Validation of Simultaneous Quantitative Method of HIV Protease Inhibitors Atazanavir, Darunavir and Ritonavir in Human Plasma by UPLC-MS/MS by Tulsidas Mishra, Pranav S. Shrivastav

“…The sample pretreatment consisted of solid phase extraction of analytes and their deuterated analogs as internal standards from 50 μL human plasma. Chromatographic separation of analytes was performed on Waters Acquity UPLC C18 (50 × 2.1 mm, 1.7 μm) column under gradient conditions using 10 mM ammonium formate, pH 4.0, and acetonitrile as the mobile phase. …”
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Fast and Simple LC-MS/MS Method for Rifampicin Quantification in Human Plasma by Žane Temova Rakuša, Robert Roškar, Anita Klančar Andrejc, Tina Trdan Lušin, Nataša Faganeli, Iztok Grabnar, Aleš Mrhar, Albin Kristl, Jurij Trontelj

“…The plasma samples containing rifampicin and isotopically labelled internal standard rifampicin D8, were cleaned up using a Captiva ND Lipids filtration plate. …”
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A Unique Source for Innovative Longitudinal Research: The POPLINK Database by Annika Westberg, Elisabeth Engberg, Sören Edvinsson

“…POPLINK allows for a large array of longitudinal studies, such as social mobility, migration, fertility, mortality, civil status, kinship relations, diseases, disability and causes of death. International standards of occupations (HISCO) and diseases (ICD-10) have been applied, facilitating comparability. …”
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Ion suppression correction and normalization for non-targeted metabolomics by Iqbal Mahmud, Bo Wei, Lucas Veillon, Lin Tan, Sara Martinez, Bao Tran, Alexander Raskind, Felice de Jong, Yiwei Liu, Jibin Ding, Yun Xiong, Wai-kin Chan, Rehan Akbani, John N. Weinstein, Chris Beecher, Philip L. Lorenzi

“…Here we report a method, the IROA TruQuant Workflow, that uses a stable isotope-labeled internal standard (IROA-IS) library plus companion algorithms to: 1) measure and correct for ion suppression, and 2) perform Dual MSTUS normalization of MS metabolomic data. …”
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Modern features of the cryptocurrency use for terrorist financing, money laundering and other unlawful activities: prospective countermeasures by D. S. Melnyk

“…The author identifies the need to complete the process of legislative definition of the status and regulation of cryptocurrency circulation; to improve the national system of countermeasures, to establish coordination of the work of authorised state bodies; to ensure the implementation of international standards; to establish public-private partnership and cooperation between competent entities of Ukraine and foreign countries.…”
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Quantification and identification of microfibers released from textiles during simulated accelerated washing by João Pinto da Costa, Ana Costa, Andréa Marinho, Alcina Pimenta, Ana Paula Fonte, Ana L. Patrício Silva, António José Fernandes, Florinda M. Costa, Damià Barceló, Lúcia H.M.L.M. Santos, Armando Duarte, Teresa Rocha-Santos

“…As such, in this work, fibers from different fabrics were subjected to a simulated accelerated washing process to determine the release of microfibers into the resulting water following established and defined international standards. Though there are numerous examples of scientific works delving into this subject, the present work constitutes an initial step towards the use of internationally recognized methodologies for the determination of microfibers during washing processes that, when in conjunction with other similarly carried out works, may contribute to a better understanding of the mechanisms of release of these materials during everyday activities, such as washing and drying of clothes. …”
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Non-discrimination and equality in healthcare: guarantees of implementation in international law and Ukrainian legislation by Blashchuk T.

“…The author emphasises the need to harmonise national legislation with international standards, which will contribute to the creation of an inclusive healthcare system. …”
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The Impact of Oil and Gas Resources In the Arctic on the Development of the Transport System in the Region by V. I. Salygin, I. A. Guliyev, A. O. Khubaeva

“…The current state of the port system, which does not fully meet the latest international standards, is of crucial importance as well. …”
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Long-Term Stability of Hydromorphone in Human Plasma Frozen at −20°C for Three Years Quantified by LC-MS/MS by Andreas Wehrfritz, Stefanie Schmidt, Harald Ihmsen, Jürgen Schüttler, Christian Jeleazcov

“…Blood samples were disposed using solid-phase extraction with an additional substitution of stable isotope labelled hydromorphone as an internal standard. Hydromorphone concentrations were determined by ultra-performance liquid chromatography (UPLC) with gradient elution, followed by tandem mass spectrometry with electrospray ionization. …”
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A Unique Source for Innovative Longitudinal Research: The POPLINK Database by Annika Westberg, Elisabeth Engberg, Sören Edvinsson

