Boaventura F. Reis
0000-0003-1520-2804
190 papers found
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Photogeneration of silver nanoparticles induced by UV radiation and their use as a sensor for the determination of chloride in fuel ethanol using a flow-batch system
A greener, fast, and cost-effective smartphone-based digital image procedure for quantification of ethanol in distilled beverages
A new strategy for membraneless gas-liquid separation in flow analysis: Determination of dissolved inorganic carbon in natural waters
A new sensitive photometric procedure for the determination of sulfate in fuel ethanol without sample preparation exploiting a flow-batch strategy
Automatic Procedure to Determine Acidity in Fuel Ethanol by Photometric Titration Using Binary Search and Multicommuted Flow Analysis
A novel multicommuted flow analysis strategy for the spectrophotometric determination of cadmium in water at μg L−1 levels without using a preconcentration step
Fully automated photometric titration procedure employing a multicommuted flow analysis setup for acidity determination in fruit juice, vinegar, and wine
A Sensitive Photometric Procedure for Cobalt Determination in Water Employing a Compact Multicommuted Flow Analysis System
A clean photometric method for the determination of losartan potassium in pharmaceuticals exploiting light scattering effect and employing a multicommuted flow analysis approach
A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step
An Automated Multicommuted Flow Analysis Procedure for Photometric Determination of Reducing Sugars in Wine Employing a Directly Heated Flow‑Batch Device
Evaluation of the schlieren effect employing a LED-based photometer with a long-pathlength flow cell for reagentless photometric determination of ethanol in distilled ethanolic beverages
Determination of Polyphenol Content by Formation of Unstable Compound Using a Mini-Pump Multicommutation System
Automatic Procedure for Spectrophotometric Determination of Hydroquinone Employing Multicommutation Flow in Analysis System
Development of a photometric procedure for tin determination in canned foods employing a multicommuted flow analysis approach
Development of a microcontrolled Flow-batch device with direct heating for analytical procedures that require a heating step for chemical reaction development
Development of a new procedure for the determination of captopril in pharmaceutical formulations employing chemiluminescence and a multicommuted flow analysis approach
Development of a portable setup and a multicommuted flow analysis procedure for the photometric determination of Fe(III) and Fe(II) in fresh water
An air carrier flow system for the spectrophotometric determination of water in biodiesel exploiting bleaching of the cobalt chloride complex
Development of a Procedure Based on Chemiluminescence and Multicommutation Approach for the Determination of Folic Acid in Pharmaceuticals
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