Automated analytical procedure using multicommuted flow analysis and organic solvent extraction controlled by an Arduino Due board for photometric determination of zinc in water

2021 ◽  
pp. 105918
Author(s):  
G. Felisberto. Santos ◽  
F. Boaventura. Reis
Keyword(s):  
Solvent Extraction ◽  
Organic Solvent ◽  
Analytical Procedure ◽  
Flow Analysis ◽  
Photometric Determination ◽  
Organic Solvent Extraction

Development of a photometric procedure for tin determination in canned foods employing a multicommuted flow analysis approach

2016 ◽  
Vol 8 (17) ◽  
pp. 3620-3628 ◽  
Author(s):  
Tuanne R. Dias ◽  
Boaventura F. Reis
Keyword(s):  
Analytical Procedure ◽  
Flow System ◽  
Flow Analysis ◽  
Photometric Determination ◽  
Analysis Approach ◽  
Analysis Process ◽  
Tin Determination ◽  
Canned Foods

This work describes an automated analytical procedure for the photometric determination of tin in canned foods, employing a multicommuted flow analysis process. The flow system manifold comprises a set of three-way solenoid valves to handle solutions and a multisyringe module for fluid propelling.

scholarly journals A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Felisberto G. Santos ◽  
Boaventura F. Reis
Keyword(s):  
Solvent Extraction ◽  
Sampling Rate ◽  
Flow Analysis ◽  
Reference Method ◽  
Photometric Determination ◽  
Plant Materials ◽  
Photometric Detection ◽  
Extraction Step ◽  
Highly Sensitive

A highly sensitive analytical procedure for photometric determination of molybdenum in plant materials was developed and validated. This procedure is based on the reaction of Mo(V) with thiocyanate ions (SCN−) in acidic medium to form a compound that can be monitored at 474 nm and was implemented employing a multicommuted flow analysis setup. Photometric detection was performed using an LED-based photometer coupled to a flow cell with a long optical path length (200 mm) to achieve high sensitivity, allowing Mo(V) determination at a level of μg L−1 without the use of an organic solvent extraction step. After optimization of operational conditions, samples of digested plant materials were analyzed employing the proposed procedure. The accuracy was assessed by comparing the obtained results with those of a reference method, with an agreement observed at 95% confidence level. In addition, a detection limit of 9.1 μg L−1, a linear response (r=0.9969) over the concentration range of 50–500 μg L−1, generation of only 3.75 mL of waste per determination, and a sampling rate of 51 determinations per hour were achieved.

Development of a high sensitivity photometric procedure for the determination of vanadium in mineral and fresh waters employing a downsized multicommuted flow analysis approach

2014 ◽  
Vol 6 (24) ◽  
pp. 9667-9674 ◽  
Author(s):  
Tuanne R. Dias ◽  
Jarbas J. R. Rohwedder ◽  
Marcos A. S. Brasil ◽  
Boaventura F. Reis
Keyword(s):  
Analytical Procedure ◽  
Flow Analysis ◽  
High Sensitivity ◽  
Photometric Determination ◽  
Mineral Waters ◽  
Analysis Approach ◽  
Fresh Waters

This article focuses on the development of an analytical procedure for the photometric determination of vanadium in fresh and mineral waters, implemented employing a downsized multicommuted flow analysis approach.

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