiv of of DBU in THF (1 m) was added dropwise, and the resulting reaction mixture was stirred for 5 30 min, during which time it was monitored by P NMR spectroscopy.
Measurements over the OTFT devices fabricated from these sandwich compounds by a solution-based quasi Langmuir Shäfer (QLS) method reveal their ambipolar semiconductor nature associated with suitable HOMO and LUMO energy levels.
Moreover, the concentration of the probe compounds in solution is a critical parameter also for the SPME analysis since the simultaneous adsorption of multiple components in excessive amounts could cause saturation of the fiber which would lead to the consequent uncorrected quantification of the adsorption.
Hydrometallurgy is concerned with the selective leaching of metallic compounds to form a solution from which the metals can be precipitated and recovered.
The experimental data are obtained for a rutile compound synthesized via a solution technique and characterized by a morphology corresponding to spherical particles made of a large number of very thin nanorods 20 nm thick.
As we known, oxidative demethylation of compound 10 in a solution of cerium(IV) ammonium nitrate (CAN) afforded the mixture of 13 and its positional isomer [2, 14].
