Results 21 to 30 of about 21,256,998 (238)

Micellar Liquid Chromatographic Determination of Carbaryl and 1-Naphthol in Water, Soil, and Vegetables [PDF]

open access: yesInternational Journal of Analytical Chemistry, 2012
A liquid chromatographic procedure has been developed for the determination of carbaryl, a phenyl-N-methylcarbamate, and its main metabolite 1-naphthol, using a C18 column (250’mm’ × ’4.6’mm) with a micellar mobile phase and fluorescence detection at ...
Mei-Liang Chin-Chen   +6 more
doaj   +2 more sources

Synthesis, in vitro antimicrobial activity, and in silico studies of 1-aminoalkyl-2-naphthols [PDF]

open access: yesScientific Reports
The rise of multidrug-resistant (MDR) pathogens highlights the need for novel antimicrobial agents. This study reports the synthesis of two 1-aminoalkyl-2-naphthol derivatives, 1-(dimethylaminomethyl)naphthalen-2-ol (2) and 1-(piperidin-1-ylmethyl ...
Frehiwot Beyene   +4 more
doaj   +2 more sources

Simultaneous Detection of Naphthol Isomers with a 3D-Graphene-Nanostructure-Based Electrochemical Microsensor

open access: yesChemosensors, 2023
Naphthol is a widely used chemical and medical detection biomarker, but it is harmful to human health and the environment. Therefore, a highly sensitive detection method for naphthol is urgently required.
Jiaci Shi   +6 more
doaj   +1 more source

Azo or Not: Crystallographic Insights into β-Naphthol Reds [PDF]

open access: yes, 2022
β-Naphthol reds are a group of widely used pigments with prominent historical, commercial, and cultural significance. In in-dustry, and especially within the art and heritage community, they are known as azo pigments.
Matthew , Heaney   +2 more
core   +1 more source

A Simple and Reliable Dispersive Liquid-Liquid Microextraction with Smartphone-Based Digital Images for Determination of Carbaryl Residues in Andrographis paniculata Herbal Medicines Using Simple Peroxidase Extract from Senna siamea Lam. Bark

open access: yesMolecules, 2022
A simple and reliable dispersive liquid-liquid microextraction (DLLME) coupled with smartphone-based digital images using crude peroxidase extracts from cassia bark (Senna siamea Lam.) was proposed to determine carbaryl residues in Andrographis ...
Sam-ang Supharoek   +3 more
doaj   +1 more source

Removal of 1-naphthol from Water via Photocatalytic Degradation Over N,S-TiO2/ Silica Sulfuric Acid under visible Light [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2022
Background: Naphthol, one of the naphthalene derivatives, is the most significant industrial chemical. It is widely used in the biochemical processes, production of dyes, and pharmaceutical industries.Methods: In the present study, N, S-doped TiO2 thin ...
Farhad Mahmoodi   +3 more
doaj   +1 more source

Intermolecular Dissociation Energies of 1-Naphthol Complexes with Ethene and Chloroethenes [PDF]

open access: yes, 2023
The stimulated-emission-pumping/resonant 2-photon ionization (SEP-R2PI) method was used to determine the intermolecular ground-state dissociation energies, D0(S0) of jet-cooled complexes of 1- naphthol (1NpOH) with ethene, trans-1,2-dichloroethene ...
Rajeev K., Sinha   +3 more
core   +1 more source

Theoretical study on thermal decomposition mechanism of 1-nitroso-2-naphthol

open access: yesScientific Reports, 2022
1-nitroso-2-naphthol has thermal instability of thermal decomposition, spontaneous combustion and even explosion. Its thermal decomposition characteristics were tested by synchronous thermal analyzer (TGA/DSC); The activation energy of the thermal ...
Xiaohua Fan   +3 more
doaj   +1 more source

A novel RP-HPLC method for quantification of cholinesterase activity in human blood: An application for assessing organophosphate and carbamate insecticide exposure.

open access: yesPLoS ONE, 2022
Several methods have been reported to estimate Acetylcholinesterase (AChE) enzyme activity in blood samples. The Ellman assay is the most important among all but with several shortcomings, and there is a need to develop a method which is accurate ...
Sukesh Narayan Sinha   +4 more
doaj   +1 more source

Potentials of N-(2, 4-dinitro-1-naphthyl)-p-toluenesulphonamide and 2, 4-dinitro-1-naphthol as novel charge transfer acceptors in pharmaceutical analysis of some quinolones and cephalosporins

open access: yesFuture Journal of Pharmaceutical Sciences, 2022
Background Quinolones and cephalosporins are antibiotic agents with activity against Gram-positive and Gram-negative bacteria. They contain chromophores and amine groups which are electron-rich centres capable of donating electrons to electron-deficient ...
O. E. Umoh, O. A. Adegoke, D. E. Effiong
doaj   +1 more source

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