摘要
用原子吸收分光光度计的火焰法测定盐湖卤水中的锶含量,探讨在酸性介质中,用硝酸镧和硝酸铯的混合溶液作为消电离剂和掩蔽剂,根据定量分析要求,对仪器检测条件、硝酸镧和硝酸铯的用量、以及方法的检测限、精密度、准确度及回收率进行试验,并进行了实样检测。结果在文章提出的限定条件下,方法的最低检测浓度为0.01mg/L,线性范围0.05-10.00mg/L适宜的测定范围为0.1～5.0mg/L,回收率在95.0%-105.0%之间。结论该方法能满足定量分析要求,硝酸镧和硝酸铯的混合盐起到了较好的抗干扰和增感作用,在实际工作中简便易行。
Flame atomic absorption spectrophotometer method for the determination of strontium content in the salt lake, explore the ionizer, and masking agents in acidic medium with a mixed solution of lanthanum nitrate and cesium nitrate as a consumer, according to the quantitative analysis of the requirements of the equipment conditions,the amount of lanthanum nitrate and cesium nitrate, as well as the detection limit, precision, accuracy and recovery test, and a real kind of detection. Results in the articles proposed under limited conditions, the minimum detectable concentration of the method for the 0.01 mg/L, the linear range of 0.05-10.00 mg/L of the appropriate measurement range is 0.1 to 5.0mg/L, recoveries of 95.0% -105.0% between. Conclusion The method is able to meet the quantitative analysis of requirements, lanthanum nitrate and cesium nitrate mixed salt played a better anti-interference and sensitization, in practical work is simple.
出处
《河南科技》
2013年第5X期216-217,共2页
Henan Science and Technology
关键词
锶含量
硝酸镧
硝酸铯
火焰原子吸收
content of strontium
lanthanum nitrate
cesium nitrate flame atomic absorption
