Stability of 2-alkylcyclobutanones in irradiated retort pouch <i>gyudon</i> topping during room temperature storage (2)

Determination of 2-alkylcyclobutanones with electronic impact and chemical ionization gas chromatography/mass spectrometry (GC/MS) in irradiated foods.

The use of a column containing 60 g of silica gel for cleanup and the use of isobutane as a reactant reagent for chemical ionization-mass spectrometric analysis of the saturated and monounsaturated alkyl side-chain 2-alkylcyclobutanones (2-ACBs; specifically induced by irradiation from fat in foods until the proof of contrary) has improved both the sensibility and the selectivity of the method ...

The effect of room-temperature storage on the stability of compounds in DMSO.

The stability of approximately 7200 compounds stored as 20-mM DMSO solutions under ambient conditions was monitored for 1 year. Compound integrity was measured by flow injection analysis using positive and negative electrospray ionization mass spectrometry. Each sample was assessed at the beginning of the study, after 12 months of storage, and at a randomized time point between the initial and ...

Stability of meropenem in normal saline solution after storage at room temperature.

The bactericidal activity of meropenem is determined by the time that concentrations in tissue and serum are above the MIC for the pathogens during the dosing interval. Thus, the most effective mode of administering of meropenem is continuous infusion. However, the stability of meropenem reconstituted in solution is influenced by the storage temperature. Until now we have had no data to evaluat...

Thermoluminescent processes of MgAl2O4 irradiated at room temperature.

Synthesis of TiO2 nanoparticles in pure 2-hydroxyethylammonium formate room temperature ionic liquid and investigation of its photocatalytic properties

TiO2 nanoparticles were synthesized by modified sol—gel method using pure room temperature ionic liquid(RTIL) 2-hydroxyethylammonium formate as a reaction medium. The structure and morphology of TiO2nanoparticles were characterized with X-ray powder diffraction (XRD), BET surface analysis and scanningelectron microscopy (SEM). TiO2 nanoparticles were synthesized in open and closed vessels. The ...