Dewatering of Golden Horn sludge with geotextile tube and determination of optimum operating conditions: A novel approach

2021 ◽  
pp. 1-13
Author(s):  
Ümit Karadoğan ◽  
Gökhan Çevikbilen ◽  
Sevde Korkut ◽  
Mehmet Emin Pasaoglu ◽  
Berrak Teymur
Keyword(s):  
Operating Conditions ◽  
Optimum Operating ◽  
Geotextile Tube ◽  
Golden Horn ◽  
Novel Approach

scholarly journals Analytical application of acidic victoria blue 4R mixture with KBrO3 for the kinetic determination of traces of antimony(III) by spectrophotometry

2012 ◽  
Vol 31 (1) ◽  
pp. 29
Author(s):  
Violeta Mitić ◽  
Snežana Nikolić-Mandić ◽  
Vesna Stankov-Jovanović
Keyword(s):  
Reaction Rate ◽  
Kinetic Method ◽  
Operating Conditions ◽  
Rate Equations ◽  
Optimum Operating ◽  
Acid Media ◽  
Kinetic Determination ◽  
Hydrochloric Acid Media ◽  
Optimized Conditions

The present paper describes a simple, selective and sensitive kinetic method for the determination of trace amounts of Sb(III) in the presence of Sb(V) based on its inhibition effect on the redox reaction between bromate and Victoria blue 4R (V.B. 4-R) in hydrochloric acid media. The reaction was followed spectrophotometrically by measuring the decrease in the absorbance of V.B. 4-R at 596.3 nm. Optimum operating conditions regarding reagent concentrations were established. The optimized conditions yielded a theoretical detection limit of 1.30·10‒8 g cm–3 Sb(III) based on the 3S0 criterion. The method allows the determination of Sb(III) in the range of 5·10‒8 ‒ 1.1·10‒6 g cm–3. The effects of certain foreign ions the reaction rate were determined for an assessment of the selectivity of the method. The kinetic parameters of the reaction were reported, and the rate equations were suggested. The results were validated statistically and through recovery studies. The proposed method has been successfully applied to the determination of Sb(III) in various model and real samples.

scholarly journals Quantitative analysis of ibuprofen in pharmaceuticals and human control serum using kinetic spectrophotometry

2008 ◽  
Vol 73 (8-9) ◽  
pp. 879-890 ◽  
Author(s):  
Snezana Mitic ◽  
Gordana Miletic ◽  
Aleksandra Pavlovic ◽  
Biljana Arsic ◽  
Valentina Zivanovic
Keyword(s):  
Rapid Determination ◽  
Pharmaceutical Formulations ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Kinetic Spectrophotometry ◽  
Human Control ◽  
Control Serum ◽  
Tangent Method ◽  
Kinetic Spectrophotometric

The aim of this work was to develop a new kinetic spectrophotometric method for the determination of ibuprofen in pharmaceutical formulations. Ibuprofen was determined in an acidic ethanolic medium by monitoring the rate of appearance of 1-nitroso-2-naphthol, resulting from the displacement by ibuprofen of Co(III) from the tris(1-nitroso-2-naptholato)cobalt(III) complex. The optimum operating conditions regarding reagent concentrations and temperature were established. The tangent method was adopted for constructing the calibration curve, which was found to be linear over the concentration range 0.21-1.44 and 1.44-2.06 ?g ml-1. The optimized conditions yielded a theoretical detection limit of 0.03 ?g ml-1 based on the 3.3 S0 criterion. The interference effects of the usual excipients of powdery drugs, foreign ions and amino acids on the reaction rate were studied in order to assess the selectivity of the method. The developed procedure was successfully applied for the rapid determination of ibuprofen in commercial pharmaceutical formulations and human control serum. The unique features of this procedure are that the determination can be performed at room temperature and the analysis time is short. The newly developed method is simple, inexpensive and efficient for use in the analysis of a large number of samples.

A novel comprehensive procedure for determination of optimum operating conditions for cleaner energy production system

2018 ◽  
Vol 42 (10) ◽  
pp. 3339-3350 ◽  
Author(s):  
Yuhao Huang ◽  
Li Shui ◽  
Saeed Asghari ◽  
Paweena Prapainainar ◽  
Akhil Garg ◽  
...  
Keyword(s):  
Production System ◽  
Energy Production ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Energy Production System

A New Method for the Determination of the Nitrogen Content of Tobacco. Application of the "Coleman" Nitrogen Analyser / Eine neue Methode zur Stickstoff-Bestimmung im Tabak: Die Anwendung des „Coleman“ Stickstoff-Analysators

1966 ◽  
Vol 3 (5) ◽  
Author(s):  
A.J. Artho ◽  
A. Cossy
Keyword(s):  
Nitrogen Content ◽  
Operating Conditions ◽  
New Method ◽  
Optimum Operating ◽  
Efficient Catalyst ◽  
Kjeldahl Method

AbstractThe present paper gives an account of tests carried out with the automatic ''Coleman'' apparatus to determine the nitrogen content of tobacco. Preliminary experiments made with different tobacco types led to the determination of optimum operating conditions which give exact and reproducible results. The values obtained by this procedure are the same as, or slightly superior to, those obtained by using the Kjeldahl method associated with the use of an efficient catalyst.

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