| 高效液相色谱法测定茶叶和土壤中的氟 |
| 摘要点击 702 全文点击 1159 投稿时间：1997-09-11 |
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| 中文关键词 氟 高效液相色谱法 茶叶 土壤 |
| 英文关键词 fluoride high performance liquid chromatography tea soil |
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| 中文摘要 |
| 建立了测定氟的高效液相色谱法,并通过加入三乙胺使F——La3+-茜素氨羧络合剂体系更稳定。C18柱,甲醇-水(18:82)作流动相,流速为lml/min,检测波长为566nm.本法线性范围为0.010-1.0μg/ml,相关系数为0.9991,检出限为1ng/ml.用于茶叶和土壤样品测定时,相对标准偏差为4.6%-7.3%,加标回收率为91%-104%. |
| 英文摘要 |
| A method for the determination of fluoride by high performance liquid chromatography has been established.The F--La3+ Alizarin complexon chelate becomes more stable by adding triethylamine.The chromatographic conditions are column,Shim Pack CLC ODS;mobile phase, methanol-water(18:82);flow rate,l ml/min;detection wavelength,566 nm.The linear range is from 0.010 μg/ml to 1.0 μg/ml with a correlation coefficient of 0.9991.The detection limit of fluoride is l ng/ml.The method has been applied to the analysis of tea and soil.The RSD is in the range of 4.6%—7.3% and the recovery is from 91% to 104%. |
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