Dual Wavelength RP-HPLC Method for Simultaneous Determination of Two Antispasmodic Drugs: An Application in Pharmaceutical and Human Serum by Najmul Hasan, Mathurot Chaiharn, Sauleha Khan, Hira Khalid, Nawab Sher, Farhan Ahmed Siddiqui, Muhammad Zain Siddiqui

“…Mobile phase ingredients consist of Acetonitrile : buffer : sulfuric acid 0.1 M (50 : 50 : 0.3 v/v/v), at flow rate 1.0 mL/min using a Hibar μBondapak ODS C18 column monitored at dual wavelength of 266 nm and 205 nm for phloroglucinol and trimethylphloroglucinol, respectively. …”
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Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka by Pravash Tiwari, Jason Blake Cohen, Lingxiao Lu, Shuo Wang, Xiaolu Li, Luoyao Guan, Zhewen Liu, Zhengqiang Li, Kai Qin

“…Our daily high-resolution findings reveal smaller black carbon cores and spatially variable morphology dominate both regions. Column loadings reveal higher black carbon mass in Dhaka, while higher total aerosol mass and number are observed in Xuzhou. …”
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QuEChERS Method Followed by Solid Phase Extraction Method for Gas Chromatographic-Mass Spectrometric Determination of Polycyclic Aromatic Hydrocarbons in Fish by Mona Khorshid, Eglal R. Souaya, Ahmed H. Hamzawy, Moustapha N. Mohammed

“…PAHs were separated on a GCMS with HP-5ms Ultra Inert GC Column (30 m, 0.25 mm, and 0.25 µm). Mean recovery ranged from 56 to 115%. …”
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Bernese Periacetabular Osteotomy in a Hip Extra-Articular Resection Followed by Reconstruction Using an Extracorporeal Irradiated Acetabulum Autograft with Megaprosthesis, for Prox... by Victor Barro, Roberto Velez, Daniel Pacha, Jordi Giralt, Isabel Roca, Marius Aguirre

“…Extra-articular resection of the hip using a periacetabular osteotomy technique enabled us to achieve wide margins and leave an intact posterior column to optimize acetabular reconstruction stability. …”
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Spatial Variations in PAHs and Nitro-PAHs Bound to Total Suspended Solids in Urban Locations in Taiwan by Hsin-Chieh Kung, Bo-Wun Huang, Justus Kavita Mutuku, Guo-Ping Chang-Chien

“…Analysis was performed using a gas chromatograph tandem mass spectrometer (GC-MS/MS) Agilent 7890A GC, USA, equipped with a ZB-EPA-EU 30 m × 0.25 mm × 0.20 µm, column (Agilent, J&W, USA), coupled to Waters Xevo TQ-S (Waters, UK). …”
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Quantitative Determination of 7 Saikosaponins in Xiaochaihu Granules Using High-Performance Liquid Chromatography with Charged Aerosol Detection by Aoxue Liu, Tongtong Xu, Wenning Yang, Dandan Zhou, Yiwei Sha

“…The saikosaponins were purified on an SPE cartridge and determined on a Waters CORTECTS C18 column (4.6 mm × 150 mm, 2.7 μm) by gradient elution using 0.01% acetic acid aqueous solution and acetonitrile. …”
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Qualitative and Quantitative Characterization of Monosaccharide Components of Salvia miltiorrhiza, Liguspyragine Hydrochloride, and Glucose Injection by Fa-huan Ge, Xian-peng Ma, Jin-fang Ma, Chang-qiong Bi, Tian-ling Chen, Xiang-dong Zhang, Xue Xiao

“…Separation was performed on a Phenomenex Luna C18 analytical column (250 mm × 4.6 mm i.d., 5 μm, AccuStandard Inc., USA) at 30°C. …”
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Coupling Solvent Extraction Units to Cyclic Adsorption Units by Mariana Busto, Enrique Eduardo Tarifa, Carlos Román Vera

“…When extracting the acid with methanol in a spray column, feed = 4 L min−1, solvent = 80 L min−1, feed impurity level 140 mmol L−1, and extract concentration 7.6 mmol L−1, the raffinate reaches a purity of 1.2 mmol L−1, the solvent being regenerated cyclically in the adsorber (364 kg) to an average of 0.7 mmol L−1. …”
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Optimizing Extraction, Evaluating Antioxidant Activity, and Analyzing Bioactive Compounds in Trikaysornmas Formula by Suphatson Limsakul, Orawan Monthakantirat, Yaowared Chulikhit, Juthamart Maneenet, Charinya Khamphukdee, Yutthana Chotritthirong, Achiraya Phasomsap, Chantana Boonyarat, Supawadee Daodee

“…For the analysis of active constituents in the formula, gallic acid, kaempferol-3-o-glucoside, imperatorin, vitexin, and scopoletin, a validated reversed-phase column high-performance liquid chromatography (HPLC) method was developed. …”
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Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurf... by Lidi Gao, Naoki Kano, Yuichi Sato, Chong Li, Shuang Zhang, Hiroshi Imaizumi

