Thiamine-reineckate liquid membrane electrode for the selective determination of thiamine (vitamin B1) in pharmaceutical preparations

The Analyst ◽  
1989 ◽  
Vol 114 (6) ◽  
pp. 735 ◽  
Author(s):  
Saad S. M. Hassan ◽  
Eman Elnemma
Keyword(s):  
Liquid Membrane ◽  
Vitamin B1 ◽  
Pharmaceutical Preparations ◽  
Membrane Electrode ◽  
Selective Determination ◽  
Liquid Membrane Electrode

Liquid membrane electrode for selective determination of thiocyanate

The Analyst ◽  
1987 ◽  
Vol 112 (12) ◽  
pp. 1709 ◽  
Author(s):  
Saad S. M. Hassan ◽  
M. A. M. F. Elmosalamy
Keyword(s):  
Liquid Membrane ◽  
Membrane Electrode ◽  
Selective Determination ◽  
Liquid Membrane Electrode

New Liquid Membrane Electrode for Determination of Lidocaine in Local Anesthetic Formulations

1986 ◽  
Vol 69 (4) ◽  
pp. 618-620
Author(s):  
Saad S M Hassan ◽  
Mona A Ahmed
Keyword(s):  
Local Anesthetic ◽  
Liquid Membrane ◽  
Pharmaceutical Preparations ◽  
Ion Pair ◽  
Membrane Electrode ◽  
Lidocaine Concentration ◽  
Ph Range ◽  
Liquid Membrane Electrode ◽  
The U.S

Abstract A new lidocaine-responsive liquid membrane electrode based on the use of the lidocaine reineckate ion pair complex in nitrobenzene solvent has been developed. The electrode displays a linear response for 10-2-10-5M lidocaine over the pH range of 3-6.5. The response time varies from 35 s to 1 min depending on the lidocaine concentration. The life span of the electrode is at least 1 month. Excipients and diluents commonly used in local anesthetic formulations do not interfere. Determination of lidocaine in some pharmaceutical preparations gives results with an average recovery of 99% of the nominal values and a mean standard deviation of 1.7% which compare favorably with those obtained by the U.S. Pharmacopeia method.

Novel Liquid Membrane Electrode for Selective Determination of Monohydrogenphosphate

2003 ◽  
Vol 15 (2) ◽  
pp. 139-144 ◽  
Author(s):  
Mohammad Reza Ganjali ◽  
Farhang Mizani ◽  
Mehdi Emami ◽  
Masoud Salavati Niasari ◽  
Mojtaba Shamsipur ◽  
...  
Keyword(s):  
Liquid Membrane ◽  
Membrane Electrode ◽  
Selective Determination ◽  
Liquid Membrane Electrode
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