Generation and destruction of unstable reagent in flow injection system: determination of acetylcysteine in pharmaceutical formulations using bromine as reagent

2005 ◽  
Vol 37 (4) ◽  
pp. 771-775 ◽  
Author(s):  
Willian Toito Suarez ◽  
Heberth Juliano Vieira ◽  
Orlando Fatibello-Filho
Keyword(s):  
Flow Injection ◽  
Pharmaceutical Formulations ◽  
Injection System ◽  
Flow Injection System

scholarly journals A novel online coupling of ion selective electrode with the flow injection system for the determination of vitamin B1

2016 ◽  
Vol 13 (2) ◽  
pp. 458-469
Author(s):  
Baghdad Science Journal
Keyword(s):  
Flow Injection ◽  
Dynamic Range ◽  
Limit Of Detection ◽  
Vitamin B1 ◽  
Pharmaceutical Formulations ◽  
Ion Selective Electrode ◽  
Injection System ◽  
Selective Electrode ◽  
Flow Injection System

A simple, fast, selective of a new flow injection analysis method coupled with potentiometric detection was used to determine vitamin B1 in pharmaceutical formulations via the prepared new selective membranes. Two electrodes were constructed for the determination of vitamin B1 based on the ion-pair vitamin B1-phosphotungestic acid (B1-PTA) in a poly (vinyl chloride) supported with a plasticized di-butyl phthalate (DBPH) and di-butyl phosphate (DBP). Applications of these ion selective electrodes for the determination of vitamin B1 in the pharmaceutical preparations for batch and flow injection systems were described. The ion selective membrane exhibited a near-Nernstian slope values 56.88 and 58.53 mV / decade, with the linear dynamic range of vitamin B1 was 5 x 10-5- 1 x 10-2 and 1 x 10-4-1 x 10-2 mol.L-1, in batch and FIA, respectively. The limit of detection was 3.5 x 10-5 and 9.5 x 10-5 mol.L-1, with the percentage linearity 98.85 and 95.22 in batch and FIA, respectively. The suggested ion selective electrode has been utilized perfection in the determination of vitamin B1 in pharmaceutical formulations using batch and flow injection system, respectively.

Spectrofluorimetric optosensing of aluminium in a flow injection system: determination of aluminium in dialysis fluids and concentrates

The Analyst ◽  
1990 ◽  
Vol 115 (5) ◽  
pp. 575-579 ◽  
Author(s):  
Maria Rosario Pereiro García ◽  
Marta Elena Díaz García ◽  
Alfredo Sanz-Medel
Keyword(s):  
Flow Injection ◽  
Injection System ◽  
Flow Injection System ◽  
Dialysis Fluids

Determination of S-perindopril using a flow injection system with an amperometric biosensor

1999 ◽  
Vol 54 (3) ◽  
pp. 261-265 ◽  
Author(s):  
Raluca-Ioana Stefan ◽  
Jacobus (Koos) F. van Staden ◽  
Hassan Y. Aboul-Enein
Keyword(s):  
Flow Injection ◽  
Amperometric Biosensor ◽  
Injection System ◽  
Flow Injection System
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