Determination of Ferric Oxide in Calamine Powder by FAAS
- VernacularTitle:火焰原子吸收光谱法测定炉甘石粉中三氧化二铁的含量
- Author:
Dongmei SONG
;
Yang CHEN
;
Wenming JIANG
;
Yongjian YANG
- Publication Type:Journal Article
- Keywords:
FAAS;
Calamine powder;
Ferric oxide
- From:
China Pharmacist
2016;19(4):806-807
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To determine the content of ferric oxide in calamine powder. Methods:Flame atomic absorption spectrom-etry ( FAAS) was used to determine the content of ferric oxide. The determination results were compared with those of the titration method. Results:There was a good linear relationship between the absorbance and the concentration of iron within the range of 0. 5-4μg·ml-1 , the relative standard deviation of the repeatability test was 1. 2%, the average recoveries were 100. 4% and 99. 4%, the limit of quantitation and detection was 0. 081 μg·ml-1 and 0. 024 μg·ml-1 , respectively. Conclusion:The method of FAAS is ac-curate and quick with good specificity and high sensitivity, which can be used for the determination of ferric oxide in calamine powder.
