Results 1 to 10 of about 166,185,938 (258)

Cyanine-based dyes: highly sensitive sensors for the detection of the hypochlorite levels in drinking water based on fluorometry. [PDF]

open access: yesDelta Journal of Science, 2023
Drinking water is frequently disinfected with chlorine, and it is necessary to quantify any remaining chlorine in the form of the hypochlorite ion (ClO-).
Ehab Okba   +4 more
doaj   +1 more source

DETERMINATION OF RESIDUAL SOLVENTS IN PSMA 11 - AN ACTIVE PHARMACEUTICAL SUBSTANCE IN PSMA-11 KIT FOR Ga-68 LABELLING [PDF]

open access: yesActa Poloniae Pharmaceutica, 2023
A selective, sensitive and low sample consumption GC method for determination of residual solvents in PSMA samples was developed. Selectivity with respect to solvents such as ethanol, diethyl ether, 2-propanole, acetonitrile, dichloromethane, used in ...
Robert Lipka   +2 more
doaj   +1 more source

Comparison of Different Approaches for Estimation of the Detection Limit of Quantitative NMR

open access: yesChinese Journal of Magnetic Resonance, 2022
Limit of detection (LOD), which indicates the detection ability of an analytical method, is an important parameter used in validating quantitative 1H nuclear magnetic resonance (NMR) method.
Lei CHEN, Hong-bing LIU, Hui-li LIU
doaj   +1 more source

Emerging Methods in Biosensing of Immunoglobin G—A Review

open access: yesSensors, 2023
Human antibodies are produced due to the activation of immune system components upon exposure to an external agent or antigen. Human antibody G, or immunoglobin G (IgG), accounts for 75% of total serum antibody content. IgG controls several infections by
Tehmina Azam   +3 more
doaj   +1 more source

Sporadic worldwide “clusters” of feed driven Zilpaterol identifications in racing horses: a review and analysis

open access: yesIrish Veterinary Journal, 2022
Zilpaterol is a β2-adrenergic agonist medication approved in certain countries as a cattle feed additive to improve carcass quality. Trace amounts of Zilpaterol can transfer to horse feed, yielding equine urinary “identifications” of Zilpaterol.
Jacob Machin   +5 more
doaj   +1 more source

Determination of sensitivity limit in quantative analysis of polycyclic aromatic hydrocarbons by Gc-ms [PDF]

open access: yesActa Periodica Technologica, 2004
The limit of detection (LOD) and the limit of quantitation (LOQ) for 16 individual PAHs from the Environmental Protection Agency (EPA) list (naphthalene, acenaphthylene, acenaphtene, fluorene, phenanthrene antrachene, fluoranthene, pyrene, benzo(a ...
Marjanović Nikola J.   +3 more
doaj   +1 more source

Measurement of methionine level with the LC-ESI-MS/MS method in schizophrenic patients [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2016
The purpose of this study was to evaluate plasma methionine levels by using liquid chromatography electrospray ionization-tandem mass spectroscopy (LC-ESI-MS/MS) in schizophrenic patients.
S. Kulaksizoglu   +5 more
doaj   +1 more source

Integrated Microfluidic Preconcentration and Nucleic Amplification System for Detection of Influenza A Virus H1N1 in Saliva

open access: yesMicromachines, 2020
Influenza A viruses are often present in environmental and clinical samples at concentrations below the limit of detection (LOD) of molecular diagnostics.
Yonghee Kim   +11 more
doaj   +1 more source

Ultrasensitive detection of SARS-CoV-2 nucleocapsid protein using large gold nanoparticle-enhanced surface plasmon resonance

open access: yesScientific Reports, 2022
The COVID-19 pandemic has created urgent demand for rapid detection of the SARS-CoV-2 coronavirus. Herein, we report highly sensitive detection of SARS-CoV-2 nucleocapsid protein (N protein) using nanoparticle-enhanced surface plasmon resonance (SPR ...
Taka-aki Yano   +15 more
doaj   +1 more source

Development, Validation and Application of a Novel UHPLC-UV Method for the Simultaneous Determination of Valsartan and Nifedipine in the New Formulation of Self-Nanoemulsifying Drug Delivery Systems

open access: yesSeparations, 2022
Our objective is to develop a robust method to quantify valsartan (VAL) and nifedipine (NIF) in developed a self-nanoemulsifying drug delivery formulation.
Md Abdur Rashid   +3 more
doaj   +1 more source

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