我们分别采用离子色谱法和氟离子选择电极法对茶叶中氟化物的含量进行测定。
We tested the quantity of fluoride in tea leaves by separately using fluorinion selective electrode and the ion chromatographys.
评估用电极法测定环境空气中氟化物的不确定度在环境监测分析中是一个复杂和繁琐的事。
The uncertain degree of evaluating fluoride in air environment with electrode is a complicated task in environmental monitoring analysis.
方法：分别采用离子色谱法和氟离子选择电极法对茶叶中氟化物的含量进行测定，并将结果进行比较。
Methods:First, we tested the quantity of fluoride in tea leaves by separately using fluorinion selective electrode and the ion chromatography and then compared the results.
目的：测定南澳县水源水中氟化物的背景值及其它相关水质指标。
Objective: To measure the background fluoride and related water quality indices in water source of Nan 'ao County.
研究了采用氟离子浓度计测定桑叶氟化物含量的方法，探讨了不同样本制备方法对测定结果的影响。
A serviceable method of determining mulberry leaf fluoride with a Fluorine ion counter was studied, two sample prepared methods to determine influence of result was probed.
水质。用液态离子色谱法测定已溶解的阴离子。第2部分：在废水中溴化物氟化物硝酸盐亚硝酸盐正磷酸盐和硫酸盐的测定。
Water quality - determination of dissolved anions by liquid chromatography of ions - part 2 : determination of bromide, chloride, nitrate, nitite, orthophosphate and sulfate in waste water.
应用衍生气相色谱法测定含氟稀土精矿焙烧逸出气体中的氟化物。
Derivative gas chromatography is used to analyze the fluorinated compound derived from the gas out of the rare earth concentrates containing fluorine.
目的：测定应用氟化物的不同方法对釉质吸收氟离子的影响。
Objective: To determine which method of topical fluoride application could make the enamel uptake more fluoride.
死亡率的百分比，和氟化物，钠和电导率的均值估计在每个水族馆期间，重复的氟化物生物测定是列于表2 。
Mortality percentages, and fluoride, sodium and conductivity mean values estimated in each aquarium during duplicate fluoride bioassays are presented in Table 2.
满足地表水监测分析方法中关于氟化物测定的限值要求。
To content the Limit requirements of Determinefluoride about analysis of surface water monitoring.
满足地表水监测分析方法中关于氟化物测定的限值要求。
To content the Limit requirements of Determinefluoride about analysis of surface water monitoring.
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