Detection of Organophosphorus Pesticides in Wheat by Ionic Liquid-Based Dispersive Liquid-Liquid Microextraction Combined with HPLC by Wei Liu, Ji Quan, Zeshu Hu

“…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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A Chelating Resin of EDTA-Type Modified Cross-Linking Polystyrene to Preconcentrate Trace Metals for Seawater Detection by Chao Li, Linna Duan, Mingchao Han, Hongwei He, Mengxiang Yuan, Hairong Wang

“…Compared with the conventional solvent method, the novel material and enrichment device have high preconcentration efficiency, strong anti-interference ability, and low cost and could be directly applied for routine seawater detection.…”
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Metabolite Profiling, Pharmacokinetics, and In Vitro Glucuronidation of Icaritin in Rats by Ultra-Performance Liquid Chromatography Coupled with Mass Spectrometry by Beibei Zhang, Xiaoli Chen, Rui Zhang, Fangfang Zheng, Shuzhang Du, Xiaojian Zhang

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Analysis of an Aqueous Extract from Turkish Galls Based on Multicomponent Qualitative and Quantitative Analysis Combined with Network Pharmacology and Chemometric Analysis by Ya Zeng, Lu Zhao, Meng Hao, Mirzat Maimaiti, Zhi Li, Minghui Zhang, Xuan Ma

“…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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Applying 1H NMR Spectroscopy to Detect Changes in the Urinary Metabolite Levels of Chinese Half-Pipe Snowboarders after Different Exercises by Fuqiu Wang, Jiao Han, Qing He, Zhufeng Geng, Zhiwei Deng, Decai Qiao

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A multi-objective optimization approach to optimal sensor placement of irregular LSF structures by Mohammad Reza Hamedi, Masoud Mohammadgholiha, Hamid Reza Vosoughifar, Nadia Hamedi

“…To show the efficiency of the proposed method, a very large irregular museum building, which was built by using LSF system, has been considered. …”
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Evaluation of Trace Metal Profile in Cymbopogon validus and Hyparrhenia hirta Used as Traditional Herbs from Environmentally Diverse Region of Komga, South Africa by Babalwa Tembeni, Opeoluwa O. Oyedeji, Ikechukwu P. Ejidike, Adebola O. Oyedeji

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Quantitative Analysis of Eight Triterpenoids and Two Sesquiterpenoids in Rhizoma Alismatis by Using UPLC-ESI/APCI-MS/MS and Its Application to Optimisation of Best Harvest Time and... by Yanni Tai, Fuxian Zou, Qiurong Zhang, Jia Wang, Ronghui Rao, Ruihua Xie, Shuisheng Wu, Kedan Chu, Wen Xu, Xiaoyan Li, Mingqing Huang

“…All recoveries of the 10 marker compounds ranged from 97.24% to 102.49% with RSDs less than 4.05%. The developed method efficiently determined the 10 marker compounds in RA and was subsequently applied to optimise harvest time and crude processing temperature. …”
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Validation and Discriminant Analysis of the Athens Insomnia Scale in Older Adults by Huseyin Elbi, Melike Batum, Ece Ozlem Oztürk, Merve Vatansever Balcan, Ayşin Kisabay Ak, Hikmet Yilmaz, Omer Aydemir

“…ABSTRACT Objective This study aimed to validate and discriminate the “Athens Insomnia Scale” in aged. Methods Patients were assessed using the Athens Insomnia Scale (AIS) and the Pittsburg Sleep Quality Index (PSQI). …”
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Simultaneous Analysis of Ursolic Acid and Oleanolic Acid in Guava Leaves Using QuEChERS-Based Extraction Followed by High-Performance Liquid Chromatography by Chang Xu, Yiyi Liao, Chunyan Fang, Makoto Tsunoda, Yingxia Zhang, Yanting Song, Shiming Deng

