应用化学 ›› 1985, Vol. 0 ›› Issue (3): 45-49.
• 研究论文 • 上一篇 下一篇
孙志胜, 章咏华
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Sun Zhisheng, Zhang Yonghua
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摘要： 用热压法制备了以功能高分子为活性物的PVC膜氯离子选择电极。合适的压膜温度为108—120℃,压力为50—130kg/cm2。电极的线性范围1×10-1～2×10-4M,检测下限8×10-5M,稳定性好,寿命长,适用pH范围宽,抗毒化能力强,响应快,内阻小。测定了电极内阻-活化时间曲线,认为活化过程同时是内阻降低至稳定的过程。
Abstract: A PVC membrane chloride ion-selective electrode with functional polymers as active materials was prepared by thermocompression of its pellet. No plasticizer was added in membrane and no leaching of active materials was experienced. The electrode exhibits Nernstion response in the range from 1?10-1M to 2?10-4M for Cl- and is characterized by very fast response, longer service life, wider pH range in application and small internal resistance. The curves of electrode resistance against preconditional time was obtained. The conditioning of the electrode is related to the constant value of its internal resistance upon gradual decrease with increase of preconditional time.
孙志胜, 章咏华. 功能高分子膜离子选择电极研究 Ⅲ.压片PVC膜氯离子选择电极的研制[J]. 应用化学, 1985, 0(3): 45-49.
Sun Zhisheng, Zhang Yonghua. STUDIES ON FUNCTIONAL POLYMER MEMBRANE ION-SELECTIVE ELECTRODES Ⅲ.PREPARATION OF PVC MEMBRANE CHLORIDE ELECTRODE WITH PRESSED PELLET[J]. Chinese Journal of Applied Chemistry, 1985, 0(3): 45-49.
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