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5121
Environmental Sample Stability for Pharmaceutical Compound Analysis: Handling and Preservation Recommendations
Published 2023-01-01“…This study explores a method for preserving water samples during transport before quantitative analysis. …”
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5122
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5123
Quantitative Analysis of Panax ginseng by FT-NIR Spectroscopy
Published 2014-01-01“…Near-infrared spectroscopy (NIRS), a rapid and efficient tool, was used to determine the total amount of nine ginsenosides in Panax ginseng. …”
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5124
Rapid Quality Identification of Decoction Pieces of Crude and Processed Corydalis Rhizoma by Near-Infrared Spectroscopy Coupled with Chemometrics
Published 2021-01-01“…These methods can greatly improve the efficiency of traditional Chinese medicine analysis and provide a strong scientific basis for the quality identification and control of traditional Chinese medicine.…”
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5125
Compound Specific Extraction of Camptothecin from Nothapodytes nimmoniana and Piperine from Piper nigrum Using Accelerated Solvent Extractor
Published 2014-01-01“…CPT and piperine were determined and quantified by using a simple and efficient UFLC-PDA (245 and 343 nm) method. …”
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5126
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5127
Analysis of an Aqueous Extract from Turkish Galls Based on Multicomponent Qualitative and Quantitative Analysis Combined with Network Pharmacology and Chemometric Analysis
Published 2024-01-01“…Statistical analysis revealed significant differences in the content of these 4 components across 14 batches of TG, with GA and PEGG identified as the primary contributors to the variations. This study determined a quality index for TG, providing a reference for quality evaluation and introducing a cost-effective and efficient quality control method. …”
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5128
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5129
Catalase-Based Modified Graphite Electrode for Hydrogen Peroxide Detection in Different Beverages
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5130
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5131
A Simple, Rapid, Fluorometric Assay for Dopamine by In Situ Reaction of Boronic Acids and cis-Diol
Published 2019-01-01“…An efficient, sensitive, and low-cost method has been developed for turn-on fluorescence sensing of dopamine (DA). …”
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5132
Quantitative Measurement of Plasma Free Metanephrines by a Simple and Cost-Effective Microextraction Packed Sorbent with Porous Graphitic Carbon and Liquid Chromatography-Tandem Ma...
Published 2021-01-01“…The analytes were well resolved, and potential interferences (54 substances) were investigated. This method was linear from 24.7–2717 pg/mL for metanephrine (MN) and 24.5–4010 pg/mL for normetanephrine (NMN) with a coefficient of determination (R2) higher than 0.994. …”
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5133
Acylation of Chiral Alcohols: A Simple Procedure for Chiral GC Analysis
Published 2012-01-01“…The best resolutions were obtained with 2-pentyl acetates (α=3.00) and 2-hexyl acetates (α=1.95). This method provides a very simple and efficient experimental workup procedure for analyzing chiral alcohols by chiral-phase GC.…”
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5134
Preparation of Imazethapyr Surface Molecularly Imprinted Polymers for Its Selective Recognition of Imazethapyr in Soil Samples
Published 2018-01-01“…The results showed that good linearity was observed in the range of 0.10–5.00 μg/mL, with a correlation coefficient of 0.9995. The limit of detection (LOD) of this method was 15 ng/g, and the extraction recoveries of imazethapyr from real samples were in the range of 91.1–97.5%, which proved applicable for analysis of trace imazethapyr in soils. …”
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5135
Identifying and validating the dimensions and components of improving the medical education system in the implementation of online curricula
Published 2024-12-01“… Background: The current research was conducted with the aim of identifying and validating the dimensions and components of online curriculum implementation. Methods: The research was conducted with a mixed approach. …”
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5136
Detection of Organophosphorus Pesticides in Wheat by Ionic Liquid-Based Dispersive Liquid-Liquid Microextraction Combined with HPLC
Published 2018-01-01“…It was found that the use of 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([OMIM][Tf2N]) had both high enrichment efficiency and appropriate extraction recovery. Finally, the method was used for the determination of three wheat samples, and the recoveries of them were 74.8–112.5%, 71.8–104.5%, and 83.8–115.5%, respectively. …”
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5137
The Application of Green-Synthesis-Derived Carbon Quantum Dots to Bioimaging and the Analysis of Mercury(II)
Published 2019-01-01“…The sensor exhibited a linear range for Hg2+ of 0.50–20 μM, with an excellent coefficient of determination (R2 = 0.9966) and limit of detection (12.4 nM). …”
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5138
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5139
Stability and vibration analyses of tapered columns resting on one or two-parameter elastic foundations
Published 2014-12-01“…In order to demonstrate the accuracy and the efficiency of presented method, several numerical examples including in the free-vibration and buckling analysis of non-prismatic columns, portal frame, and gable frame are presented and obtained results compared with the results of other available numerical and theoretical approaches. …”
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5140
Strategic Combination of Isocratic and Gradient Elution for Simultaneous Separation of Polar Compounds in Traditional Chinese Medicines by HPLC
Published 2018-01-01“…This method therefore provides a more efficient way to determine the polar components present in traditional Chinese medicines. …”
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