AIMC Topic: Mass Spectrometry
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Design and validation of an automated solid phase extraction liquid chromatography coupled mass spectrometry method for the quantification of propofol in plasma.
Journal of pharmaceutical and biomedical analysis
Dec 21, 2017
Propofol concentration in human plasma can be quantified by liquid chromatography coupled mass spectrometry. Sample preparation usually requires solid phase extraction to remove matrix components and enrich the analyte. To facilitate user-independent...
Advancing the large-scale CCS database for metabolomics and lipidomics at the machine-learning era.
Current opinion in chemical biology
Nov 12, 2017
Metabolomics and lipidomics aim to comprehensively measure the dynamic changes of all metabolites and lipids that are present in biological systems. The use of ion mobility-mass spectrometry (IM-MS) for metabolomics and lipidomics has facilitated the...
Systematic evaluation of bioactive components and antioxidant capacity of some new and common bayberry cultivars using an in vitro gastrointestinal digestion method.
Food research international (Ottawa, Ont.)
Oct 31, 2017
This study was aimed to investigate the impact of in vitro gastrointestinal digestion on some common and new bayberry cultivars. The contents of total phenolics (246-669mg gallic acid equivalents/kg FW (fresh weight)), flavonoids (116-689mg quercetin...
Benzothiazoles
Sulfonic Acids
Chlorides
Reactive Oxygen Species
Fruit
Phenols
Antioxidants
Ferric Compounds
Caco-2 Cells
Mass Spectrometry
Digestion
Gastric Acid
Principal Component Analysis
Dose-Response Relationship, Drug
Humans
Intestinal Secretions
Oxidation-Reduction
Oxidative Stress
Myrica
Chromatography, High Pressure Liquid
Rapid determination of ultra-trace plutonium isotopes (Pu, Pu and Pu) in small-volume human urine bioassay using sector-field inductively coupled plasma mass spectrometry.
Analytica chimica acta
Oct 17, 2017
A rapid method with enhanced U decontamination was developed for ultra-trace Pu analysis in small-volume urine bioassays. This method consists of acid digestion, co-precipitation, extraction chromatography and sector-field inductively coupled plasma ...
Hyperspectral Imaging and Support Vector Machine: A Powerful Combination to Differentiate Black Cohosh (Actaea racemosa) from Other Cohosh Species.
Planta medica
Oct 6, 2017
(black cohosh) has a history of traditional use in the treatment of general gynecological problems. However, the plant is known to be vulnerable to adulteration with other cohosh species. This study evaluated the use of shortwave infrared hyperspect...
Development and assessment of a lysophospholipid-based deep learning model to discriminate geographical origins of white rice.
Scientific reports
Aug 17, 2017
Geographical origin determination of white rice has become the major issue of food industry. However, there is still lack of a high-throughput method for rapidly and reproducibly differentiating the geographical origins of commercial white rice. In t...
Machine Learning on Signal-to-Noise Ratios Improves Peptide Array Design in SAMDI Mass Spectrometry.
Analytical chemistry
Aug 7, 2017
Emerging peptide array technologies are able to profile molecular activities within cell lysates. However, the structural diversity of peptides leads to inherent differences in peptide signal-to-noise ratios (S/N). These complex effects can lead to p...
Combination of mass spectrometry-based targeted lipidomics and supervised machine learning algorithms in detecting adulterated admixtures of white rice.
Food research international (Ottawa, Ont.)
Aug 4, 2017
The mixing of extraneous ingredients with original products is a common adulteration practice in food and herbal medicines. In particular, authenticity of white rice and its corresponding blended products has become a key issue in food industry. Acco...
Detection of lithospermate B in rat plasma at the nanogram level by LC/MS in multi reaction monitoring mode.
Journal of food and drug analysis
Jul 8, 2017
Low bioavailability and high binding affinity to plasma proteins led to the difficulty for the quantitative detection of lithospermate B (LSB) in plasma. This study aimed to develop a protocol for detecting LSB in plasma. A method was employed to qua...
Prediction of Collision Cross-Section Values for Small Molecules: Application to Pesticide Residue Analysis.
Analytical chemistry
Jun 7, 2017
The use of collision cross-section (CCS) values obtained by ion mobility high-resolution mass spectrometry has added a third dimension (alongside retention time and exact mass) to aid in the identification of compounds. However, its utility is limite...
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