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Citation: Guo Dingli, Zhang Qiang, Yin Guanghua. STUDIES ON PVC MEMBRANE ELECTRODES Ⅳ. DEVELOPMENT OF UNDECYLENIC ACID RADICAL PHARMACEUTICAL ELECTRODE[J]. Chinese Journal of Applied Chemistry, ;1986, 3(5): 89-91. shu

STUDIES ON PVC MEMBRANE ELECTRODES Ⅳ. DEVELOPMENT OF UNDECYLENIC ACID RADICAL PHARMACEUTICAL ELECTRODE

1.
1. Department of Chemistry, Chengdu University of Science and Technology;
2.
2. Department of Materia Medica, Huaxi Medical University, Chengdu

Received Date: 26 November 1985
Available Online: 3 February 1986

A radical electrode of PVC membrane based on an associated substance of quaternary ammonium salt 7402 [CH₃(C_nH_2n+1)₃NCl, n=9-11] or 336S [CH₃(C₈H₁₇)₃NCl] and undecylenic acid radical was described. The electrode made of 7402 ammonium salt exhibites a linear response to undecylenic acid anion in alkaline solution with concentration ranging from 1. 2×10^-5 to 5. 2×10^-1M. Limit of detection is 7.5×10^-6 M.The proposed electrode may be used for pharmaceutical analysis.
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