Czajka K, Latour T
Zakładu Tworzyw Uzdrowiskowych Państwowego Zakładu Higieny, Warszawie.
Rocz Panstw Zakl Hig. 1994;45(4):347-52.
The usefulness of two methods for fluorine determination in different mineral waters was compared: a spectrophotometric method using of a zirconium-xylene reagent and electrochemical using of fluoride ion-sensitive microcapillary inset electrode. The influence of the presence of chlorine, sulphate or iron ions on the fluorine determination has been evaluated in solutions containing 0.5; 1.5; 5.0 and 10.0 mg F-/1 and increasing concentration of Cl-, SO4(2-), Fe3+ ions in the range they can occur in natural mineral waters. The ion-selective method has been found more advantageous for analysis of solutions and waters of mineralization of 5 g/l and concentrations of sulphates below 1,000 mg/l in which fluorides concentrations ranges from 0 to 1.5 mg/l. For solution of higher mineralization degree containing more than 1.5 mg F-/1 and less than 1000 mg/l of sulphates, the spectrophotometric method seems to be more advantageous.
一种是使用锆-二甲苯试剂的分光光度法，另一种是使用氟离子敏感微毛细管插入电极的电化学方法。在含有0.5；1.5；5.0和10.0 mg F⁻/l以及天然矿泉水中可能出现的Cl⁻、SO₄²⁻、Fe³⁺离子浓度不断增加的溶液中，评估了氯、硫酸盐或铁离子的存在对氟测定的影响。已发现离子选择法对于矿化度为5 g/l且硫酸盐浓度低于1000 mg/l、氟化物浓度范围为0至1.5 mg/l的溶液和水的分析更具优势。对于矿化度较高、含有超过1.5 mg F⁻/l且硫酸盐含量低于1000 mg/l的溶液，分光光度法似乎更具优势。
