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Validated Simple HPLC-UV Method for Mycophenolic Acid (MPA) Monitoring in Human Plasma. Internal Standardization: Is It Necessary?
Free accessDOAJ | 2021|Keywords: internal standard -
Uncertainty Evaluation of Indicative Polychlorinated Biphenyls in Fish by Gas Chromatography
Free accessDOAJ | 2024|Keywords: internal standard method -
Toward Flexible Metal Semiconductor Sandwich Surface-Enhanced Raman scattering (SERS) sensors Pesticide Duplex Detection
Free accessDOAJ | 2023|Keywords: Intrinsic internal standard -
The Determination of Aluminum Content in 89SrCl2 Crude Material by HR-ICP-MS
Free accessDOAJ | 2021|Keywords: internal standard element -
The Application of Quantitative 1H-NMR for the Determination of Orlistat in Tablets
Free accessDOAJ | 2017|Keywords: internal standard method -
TBS-pyrrole as an “universal” reference to quantify artemisinin and structurally-diverse natural products in plants extracts by NMR
Free accessDOAJ | 2023|Keywords: NMR internal standard -
Synthesis of Deuterated Methylphosphonic Acid Derivatives for Use as Standard Compounds in the Analysis of Toxic Chemicals
Free accessDOAJ | 2021|Keywords: internal standard -
Synthesis of (±)-3,4-dimethoxybenzyl-4-methyloctanoate as a novel internal standard for capsinoid determination by HPLC-ESI-MS/MS(QTOF)
Free accessDOAJ | 2018|Keywords: internal standard -
Simultaneous Determination of Eugenol and Its Five Derivatives in Aquatic Products by Ultra-high Performance Liquid Chromatography-Tandem Mass Spectrometry Combined with Quick, Easy, Cheap, Effective, Rugged and Safe Extraction
Free accessDOAJ | 2023|Keywords: quick, easy, cheap, effective, rugged and safe; ultra-high performance liquid chromatography-tandem mass spectrometry; eugenol derivatives; aquatic products; internal standard method -
Simultaneous Determination of 17 β-Receptor Agonists in Meat by QuEChERS EMR-Lipid with Isotope Dilution-Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry
Free accessDOAJ | 2023|Keywords: isotope internal standard -
Simultaneous Determination of 15 Mycotoxins in Grains by Solid Phase Extraction with Impurity Adsorption and UPLC/MSMS
Free accessDOAJ | 2021|Keywords: stable isotope internal standard -
Simultaneous Determination of 14 Organic Pollutants in Water by Direct Injection-Ultra High Performance Liquid Chromatography Tandem Mass Spectrometry
Free accessDOAJ | 2022|Keywords: internal standard method -
Selection of an internal standard to determine mass concentration of uranium in human urine by inductively coupled plasma mass-spectrometry
Free accessDOAJ | 2023|Keywords: internal standard; -
Rapid analysis of fifteen sulfonamide residues in pork and fish samples by automated on-line solid phase extraction coupled to liquid chromatography–tandem mass spectrometry
Free accessDOAJ | 2020|Keywords: Internal standard quantification -
Rapid Analysis for Staphylococcus aureus via Microchip Capillary Electrophoresis
Free accessDOAJ | 2021|Keywords: space domain internal standard method -
Quantitative SERS Analysis by Employing Janus Nanoparticles with Internal Standards
Free accessDOAJ | 2023|Keywords: internal standard -
Quantitative determination of UF3 in LiF-BeF2 molten salt system based on XRD internal standard method
Free accessDOAJ | 2024|Keywords: internal standard method -
Quantitative Analysis of Portland Cement Clinker with Rietveld Refinement: Implications of the Amorphous Matter
Free accessDOAJ | 2021|Keywords: internal standard -
Quantitation of glutathione S-transferases in rice (Oryza sativa L.) roots exposed to cadmium by liquid chromatography–tandem mass spectrometry using isotope-labeled wing peptides as an internal standard
Free accessDOAJ | 2017|Keywords: Isotope-labeled internal standard -
Quantitation of cardiolipin molecular species in spontaneously hypertensive heart failure rats using electrospray ionization mass spectrometry
Free accessDOAJ | 2005|Keywords: internal standard -
Quantification of Oligonucleotides Using Tandem Mass Spectrometry with Isobaric Internal Standards
Free accessDOAJ | 2023|Keywords: internal standard -
Preparation of uniformly labelled 13C- and 15N-plants using customised growth chambers
Free accessDOAJ | 2020|Keywords: Internal standard -
Precise Determination of Silicon in Ceramic Reference Materials by Prompt Gamma Activation Analysis at JRR-3
Free accessDOAJ | 2016|Keywords: Internal Standard -
Practical mineralogical quantification of bentonites supported for a PXRD calibrated hkl model
Free accessDOAJ | 2021|Keywords: internal standard method -
Olaris Global Panel (OGP): A Highly Accurate and Reproducible Triple Quadrupole Mass Spectrometry-Based Metabolomics Method for Clinical Biomarker Discovery
Free accessDOAJ | 2024|Keywords: U-13C-metabolite internal standard -
Mitigating analyte to stable isotope labelled internal standard cross-signal contribution in quantitative liquid chromatography-tandem mass spectrometry
