Ethyl carbamate (EC), a toxic contaminant occurring in food processing, may possess a risk to human health. To facilitate the basic study on its metabolism and applied study on its monitoring, we first established a rapid determination method of EC in human cells (HepG2) based on UPLC-TOF-MS. This method showed good linearity over a range of 60-6000 ng/mL (R2>0.99) in both extra/intra-cellular ...

Optimized reviewer assignment can effectively utilize limited intellectual resources and significantly assure review quality in various scenarios such as paper selection in conference or journal, proposal selection in funding agencies and so on. However, little research on reviewer assignment of software peer review has been found. In this study, an optimization approach is proposed based on st...

The infrared spectra of tyramine monomers trapped in low-temperature argon and xenon matrixes were recorded. The presence of the flexible ethylamino side chain gives rise to a complex conformational surface that contains several minima of relatively low energies, some of them stabilized by a weak N-H···π hydrogen bond interaction between the amino group and the phenyl ring. The experimental inf...

A peer-verified gas chromatographic (GC) method is presented for the weight percent (wt %) determination of acetochlor herbicide in technical and formulated products. During method development, the method was found to be rugged by the Youden Ruggedness Test. Two laboratories with experience in the wt % determination of acetochlor in various matrixes participated in this study. Each laboratory r...

Polyphenols have attracted attention for their anti-inflammatory, antidiabetic, and anticancer properties. Due to the antioxidant anti-inflammatory potential of these molecules, they are also proposed as a therapeutic tool prevent complications cancer decrease secondary effects conventional chemotherapeutic drugs. Nonetheless, polyphenols such flavonoids phenolic acids low bioavailability, high...

A new plaintext-related image encryption system based on the hyper-chaotic Lorenz system is proposed in this paper. In the proposed image encryption system, the hyper-chaotic Lorenz system is employed to generate six pseudo-random matrixes, where, two of them use the “add-modulus” operations to carry out the plaintext-unrelated image diffusion, and the other four matrixes are used to confuse th...

This investigation concerns the initial chemical reactions that affect the ionization of matrixes in matrix-assisted laser desorption/ionization (MALDI). The study focuses on the relaxations of photon energy that occur on a comparable time scale to that of ionization, in which the available laser energy is shared and the ionization condition is changed. The relaxations include fluorescence, fra...

This study involved comparison of different extraction and derivatization methods for determining FAs in soil and in four highly organic matrixes (cattle manure, pig slurry, compost, and vermicompost), by application of a multifactor categorical design. Although some studies have been carried out regarding the application of FA analysis to highly organic matrixes, comparison and verification ar...