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利用极谱滴定法测定溶液中的氟离子,已有过一些报导。较早时,朗格(Langer)用硝酸钍来滴定氟离子,佩特劳(Petrow)和纳什(Nash)用形成氟氯化铅沉淀法来进行极谱滴定,卡斯托(Castor)和塞勒(Sayior)用铝——偶氮染料与氟离子形成络合物法来测定。近年来,米温(Meewen)的四价铀的滴定法,灵敏度可达2微克F-/毫升,但其误差约为±10%。哈里斯(Harris)用旋转把电极测定,灵敏度可达0.2微克F一/毫升,其误差亦为±10%。科特霍夫(Kolthoff)利用旋转铝电极来测定,灵敏度可高达0.2ppm。但用极谱滴定法来测定有机化合物中的氟的工作尚不多见。隆福德(Safford)和约翰逊(Johnson)会在通讯中报导过:将样品置于石英或自金容器中,在氧气中分解,
The use of polarographic titration of fluoride ions in solution has been reported. Earlier, Langer titrated fluoride with thorium nitrate, and Petrow and Nash performed polarographic titrations with lead chlorofluoride precipitation, Castor and plug Sayior uses aluminum-azo dyes to form complexes with fluoride ions. In recent years, Meewen’s tetravalent uranium titration method has a sensitivity of 2 μg F- / ml, but its error is about ± 10%. Harris uses a rotating electrode to measure the sensitivity up to 0.2 μg F / ml with an error of ± 10%. Kolthoff uses a rotating aluminum electrode to measure up to 0.2 ppm. However, polarographic titration to determine the fluorine in organic compounds is still rare. In the newsletter, Safford and Johnson reported that the samples were placed in quartz or gold containers, decomposed in oxygen,