Results 121 to 130 of about 225,502 (309)

The effect of pressure and mobile phase velocity on the retention properties of small analytes and large biomolecules in ultra-high pressure liquid chromatography

, 2012
A possible complication of ultra-high pressure liquid chromatography (UHPLC) is related to the effect of pressure and mobile phase velocity on the retention properties of the analytes.
McCalley, David V., Guillarme, Davy, Veuthey, Jean-Luc, Fekete, Szabolcs, Veuthey, Jean Luc   +4 more
core   +1 more source

Solid‐State Nanopore Characterization of Dendrimer‐Peptide Conjugates Across Defined Peptide Loadings

Advanced Materials Interfaces, EarlyView.
Solid‐state nanopores are used to interrogate dendrimer‐peptide conjugates with systematically varied peptide loading. Single‐particle ionic current signatures reveal how ligand density modulates deformability, transport pathways, and electromechanical coupling during translocation.
Chaoming Gu, Jin Woong Lee, Kamruzzaman Joty, Marisela Leon, Santosh Khatri, Janeesha Manawasinghe, Seungpyo Hong, Min Jun Kim   +7 more
wiley   +1 more source

Appendix E. Example of chromatogram from high-pressure liquid chromatography (HPLC) analyses of mussel gonadal tissue.

, 2016
Example of chromatogram from high-pressure liquid chromatography (HPLC) analyses of mussel gonadal ...
Laura E. Petes (2932539), Bruce A. Menge (2657704), Alyssa L. Harris (2932536)   +2 more
core   +1 more source

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Analysis of Plasma Amino Acids Using RP-HPLC and Pre-Column Derivatization with OPA/3-MPA

Medical Laboratory Journal, 2016
Background and Objective: Measurement of amino acids is an important tool for metabolic studies and evaluation of patients’ clinical condition. The aim of this study was to analyze the plasma amino acids using reverse phase high performance liquid ...
Fahime Mohammad Abadi, Arezoo Mirfazeli, Hossein Zaeri, Mojgan Nejabat, Mahsa taherizadeh, Mohammad Ariaie, azadeh Aliarab, Hamidreza Joshaghani   +7 more
doaj  

Standardization and validation of a high-efficiency liquid chromatography with a diode-array detector (HPLC-DAD) for voriconazole blood level determination

Biomédica: revista del Instituto Nacional de Salud
Introduction. A specialized service for antifungal blood level determination is not available in Colombia. This service is essential for the proper follow-up of antifungal therapies. Objective.
Juan D. Zapata, Diego H. Cáceres, Luz E. Cano, Catalina de Bedout, Sinar D. Granada, Tonny W. Naranjo   +5 more
doaj   +1 more source

Application of a new high performance liquid chromatography method to the pharmacokinetics of dibudipine in rats [PDF]

Purpose: To develop a HPLC method for assay of dibudipine in biological fluids and to study its pharmacokinetics in the rat. Methods. HPLC: 2 μl (20 μg/ml) mebudipine as internal standard, 0.2 ml NaOH 1 M and 2 ml ethyl acetate were added to 0.2 ml of ...
محمودیان, مسعود, غیائی, سعید, کیهانفر, فریبرز, بهلولی, شهاب   +3 more
core  

Gas chromatography-mass spectrometry and high-performance liquid chromatography-diode array detection for dating of paper ink

, 2017
An extraction and determination method is shown for the analysis of dyes and solvents present in two types of ballpoint pen inks that are deposited onto paper. Ink extracts are analysed using a combination of gas chromatography with mass spectrometry (
Daura Vega-Moreno, Vega-Moreno, Daura, Oscar Díaz-Santana, Díaz-Santana, Oscar, Conde-Hardisson, Francisco, Francisco Conde-Hardisson   +5 more
core   +1 more source

Reconnaissance Peptide Labeling Grain Boundary of Chemically Grown MoS2 Polycrystalline Monolayer

Advanced Materials Technologies, EarlyView.
Self‐assembled peptides on substrates, through adsorption and aggregation, offer an alternative way to label grain boundaries in chemically grown single‐layer polycrystalline MoS2. During an early nucleation step, peptides preferentially bind to grain boundaries.
Linhao Sun, Jinhua Hu
wiley   +1 more source

Assessment of Cotinine Levels in Saliva among Smokers and Nonsmokers in Belagavi City – A Clinical Study

Journal of Indian Academy of Oral Medicine and Radiology
Background: Smoking is a leading cause of morbidity and mortality worldwide. Cotinine, the primary metabolite of nicotine, is a reliable biomarker of tobacco exposure, with a half-life of 15–40 hours detected in various body fluids, including saliva.
Sujata Byahatti, Girish Dandagi, Viraj Nesargi   +2 more
doaj   +1 more source