high performance liquid chromatography quadrupole time-of-flight mass spectrometry
Analysis of the metabolic properties of maintenance hemodialysis patients with glucose-added dialysis based on high performance liquid chromatography quadrupole time-of-flight mass spectrometry
... with high performance liquid chromatography quadrupole time-of-flight mass ...of liquid chromatography- tandem mass spectrometry ...
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Simultaneous untargeted and targeted metabolomics profiling of underivatized primary metabolites in sulfur-deficient barley by ultra-high performance liquid chromatography-quadrupole/time-of-flight mass spectrometry
... hand, high resolution mass spectrometry provided high selectivity for untar- geted ...rate mass measurement in complex samples, which allowed to discriminate between compounds with the ...
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Discrimination of Radix Polygoni Multiflori from different geographical areas by UPLC-QTOF/MS combined with chemometrics
... with liquid chromatog- raphy and other spectrometric methods are widely used in many fields concerning TCMs, such as the comparison of different species [18], quality control and moderniza- tion of TCM ...
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Original Article Metabolomics analysis on patients with ischemic stroke based on ultra-performance liquid chromatography with quadrupole-time-of-flight mass spectrometry
... molecular mass, the retrieval of the obtained metabolites, and the confirmation of the obtained metabolites by using the standard samples and the second- ary information of mass spectrometry provided ...
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Liquid Chromatography - Quadrupole Time-of-Flight Mass Spectrometry Analysis of Disperse Dyes for the Development of a Forensic Dye Database.
... retention time and m/z ratios for each sample to dye standards easily revealed the ...retention time and mass spectral data until all dyestuffs are analyzed via LC-Q- ...
136
“Production and Identification of Destruxins in Crude Extract of the Local Fungus Metarhizium anisopliae var anisopliae by Liquid Chromatography-Electrospray time-of-flight Mass Spectrometry” by Benserradj O, Albrieux F, Mihoubi I, Algeria.
... A modified medium was used to grow this fungus, Metarhizium anisopliae was cultured on a maltose medium containing peptone in a flask shake at 150rpm, Liu 8 reported that maltose and peptone were the best carbon and ...
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Chemical Profiling of an Antipyretic Drug, Thai Herbal Harak Formula, by Liquid Chromatography Coupled with Quadrupole Time-of-Flight Mass Spectrometry
... This study has demonstrated a convenient, rapid screening, high-throughput and reliable UHPLC-Q-TOF method for analysis of chemical profiles. Under this optimization method, nineteen chemical constituents including ...
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Ultra performance liquid chromatography quadrupole/time of flight mass spectrometry analysis of the impact of processing on toxic components of Kansui Radix
... the mass spectra and retention time with those of the reference compounds, and the others were tentatively assigned by matching the empirical molecular formula deduced by matching mass values of ...
8
Theoretical analysis of the retention behavior of pesticides and active pharmaceutical compounds in wastewater and river waters in liquid chromatography–quadrupole-time-of-flight mass spectrometry
... dependence implicitly. The statistical parameters reveal the high predictive ability of L-M ANN model. The plot of the predicted RT versus the experimental RT values by L-M ANN for training and test sets are ...
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The Use of Liquid Chromatography Quadrupole Time-of-Flight Mass Spectrometry and Metabonomic Profiling to Differentiate Between Normally Slaughtered and Dead On Arrival Poultry Meat.
... Mass spectrometry parameters An electrospray ionization source was used, and all samples were analyzed in positive and negative ...a mass range of 100-1000 m/z. The reference mass solution ...
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Application of the broadband collision-induced dissociation (bbCID) mass spectrometry approach for protein glycosylation and phosphorylation analysis
... Otherwise specified, all chemical and reagents were supplied by Sigma-Aldrich (Poole Dorset, UK) with the highest purity available. All solutions were prepared with high-performance liquid ...
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Determination of five flavonoids in different parts of Fordia cauliflora by ultra performance liquid chromatography/triple-quadrupole mass spectrometry and chemical comparison with the root of Millettia pulchra var. laxior
... The column effluent was directly introduced into a triple quadrupole mass detector operated in a positive ESI mode. Nitrogen was used as both the drying and sheath gases and the collision gas. The ESI ...
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Simultaneous determination of five azadirachtins in the seed and leaf extracts of Azadirachta indica by automated online solid-phase extraction coupled with LC–Q-TOF–MS
... with liquid chromatography/quadrupole-time-of-flight mass spectrometry (SPE-LC–Q- TOF–MS) was developed and validated for simultaneous quantification of five azadirachtins ...
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Full component analysis of Tianma-Gouteng-Yin
... Ultra-high performance liquid chromatography (UHPLC) coupled with quadrupole- tandem time-of-flight mass spectrometry (Q-TOF-MS) was used to analyze 17 ...
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STABILITY EVALUATION OF TARTRAZINE BY LIQUID CHROMATOGRAPHY DIODE ARRAY DETECTOR AND HIGH RESOLUTION ELECTRON SPRAY IONIZATION QUADRUPOLE TIME OFFLIGHT MASS SPECTROMETRY/MASS SPECTROMETRY ANALYSIS
... source conditions were: Nebulizer gas, 60 psi; dry temperature, 350°C; dry gas, 10.0 mL/minutes; capillary voltage, 4.5 kV; capillary current, 81.787 nA; vaporizer temperature, 400°C and dwell time, 200 ms. For ...
5
Simultaneous determination of various platycosides in Four Platycodon grandiflorum cultivars by UPLC-QTOF/MS
... ultra performance liquid chromatography coupled with quadrupole time‑of‑flight/ mass spectrometry (UPLC‑QTOF/MS) with an in‑house library was developed and applied ...
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Ultra performance liquid chromatography quadrupole\time of flight mass spectrometry with multivariate statistical analysis for exploring potential chemical markers to distinguish between raw and processed Rheum palmatum
... advantages over traditional phytochemical methods for identifying chemical markers, in that it avoids the re- quirement for time-consuming extraction, isolation, purification, and identification processes. Herein, ...
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68. Validated UPLC-Q-TOF-MS method for quantitative determination of emodin in rhizome of Rheum emodi Wall. ex Meissn. and its traditional polyherbal formulation using three different extraction techniques
... first time, a rapid, sensitive and high throughput ultra-performance liquid chromatography/quadrupole time-of-flight mass spectroscopy (UPLC/Q-TOF-MS) method ...
6
Feasibility of ultra-performance liquid chromatography-ion mobility-time-of-flight mass spectrometry in analyzing oxysterols
... of high importance as it facilitates getting more detailed and therefore useful information on the role of oxysterols in biological ...quantitative performance and its feasibility was successfully ...
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Matrix assisted ionisation in vacuum mass spectrometry and imaging on a modified quadrupole quadrupole time of flight mass spectrometer
... or high voltage to produce ...commercial quadrupole-quadrupole-time-of-flight mass spectrometer was modified to incorporate control of the ion source pressure and a reduced ...
10