用含氟选择膜电极的流动注射系统测定牙膏、废水、天然水和钻孔水中的氟化物

Pharmaceutica acta Helvetiae Pub Date : 1999-06-01 DOI:10.1016/S0031-6865(99)00008-4

Raluca-Ioana Stefan , Jacobus F van Staden , Hassan Y Aboul-Enein

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引用次数: 16

摘要

介绍了一种以氟选择膜电极为传感器，基于流动注射概念的牙膏、废水、天然水和钻孔水中氟化物的自动测定系统。该系统适用于在10−4 ~ 10−1线性范围内(约1.9 ~ 1900 mg l−1)，采样率为60个样品h−1的氟在线监测，RSD优于0.6%。

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Determination of fluoride in toothpaste, effluent streams and natural and borehole water using a flow injection system with a fluoride-selective membrane electrode

An automated system for the determination of fluoride in toothpaste, effluent streams, natural and borehole water based on the concept of flow injection with a fluoride-selective membrane electrode as sensor is described. The system is suitable for the on-line monitoring of fluoride at a sampling rate of 60 samples h⁻¹ in the linear range 10⁻⁴–10⁻¹ (approximately 1.9–1900 mg l⁻¹) with an RSD of better than 0.6%.

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Pharmaceutica acta Helvetiae

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