Results 111 to 120 of about 97,740 (305)

N-linked oligosaccharides obtained from glycoproteins of the lichens Sticta tomentosa and Sticta damaecornis

Eclética Química, 2018
The lichens Sticta tomentosa and Sticta damaecornis were extracted to obtain glycoproteins. The extracts were fractionated with 30-80% saturation (NH4)2SO4. The fractions were reduced, alkylated and after dialysis the material were digested with trypsin.
Patrícia Fidelis de Oliveira, Flávia Doná, Marcelo Marcelli, Marilsa Cardoso, Maria de Lourdes Corradi da Silva   +4 more
doaj   +1 more source

In Vivo and In Vitro Evaluation of PTeCA (1H‐Pyrrole‐2,3,4,5‐Tetracarboxylic Acid) in Hair Matrix as a Marker for Oxidative Cosmetic Treatment

Drug Testing and Analysis, EarlyView.
A total of 3378 self‐reported treated and untreated hair samples were analyzed for PTCA and PTeCA by LC‐MS/MS. Moreover, their in vitro formation was assessed in 225 untreated hair by different cosmetic treatments with and without oxidative agents. Data suggest that PTeCA could be a reliable marker for oxidative cosmetic treatments in hair.
Sara Casati, Alessandro Ravelli, Roberta F. Bergamaschi, Agata Magliocco, Sofia Vanerio, Gabriella Roda, Paola Rota, Marica Orioli, Alessio Battistini   +8 more
wiley   +1 more source

Total Synthesis of rac‐Keramamine C Enabled by Intrinsic H‐Bond‐Induced Conformational Fixation of Amides

European Journal of Organic Chemistry, EarlyView.
The total synthesis of the manzamine alkaloid keramamine C (2) in its racemic form was achieved in 5 steps, with ring‐closing metathesis as the key step. The metathesis is strongly improved by an intramolecular H‐bond‐induced conformational fixation of the amide bond, inducing close proximity of the terminal double bonds in the precursor molecule.
Jana Ganzmann, Ryan Thurston, Pascal Riester, Nina Hegmann, Markus R. Heinrich   +4 more
wiley   +1 more source

Chemical Syntheses of 3′ and 5′ Phosphorylated Oligonucleotides: An Overview

European Journal of Organic Chemistry, EarlyView.
This review provides an overview of the various chemical methods employed in the synthesis of oligonucleotides bearing a phosphate group at their 3′ or 5′ end. Notably, it presents modified phosphoramidites and supports developed for this purpose. Oligonucleotides (ON) with a phosphate monoester group at their 3′ or 5′ end have applications in many ...
Rémy Lartia
wiley   +1 more source

Validated RP‐HPLC–UV Method for the Quantitative Analysis and Stability Evaluation of Amoxicillin in Paediatric Gummy Tablets

ELECTROPHORESIS, EarlyView.
A validated RP‐HPLC–UV method was successfully applied for amoxicillin determination in gummy tablets. The method is useful for an accurate amoxicillin content determination in paediatric gummies and was applied to study the stability profile of the drug, evaluated over 6 months under storage conditions.
Samuele Bonafè, Anna Imbriano, Cinzia Pagano, Anna Migni, Elisa Bianconi, Laura Mercolini, Luana Perioli, Roccaldo Sardella   +7 more
wiley   +1 more source

Application of HPLC for detection of sildenafil/tadalafil in marketed honey in Oman

International Journal of Secondary Metabolite
Honey adulteration allegedly with phosphodiesterase-5 (PDE-5) inhibitors including sildenafil, and tadalafil is a common and dangerous practice. This study aimed to develop a procedure to detect the presence of common adulterants namely sildenafil and ...
Mohammad Jawaıd Akhtar, Hameda Hamood Al Dhakhri, Shah Alam Khan, Sumit Pannu, Fatema Alqassabi, Israa Alrasbi, Dhuha Alhinai, Salha Al Salty, Shaima Al Balushi   +8 more
doaj   +1 more source

Analysis of lactic acid oligomers and crude lactide BY RP-HPLC [PDF]

, 2016
In this article it provides a method for quantitative determination of lactic acid and lactide in lacticacid oligomers and crude-lactide using RP-HPLC method.
Заманова, Маргарита Каримовна, Зиновьев, А. Л., Крутась, Д. С.   +2 more
core  

Biomass‐derived hydrochars as eco‐friendly adsorbents for wastewater treatment applications

Environmental Progress &Sustainable Energy, EarlyView.
Abstract Emerging organic pollutants (EOPs), such as diethyl phthalate (DEP), bisphenol A (BPA), and methylene blue (MB), are only partially removed in conventional wastewater treatment plants. This study assesses hydrochars produced by hydrothermal carbonization (HTC) of spruce bark (SB), vine shoots (VSs), and wheat straw (WSs) for removing three ...
Emanuel Gheorghita Armanu, Sara Ribeirinho‐Soares, Christian Eberlein, Hermann J. Heipieper, Irina Volf, Olga C. Nunes, Olívia Salomé G. P. Soares   +6 more
wiley   +1 more source

Influence of commercial proteases on the proteolysis of enzyme modified cheese : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Food Technology at Massey University, Palmerston North, New Zealand [PDF]

, 2000
The influence of four commercial proteases, Protease A, Protease B, Protease C and a two enzyme blend Protease DE, on proteolysis in an enzyme modified cheese (EMC) base has been investigated.
Chen, Emily Yi Chuan
core  

ESTIMATION OF ONDANSETRON HYDROCHLORIDE BY RP-HPLC

EPRA International Journal of Research & Development (IJRD), 2020
A RP-HPLC method was developed for the estimation of Ondansetron Hydrochloride in Bulk drug using high performance liquid chromatography. Ondansetron was a serotonin 5-HT3 receptor antagonist used mainly as an antiemetic drug to treat nausea and vomiting after cancer chemotherapy.
openaire   +1 more source