Rapid Determination of Lead，Manganese，and Iron in Gasoline withAtomic Absorption Spectrophotometry
[1]YANG Zhi-ling.Rapid Determination of Lead，Manganese，and Iron in Gasoline withAtomic Absorption Spectrophotometry[J].Journal of Zhengzhou University (Engineering Science),2013,34(04):110-114.[doi:10.3969/j.issn.1671-6833.2013.04.026]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 04
Page number:
110-114
Column:
Public date:
2013-09-09
- Title:
- Rapid Determination of Lead，Manganese，and Iron in Gasoline withAtomic Absorption Spectrophotometry
- Keywords:
- atomic absorption spectrophotometer; gasoline; lead; manganese; iron
- CLC:
- TN911
- Abstract:
- Abstract: An atomic absorption spectrophotometry method for the determination of Pb，Mn，and Fe in motorgasoline was studied. Digestion method for pretreatment of samples was proposed. And comparison of methodbetween this work and national standard was carried out.The results showed that the linear relation betweenabsorbance and ion concentration were good in the range of 0 ~4 mg ·L-’. The correlation coefficients wereall more than 0.999.The detection limit of Pb，Mn，and Fe which were all lower than the quantitative lowerlimits of national standard were 0.023 mg · L ’,0.068 mg · L’， and 0.012 mg ·L ’ , respectively.Theaverage error and relative standard deviation of measurement were all lower than 0.02 which showed that thep-recision and accuracy of this method is satisfied. The values of recovery of Pb，Mn， and Fe were in the rangeof 92.5% ~98.1% ,95.6% ~106.2% , and 96.8% ~107.1 % , respectively. It showed that the recovery ishigh and the method is accurate.The content of Pb，Mn，and Fe in five kinds of motor gasoline were deter-mined by methods of this work and national standard with an average error lower than 3. 5% which showed thatthe method is reliable.
- References:
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Last Update:
1900-01-01