نتایج جستجو برای: q tof ms
تعداد نتایج: 251600 فیلتر نتایج به سال:
The presence of veterinary drugs (VDs) in meat may pose a health risk to humans during consumption; therefore, monitoring of VD residues for regulatory enforcement and risk assessment is commonly conducted. Several hundred VDs are available spanning a number of classes with very different chemical characteristics. This typically requires sophisticated analytical methods and instruments, general...
ABSTRACT Non-targeted screening of drugs present in herbal products, known as "legal high" drugs and in hair as a biological matrix commonly used in toxicological investigations was accomplished with the use of high pressure liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS). In total, 25 and 14 therapeutical drugs and psychoactive substances/metaboli...
in this study, 120 aegilops crassa (mmdd genome) accessions from iran were evaluated for high molecular weight proteins. based on sds-page analysis, 17 bands were selected and mass spectrometry was used for protein identification. among 17 bands selected for maldi-tof-tof-ms analyzing, only 4 bands were identified as high molecular weight glutenin subunit similar to aegilops ventricosa and trit...
Long-term exposure to arsenic has been linked to tumorigenesis in different organs and tissues, such as skin; however, the detailed mechanism remains unclear. In this present study, we integrated "omics" including microRNAome, proteomics and metabolomics to investigate the potential molecular mechanisms. Compared with non-malignant human keratinocytes (HaCaT), twenty-six miRNAs were significant...
Clarification of the chemical composition of traditional Chinese medicine formulas (TCMFs) is a challenge due to the variety of structures and the complexity of plant matrices. Herein, an integrated strategy was developed by hyphenating ultra-performance liquid chromatography (UPLC), quadrupole time-of-flight (Q-TOF), hybrid triple quadrupole-linear ion trap mass spectrometry (Qtrap-MS), and th...
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