“…POPLINK allows for a large array of longitudinal studies, such as social mobility, migration, fertility, mortality, civil status, kinship relations, diseases, disability and causes of death. International standards of occupations (HISCO) and diseases (ICD-10) have been applied, facilitating comparability. …”
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Development and Validation of a GC-MS Method for the Detection and Quantification of Clotiapine in Blood and Urine Specimens and Application to a Postmortem Case by Giulio Mannocchi, Flaminia Pantano, Roberta Tittarelli, Miriam Catanese, Federica Umani Ronchi, Francesco Paolo Busardò

“…Methadone-d9 was used as internal standard. Results. The limit of detection (LOD) was 1.2 and 1.3 ng/mL for urine and blood, respectively, while the lower limit of quantification (LLOQ) was 3.9 and 4.3 ng/mL, respectively. …”
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CONCEPTUAL AMBUSH OF DIGITAL TRANSFORMATIONS IN THE SYSTEMS OF GOVERNMENT MANAGEMENT: WIKILEAKS TODAY by Denys Shabanov

“…The main drivers of digital transformation (technological innovations, citizens' expectations, international standards) and barriers (financial constraints, digital competence, regulatory instability) are identified. …”
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Characterization of Key Odorants in Soy Sauce and Their Concentration Changes during Storage by Rui Wang, Shiyu Chang, Miao Liang, Yajian Wu, Runhu Xin, Yuping Liu, Liang Chen, Shangting Zhou

“…The results of quantitative analysis through the internal standard curve showed that the concentrations of HEMF, HDMF, acetic acid, 1-hydroxy-2-butanone, acetol, and furfuryl alcohol varied greatly during storage, so these compounds might be used as the indicators to determine the shelf life of HLFSS. …”
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Key Elements in Integrity Management of Underground Gas Storage: A Framework for Energy Safety by Shuyi Xie, Bin He, Ligang Chen, Kangkai Xu, Jinheng Luo, Lifeng Li, Bohong Wang

“…To address these issues, this study systematically analyzes domestic and international standards related to gas storage and establishes a technical system based on “three-in-one” integrity management (geological structure, wellbore, and surface facilities). …”
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Comprehensive Analysis of Sustainability Rating Systems for Road Infrastructure by Rajab Ali Mehraban, Lucia Tsantilis, Pier Paolo Riviera, Ezio Santagata

“…Furthermore, this study identifies notable deficiencies in the integration of critical international standards, including ISO, EN, and ASTM, which constrains the comprehensiveness and global applicability of these frameworks. …”
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A Unique Source for Innovative Longitudinal Research: The POPLINK Database by Annika Westberg, Elisabeth Engberg, Sören Edvinsson

“…POPLINK allows for a large array of longitudinal studies, such as social mobility, migration, fertility, mortality, civil status, kinship relations, diseases, disability and causes of death. International standards of occupations (HISCO) and diseases (ICD-10) have been applied, facilitating comparability. …”
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Determination of Crizotinib in Mouse Tissues by LC-MS/MS and Its Application to a Tissue Distribution Study by Fang Zhao, Yuan Wei, Yiming Yan, Han Liu, Sitong Zhou, Bo Ren, Ruijuan Liu

“…Mouse tissue homogenates were processed by protein precipitation with methanol, and apatinib was chosen as the internal standard. The analytes were separated on a Phenomenex Kinetex C18 (50 mm × 2.1 mm, 2.6 μm) column with gradient elution using methanol and 0.3% formic acid water solution. …”
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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

“…In our research, a straightforward UPLC-MS/MS method, with diazepam as the internal standard (IS), was proposed and acknowledged to determine the concentrations of enasidenib in rat plasma. …”
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Determination of Urinary Creatinine in Washington State Residents via Liquid Chromatography/Tandem Mass Spectrometry by Caroline E. West, Blaine N. Rhodes

“…A viable, quick, and reliable method for determining urinary creatinine by liquid chromatography/tandem mass spectrometry (LC/MS/MS) was developed and used to evaluate spot urine samples collected for the Washington Environmental Biomonitoring Survey (WEBS): part of the Washington State Department of Health, Public Health Laboratories (PHL). 50 µL of urine was mixed with a 1 : 1 acetonitrile/water solution containing deuterated creatinine as the internal standard and then analyzed by LC/MS/MS. Utilizing electrospray ionization (ESI) in positive mode, the transition ions for creatinine and creatinine-d3 were determined to be 114.0 to 44.1 (quantifier), 114.0 to 86.1 (qualifier), and 117.0 to 47.1 (creatinine-d3). …”
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Fine tuning enzyme activity assays for monitoring the enzymatic hydrolysis of PET by Krisztina Boros, Blanka Eszter Nagy, Raluca Bianca Tomoiagă, Róbert Tőtős, Monica Ioana Toșa, Csaba Paizs, László Csaba Bencze

“…For the HPLC-based assessment, the incorporation of an internal standard within the analytic procedure enabled a more accurate quantification of the overall TPA content and the assessment of molar distributions and relative content of each aromatic degradation product. …”
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