Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Richie L.C. Chen"'
Publikováno v:
Airiti
Capillary electrophoresis (CE) procedure was developed for determining glucosamine content in nutraceuticals. Glucosamine was labeled with o-phthalaldehyde (OPA) by mixing with the OPA reagent (4.5 mM OPA, 4.5 mM 2-mercaptoethanol dissolved in 20 mM
Publikováno v:
Journal of Food and Drug Analysis. 12
Publikováno v:
Journal of Food and Drug Analysis. 18
Visible/near-infrared transmittance spectra (600-1368 nm) of the aqueous extracts of 120 ground pork tenderloin samples from Taiwan black-hair hogs were used to correlate with the freshness-relating data including pH, volatile basic nitrogen and aero
Publikováno v:
Sensors (Basel, Switzerland)
Sensors
Volume 19
Issue 7
Sensors, Vol 19, Iss 7, p 1571 (2019)
Sensors
Volume 19
Issue 7
Sensors, Vol 19, Iss 7, p 1571 (2019)
This study develops a hand-held stress assessment meter with a chemically colorimetric strip for determining salivary &alpha
amylase activity, using a 3,5 dinitrosalicylic acid (DNS) assay to quantify the reducing sugar released from soluble sta
amylase activity, using a 3,5 dinitrosalicylic acid (DNS) assay to quantify the reducing sugar released from soluble sta
Publikováno v:
Journal of Separation Science. 36:803-808
An online dynamic pH junction preconcentration method was developed for quantification of 5-aminolevulinic acid (ALA) by CE with the separation time less than 6 min. The optimal dynamic pH junction of ALA was carried out between pH 9.3 borate buffer
Publikováno v:
Fuel. 102:724-728
The biodiesel content or blending ratio of a biodiesel fuel is crucial for the quality control and official regulation. A rapid ( −1 ) detection chamber composed of a hydrophobic electrode pair (two identical screen-printed carbon paste electrodes)
Publikováno v:
Electrochimica Acta. 56:9916-9920
A microelectrode was fabricated by electrochemical etching of a pencil lead (0.5 mm in diameter) in 1.0 M NaOH aqueous solution. The pencil lead was dipped into the solution and then an ac voltage (3.0 V rms for 10 min) was imposed against a stainles
Autor:
Tzong-Jih Cheng, Rakesh Mohan Kestwal, Richie L.C. Chen, Been-Huang Chiang, Bo-Chuan Hsieh, Dipali Bagal-Kestwal
Publikováno v:
Biosensors and Bioelectronics. 26:118-125
β(1 → 3)-d-Glucan sensors were fabricated using bi-enzyme and tri-enzyme immobilized systems with gold nanoparticles (GNPs) to increase sensitivity. The plant β(1 → 3)-d-glucanase (βG), glucose oxidase (GOD) or/and peroxidase (POD) in agarose
Publikováno v:
Food Chemistry. 120:632-636
A micellar electrokinetic capillary electrophoresis (MEKC) method was used to rapidly determine seven tea catechins, three xanthines, gallic acid, vitamin C, theanine and theaflavin in tea. All the compounds were successfully separated (20 kV) within
Publikováno v:
Microchimica Acta. 169:117-122
A flow system, coupled with visible light scattering method, was developed for tannin determination based on the ability of the tannic acid to precipitate bovine serum albumin (BSA). The amount of precipitated tannic acid- BSA is measured directly by