Determination of Sulfate Ion in Ferric Oxide Powder by Ion Chromatography

To establish a method for the determination of sulfate ion in ferric oxide powder by ion chromatography with suppression conductivity detector. The hydrochloric acid was used to decomposed samples, with 1.0 mmol/L sodium bicarbonate and 3.2 mmol/L sodium carbonate as mobile phase, and the flow rate...

Full description

Saved in:
Bibliographic Details
Published inKuangchan Zonghe Liyong Vol. 46; no. 4; pp. 221 - 224
Main Authors Yong LEI, Jianchun YI, Chaohui ZHAO, Hao ZHENG, Tao YU, Shujun LIU
Format Journal Article
LanguageChinese
Published Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences 01.08.2025
Subjects
ferric oxide powder
ion chromatography
mineral product analysis
sulfate ion
Online AccessGet full text
ISSN1000-6532
DOI10.12476/kczhly.202403130100

Cover

More Information
Summary:To establish a method for the determination of sulfate ion in ferric oxide powder by ion chromatography with suppression conductivity detector. The hydrochloric acid was used to decomposed samples, with 1.0 mmol/L sodium bicarbonate and 3.2 mmol/L sodium carbonate as mobile phase, and the flow rate was 0.7 mL/min, the colume temperature was 35 ℃, inject volumn was 20 μL. The results show that the sulfate had a good calibration linear ship in the range of 0.5～100 mg/L, the linear equation of sulfate was y=0.228 9x-0.038 3, R2=0.999 96. The recovery from 97.38% to 104.42%, RSD=1.01%, and the limit of detection was 0.002%. This method has the benefits of easy operation, highly sensitive, and good reproducibility. It can be used as a quality detection method of sulfate ion in ferric oxide powder.
ISSN:1000-6532
DOI:10.12476/kczhly.202403130100