Determination of Fe and Zn in Compound Minerals by Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) with Ultrasonic Acid Extraction
Received:March 22, 2022  Revised:March 22, 2022
View Full Text  View/Add Comment  Download reader
DOI:10.3969/j.issn.2095-1035.2022.03.021
KeyWord:Minerals ; Iron; Zinc; Ultrasonic ; ICP-OES
  
AuthorInstitution
DING Yu-long 上海市质量监督检验技术研究院
Hits: 589
Download times: 264
Abstract:
      A method for the determination of iron and zinc in meal compound minerals by ultrasonic acid extraction ICP-OES method was developed. 10% nitric acid was used as pretreatment reagent, using ultrasonic assisted extraction. The experimental conditions was optimized, the interference was eliminated. Some experiments including detection limit, precision and accuracy was performed. The detection limit of iron and zinc was 1mg/kg and 0.5mg/kg , while the linear range was 0 ~5.0 mg/L and the linear coefficient (r) is better than 0.995. The precision of the method (RSD %) were less than 5.0%. The determined iodine contents were in good agreement with the certified values. The recoveries of real samples are from 91.4% to 107.9%. The experiments showed that this method was sensitive, simple and rapid, and accurate for the determination of iron and zinc contents in meal compound minerals .
Close