離子色譜法測定碳酸鋰中氯離子和硫酸根離子的含量
[Abstract]:The lithium carbonate sample 0.500g was dissolved with water, and the liquid was fixed to 100mL. to separate the liquid 10.00mL on the basis of no carbon acid base. The anion exchange column Dionex IonPac AS11 was used as the separation column and the produced 15mmol. L~ (-1) KOH solution produced by the potassium hydroxide leaching solution was the mobile phase. The chromatographic separation and determination of 1.0mL. Min~ (-1) and column temperature at 30 C. The linear range of chloride and sulfate radical ions is within 16.0mg. L~ (-1) and 3.2mg. L~ (-1) respectively. The detection limit (3s/k) is 0.004,0.01mg L~ (3s/k). The precision test of the same sample is carried out. The relative standard deviation of the measured value is less than the standard addition method The recovery test was carried out and the recovery rate was between 93.8%~106%. The results of the analysis showed that the results of the samples were in agreement with the results of the electrochemical method and the on-line removal of the matrix ion chromatography.
【作者單位】: 中國科學(xué)院上海硅酸鹽研究所;
【基金】:上海市無機(jī)非金屬材料分析測試表征專業(yè)技術(shù)服務(wù)平臺(tái)資助(14DZ2292900)
【分類號(hào)】:TQ131.11;O657.7
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