✦ LIBER ✦

Internal Solid Contact Electrode for the Determination of Salbutamol Sulfate in Pharmaceutical Formulation

✍ Scribed by Xian Xiang Sun; Ling Zhi Sun; Hassan Y. Aboul-Enein

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 101 KB
Volume: 12
Category: Article
ISSN: 1040-0397
DOI: 10.1002/1521-4109(200007)12:11<853::aid-elan853>3.0.co;2-l

No coin nor oath required. For personal study only.

✦ Synopsis

An internal solid contact salbutamol ion-selective sensor was fabricated based on a conducting poly(aniline) ®lm immobilized on a glassy carbon electrode surface and a plasticized poly(vinyl chloride) (PVC) sensing membrane containing an ion-pair complex of salbutamol (SB) with tetraphenylborate. Effects of various conditions for the electropolymerization of aniline, including the conducting support, aniline concentration, solution pH and polymer ®lm thickness were investigated. The sensor showed a Nernstian slope of 60.4mV/decade (25 C) in the SB concentration range of 1.0610 71 to 4.0610 75 M, low detection limit (1.2610 75 M), and fast response time(15 & 30 s). This sensor was successfully applied to the determination of SB in the pharmaceutical preparation which showed 99.1±100.6 % recovery.

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