“…In addition, the removal/recovery process of heavy metals (Pb, Cr, and Ni) from the polluted sludge was studied with biosurfactant (saponin and sophorolipid) elution by batch and column experiments to evaluate the efficiency of biosurfactant for the removal of heavy metals. …”
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Preliminary Assessment of Methane Concentration Variation Observed by GOSAT in China by Xiuchun Qin, Liping Lei, Zhonghua He, Zhao-Cheng Zeng, Masahiro Kawasaki, Masafumi Ohashi, Yutaka Matsumi

“…Atmospheric column-averaged methane (XCH4) observations from GOSAT are analyzed to study the spatiotemporal variation of XCH4 in China. …”
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Charge heterogeneity of therapeutic monoclonal antibodies by different cIEF systems: views on the current situation by Alessandro Ascione, Marcello Belfiore, Jaana Vesterinen, Mihaela Buda, Wolf Holtkamp, Francesca Luciani

“…Here, we discuss the results of an analysis of a panel of antibody products by conventional and whole-column imaging cIEF systems performed as part of European Pharmacopoeia activities related to development of “horizontal standards” for the quality control of monoclonal antibodies (mAbs). …”
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Shield Cutting Pile-Group Implementation Effects on the Superstructure by Chi Zhang, Shiju Ma, Yuancheng Guo, Mingyu Li, Kui Fu

“…At the same time, because of the low angle between the longitudinal axis of the masonry structure and the tunnel axis (22°) and the positive effect of the ring beam and column of the structure in the building, it is clear that the construction of this project has little effect on the upper building, thus showing improved control.…”
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Thiazolidinone Steroids Impregnated Polyurethane Foams as a Solid Phase Extractant for the Extraction and Preconcentration of Cadmium(II) from Industrial Wastewater by Mohammad S. Tawfiq Makki, R. Mohammady Abdel-Rahman, K. Ommar Alfooty, Mohammad S. El-Shahawi

“…Compound II treated PUFs sorbent was successfully packed in glass column for complete extraction and / or determination of trace concentrations of cadmium(II) in wastewater samples with satisfactory recovery (95±2.6). …”
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Simultaneous Determination of Five Chromones of Radix Saposhnikoviae Extract in Rat Plasma by UPLC-MS/MS: Application to a Comparative Pharmacokinetic Study in Normal and Febrile R... by Li Meng, Hui Gao, Bin Chen, Peng-peng Liu, Guo-shun Shan, Fan Zhang, Tian-zhu Jia

“…The Waters Acquity UPLC BEH C18 (50 mm × 2.1 mm, 1.7 μm) was used as the chromatographic column, 0.1% formic acid water and 0.1% formic acid acetonitrile comprised the mobile phases, and all samples were determined under positive ion mode. …”
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Ultrasonic-Assisted Thymol and Carvacrol Extraction from Za’atar Leaves Using Cold-Pressed Sesame Oil by Noyal Aweidah, Hani Naseef, Ramzi Muqdi, Mohammad A. Farraj

“…In addition, a high-performance liquid chromatography (HPLC) analytical method was developed by using a C8 column and 0.05% trifluoroacetic acid as a buffering agent. …”
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Development and Validation of UPLC-MS/MS Method for Determination of Enasidenib in Rat Plasma and Its Pharmacokinetic Application by Shuang-long Li, Yong-liang Zhu, Yi Zhang, Shu-han Liu, Xiang-die Wang, Xiang-jun Qiu

“…We used the Acquity UPLC BEH C18 column to separate enasidenib and IS. Under the positive ion electrospray ionization (ESI) source conditions, the mass transfer pairs of enasidenib were monitored by multiple reaction monitoring (MRM) to be m/z 474.2 ⟶ 456.1 and m/z 474.2 ⟶ 267.0, and the IS mass transfer pairs were m/z 285.0 ⟶ 154.0. …”
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Research on the Characteristics of Coal Bump and Monitoring and Early Warning in Hujiahe Coal Mine by Fei Yu, Tong Zhang, Zhen Wei

“…The bearing capacity of the coal sample decreases rapidly during the accelerated development period. (2) According to the simulation and field monitoring, it is known that 0~100 m in front of the coal mining face belongs to the key monitoring area. (3) With the advancement of the working face, different coal pillar widths have obvious effects on the vertical stress, and stress increase and decrease zones appear on both sides of the coal column, and the peak stress shows the characteristics of increasing first and then decreasing with the advancement of the working face. …”
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NEWS You Can Use— Helping Older Adults Make Informed Food Choices by Chih-Cheng Lu, Sarah Francis

“…Descriptive statistics and chi-square tests were employed for sociodemographic analysis, while z-tests with Bonferroni correction compared column proportions. Respondents were primarily female (64.5%), aged 60-69 (52.1%). …”
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A High-Throughput Size Exclusion Chromatography Method to Determine the Molecular Size Distribution of Meningococcal Polysaccharide Vaccine by Imran Khan, K. M. Taufiqur Rahman, S. M. Saad Us Siraj, Mahbubul Karim, Abdul Muktadir, Arpan Maheshwari, Md Azizul Kabir, Zebun Nahar, Mohammad Mainul Ahasan

“…The analyses were performed on a XK16/70 column packed with sepharose CL-4B with six different batches of Ingovax® ACWY, a meningococcal polysaccharide vaccine produced by Incepta Vaccine Ltd., Bangladesh. …”
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