Development and application of automatic magnetic solid phase extraction assisted High-resolution mass spectrometry for sensitive and rapid determination of 26 fentanyl and metabolites in urine samples [0.03%]
Wanli Li,Yang Wang,Meixiang Yu et al.
Wanli Li et al.
Over the past three decades, numerous deaths caused by the illicit use of fentanyl analogues have drawn worldwide concern. However, the detection of trace levels of fentanyl compounds remains challenging due to labor-intensive sample pretre...
Chen-Yu Zhang,Yuan Zhang,Yan-Jie Wei et al.
Chen-Yu Zhang et al.
Phenoxyacetic acid (POA) herbicides are globally utilized in agriculture for managing broad-leaved and budding weeds due to their effectiveness and cost efficiency. Nevertheless, their irrational application has been associated with residue...
A rapid and environmental-friendly method for characterization and determination of the major sesquiterpenoid constituents in the essential oil of Nardostachys jatamansi DC [0.03%]
Ruirui Wang,Heng Zhong,Jingyun Shi et al.
Ruirui Wang et al.
Essential oil is a key quality marker of Nardostachys jatamansi DC. (NJ), and is one of the main application forms of NJ alone or in a prescription with efficacies such as sedative and antiarrhythmic activities. Herein, GC/EI-MS and UPC2-QT...
Hybridization liquid chromatography-mass spectrometry for quantitative bioanalysis of oligonucleotides: The upcoming paradigm shift [0.03%]
Long Yuan
Long Yuan
Therapeutic oligonucleotides, which are short, synthetic, single- or double-stranded oligonucleotides, have been rapidly growing in drug discovery and development as a new class of modality. Major types of approved oligonucleotide therapeut...
Hollow zeolitic imidazolate framework-8 anchored on reduced graphene oxide aerogel as adsorbent of solid-phase extraction coupled with high-performance liquid chromatography for determination of ciprofloxacin in egg [0.03%]
Chunhua Li,Liuxin Xue,Mengyao Cui et al.
Chunhua Li et al.
The development of adsorbents in sample pretreatment technologies for detecting fluoroquinolone antibiotic residues remains a critical challenge in ensuring food safety. A hollow ZIF-8/reduced graphene oxide aerogel (HRA) is developed as an...
Xiang-Yu Tian,Miao-Miao Zhang,Fu-Rong Sun
Xiang-Yu Tian
Phosphodiesterase-5 (PDE-5) inhibitors are a class of drugs primarily used to treat male erectile dysfunction. Common medications include sildenafil, tadalafil, and vardenafil. However, issues such as their illegal adulteration pose signifi...
Analysis of N-methyl-2-pyrrolidone and its hydroxy metabolite at low concentration level in water samples using liquid chromatography tandem mass spectrometry [0.03%]
Ádám Tölgyesi,Carlos Gonçalves,Eszter Benes et al.
Ádám Tölgyesi et al.
N-methyl-2-pyrrolidone (NMP) is a synthetic organic compound used as a solvent in several industrial processes such as battery and cosmetics production. There are growing concerns regarding the toxicity of NMP in the environment. We present...
On the intrinsic effect of the particle size distribution on the permeability of particulate liquid chromatography columns. A theoretical overview [0.03%]
Fabrice Gritti
Fabrice Gritti
This study presents a theoretical investigation into the intrinsic influence of particle size distribution (PSD) on the permeability of packed beds in liquid chromatography columns. Using a log-normal PSD derived from experimental data on 2...
Utilization of Pinus pumila seed scales as forestry residues: Green microwave-assisted hydrodistillation for essential oil extraction and its antibacterial activity [0.03%]
Shengcheng Mi,Weichen Wang,Minghua Zhu et al.
Shengcheng Mi et al.
Pinus pumila seed scales, a commonly discarded forestry residue, were utilized in this study as a raw material for essential oil (PSEO) extraction using microwave-assisted hydrodistillation (MAH). Compared with conventional hydrodistillatio...
Magnetic MON@COF composites for efficient detection of NSAIDs from water [0.03%]
磁性MOFs复合材料高效检测水中的NSAIDs
Wei Zhao,Shijie Huang,Wenjie Liu et al.
Wei Zhao et al.
The presence of residual non-steroidal anti-inflammatory drugs (NSAIDs) in environmental water bodies has garnered increasing concern. In this study, two magnetic microporous organic networks (MONs) were synthesized by integrating them with...