“…In this paper, a novel method of QuEChERS-based extraction coupled with high-performance liquid chromatography has been developed for the simultaneous determination of ursolic acid (UA) and oleanolic acid (OA) in guava leaves. …”
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Red Wine Age Estimation by the Alteration of Its Color Parameters: Fourier Transform Infrared Spectroscopy as a Tool to Monitor Wine Maturation Time by M. Basalekou, C. Pappas, Y. Kotseridis, P. A. Tarantilis, E. Kontaxakis, S. Kallithraka

“…The proposed method is simpler, less time consuming, and more economical and does not require chemical reagents.…”
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Simultaneous Analysis of Losartan Potassium, Amlodipine Besylate, and Hydrochlorothiazide in Bulk and in Tablets by High-Performance Thin Layer Chromatography with UV-Absorption De... by Karunanidhi Santhana Lakshmi, Sivasubramanian Lakshmi

“…The suitability of this method for quantitative determination of these compounds was by validation in accordance with the requirements of pharmaceutical regulatory standards. …”
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Development of Sensitive and Specific Analysis of Vildagliptin in Pharmaceutical Formulation by Gas Chromatography-Mass Spectrometry by Ebru Uçaktürk

“…A sensitive and selective gas chromatography-mass spectrometry (GC-MS) method was developed and fully validated for the determination of vildagliptin (VIL) in pharmaceutical formulation. …”
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Measurement of Pharmacokinetics and Tissue Distribution of Four Compounds from Nauclea officinalis in Rat Plasma and Tissues through HPLC-MS/MS by Yuhuang Wu, Liyan Li, Guxu Ming, Xinyue Ma, Changfu Liang, Yonghui Li, Xiaoning He

“…Mass spectrometric detection was performed in multiple reaction monitoring (MRM) mode utilizing electrospray ionization (ESI) in negative mode. The developed method exhibited good linearity (determination coefficients, R2 ≥ 0.9849), and the lower limits of quantification were 2, 5, 5, and 25 ng/mL for chlorogenic acid, naucleactonin C, khaephuoside A, and 3,4-dimethoxyphenyl-1-O-β-apiofuroseyl(1 ⟶ 2)-β-D-glucopyranoside. …”
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A Human Oral Fluid Assay for D- and L- Isomer Detection of Amphetamine and Methamphetamine Using Liquid-Liquid Extraction by Brian Robbins, Rob E. Carpenter, Mary Long, Jacob Perry

“…This paper presents a validated method of D- and L-isomer detection in human oral fluid from an extract used for determination of a large oral fluid assay (63 analytes) on an older AB SCIEX 4000 instrument. …”
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A Simple, Rapid, Fluorometric Assay for Dopamine by In Situ Reaction of Boronic Acids and cis-Diol by Xiaoxia Liu, Miaomiao Tian, Wenmei Gao, Jinzhong Zhao

“…An efficient, sensitive, and low-cost method has been developed for turn-on fluorescence sensing of dopamine (DA). …”
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Acylation of Chiral Alcohols: A Simple Procedure for Chiral GC Analysis by Mireia Oromí-Farrús, Mercè Torres, Ramon Canela

“…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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Strategic Combination of Isocratic and Gradient Elution for Simultaneous Separation of Polar Compounds in Traditional Chinese Medicines by HPLC by Mei-Tuo Zhang, Xiao-Xue Ye, Wei Lan, Yan-Ling Yang, Tsunghsueh Wu, Yu-Sang Li, He-Bin Tang

“…This method therefore provides a more efficient way to determine the polar components present in traditional Chinese medicines. …”
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Probabilistic performance assessment of seismically excited buildings with semi-active fluid viscous dampers by Ali Asghar Naderi, Sina Bkhshinezhad, Shahrokh Rezaei

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Optimal placement of post-tensioned self-centering yielding braced systems for braced frame structures by E. Nobahar, B. Asgarian, A. Torabi Goodarzi, O. Mercan

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