ISSN 1006-3021 CN11-3474/P
Published bimonthly started in 1979
便携式锂钾分析仪在钾盐资源现场勘查中的应用
  
关键词:portable  Li-K analyzer  potassium salt  on-site analysis
基金项目:国家重点研发计划项目(编号: 2016YFC0600605);基本科研业务费项目(编号: JYYWF20181701)
作者单位E-mail
刘晓 国家地质实验测试中心 lx761609253@126.com 
袁继海 国家地质实验测试中心  
孙东阳 国家地质实验测试中心  
樊兴涛 国家地质实验测试中心  
詹秀春 国家地质实验测试中心 zhanxiuchun2012@126.com 
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摘要:
On-site Application of Portable Li-K Analyzer in the Exploration of Potash Resources
      Sylvine, as the main raw material of potash fertilizer among the three major agricultural fertilizers, is an important guarantee for national food security and one of the seven scarce bulk strategic mineral resources in China. Currently, soluble potash resources are mainly available for exploitation and utilization. It is urgent to support on-site exploration and exploitation by using relevant instruments and rapid analytical technology. On the basis of ultrasonic digestion of drilling potash samples, the wavelength of characteristic spectral line of K was set at 766.49 nm, and a rapid analytical method for determination of water soluble K in potassium salt samples was established by self-developed portable Li-K analyzer, which was demonstrated and applied in drilling site. Under the optimum operating conditions, the detection limit of K was 9.0 μg/L and the measured precision (RSD) was better than 2%. The standard addition recovery experiments of potassium salt samples were all within the range of 94.5%~106.7%. The on-site analytical results of potassium salt samples agreed well with those by laboratory ICP-AES measurements, which shows that the accuracy of rapid field analytical method is good and can meet the requirements of geological survey and resource exploration. This work has laid a practical foundation for real-time guidance of on-site exploration and exploitation of potassium salt resources by providing scientific information and technical support.
LIU Xiao,YUAN Ji-hai,SUN Dong-yang,FAN Xing-tao,ZHAN Xiu-chun.2021.On-site Application of Portable Li-K Analyzer in the Exploration of Potash Resources[J].Acta Geoscientica Sinica,42(4):573-578.
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