Free accessDOAJ | 2022|Keywords: Stable isotope labelled internal standard -
Microscale Quantitative Analysis of Polyhydroxybutyrate in Prokaryotes Using IDMS
Free accessDOAJ | 2017|Keywords: 13C-labeled internal standard -
Matrix-matched calibration in LA-ICP-MS of silicate, phosphate and carbonate minerals: application of G-Probe samples
Free accessDOAJ | 2020|Keywords: internal standard -
Mapping of Sulfur Isotopes and Trace Elements in Sulfides by LA-(MC)-ICP-MS: Potential Analytical Problems, Improvements and Implications
Free accessDOAJ | 2016|Keywords: internal standard element -
Linking a rapid throughput plate-assay with high-sensitivity stable-isotope label LCMS quantification permits the identification and characterisation of low β-L-ODAP grass pea lines
Free accessDOAJ | 2019|Keywords: 13C-internal standard -
LC–MS/MS quantitative analysis of phylloquinone, menaquinone-4 and menaquinone-7 in the human serum of a healthy population
Free accessDOAJ | 2019|Keywords: Deuterated internal standard -
Interlaboratory study of the method for direct determination of volatile compounds in alcoholic products using ethanol as internal standard
Free accessDOAJ | 2020|Keywords: internal standard -
Improvements in the QUALITATIVE HCV UMELOSA test to detect the RNA of the hepatitis C virus
Free accessDOAJ | 2016|Keywords: internal standard -
Improved internal standard LIBS method used in CLF-1 exposure to liquid lithium
Free accessDOAJ | 2020|Keywords: Improved internal standard LIBS method -
Fast determination of polybrominated diphenyl ethers residues in milk by dispersive solid phase extraction and isotope labeled internal standard-gas chromatography-tandem mass spectrometry
Free accessDOAJ | 2020|Keywords: isotope labeled internal standard -
Fabrication and Characterization of a Highly-Sensitive Surface-Enhanced Raman Scattering Nanosensor for Detecting Glucose in Urine
Free accessDOAJ | 2018|Keywords: internal standard -
Experimento utilizando grãos para explorar a calibração em análises químicas
Free accessDOAJ | 2014|Keywords: internal standard -
Experimento didático sobre cromatografia gasosa: uma abordagem analítica e ambiental Didactic experiment on gas chromatography: an environmental and analytical approach
Free accessDOAJ | 2008|Keywords: internal standard -
Evaluation of Uncertainty in Determination of Cephalosporins in Chicken by High Performance Liquid Chromatography-Tandem Mass Spectrometry Isotope Internal Standard Method
Free accessDOAJ | 2022|Keywords: isotope internal standard method -
Evaluation of different internal standards for precious metals quantification
Free accessDOAJ | 2016|Keywords: Internal standard -
Evaluation of a Stable Isotope-Based Direct Quantification Method for Dicamba Analysis from Air and Water Using Single-Quadrupole LC–MS
Free accessDOAJ | 2020|Keywords: internal standard quantification -
Enhanced Metabolome Coverage and Evaluation of Matrix Effects by the Use of Experimental-Condition-Matched 13C-Labeled Biological Samples in Isotope-Assisted LC-HRMS Metabolomics
Free accessDOAJ | 2020|Keywords: internal standard -
Dispersive Solid-Phase Extraction and Ultra-Performance Liquid Chromatography–Tandem Mass Spectrometry—A Rapid and Accurate Method for Detecting 10 Macrolide Residues in Aquatic Products
Free accessDOAJ | 2024|Keywords: isotopically labelled internal standard -
Development of Reference Materials for the Analysis of Inorganic Trace Impurities in Cadmium Telluride Solutions
Free accessDOAJ | 2022|Keywords: internal standard calibration -
Development of fluorescent lateral flow immunoassay for SARS-CoV-2-specific IgM and IgG based on aggregation-induced emission carbon dots
Free accessDOAJ | 2022|Keywords: internal standard calibration -
Determination of Trace Silver in Geological Samples by Inductively Coupled Plasma-Mass Spectrometry with Acid Decomposition and Internal Standard Calibration
Free accessDOAJ | 2021|Keywords: internal standard method -
Determination of Trace Elements in Magnetite by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry Using Multiple External Standards without an Internal Standard Calibration
Free accessDOAJ | 2016|Keywords: multiple external standards without internal standard -
Determination of Response Factors for Analytes Detected during Migration Studies, Strategy and Internal Standard Selection for Risk Minimization
Free accessDOAJ | 2023|Keywords: internal standard -
Determination of Polycyclic Aromatic Hydrocarbons (PAHs) and Phthalates in Human Placenta by Mixed Hexane/Ether Extraction and Gas Chromatography–Mass Spectrometry/Mass Spectrometry (GC-MS/MS)
Free accessDOAJ | 2023|Keywords: internal standard method -
Determination of Phosphorus in Phosphate Ores by Inductively Coupled Plasma-Optical Emission Spectrometry Utilizing an Internal Standard Correction Method
Free accessDOAJ | 2017|Keywords: internal standard correction
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