XINXiao-dong,SUNShao-hua,LIUHong,et al.Determination of Tetraethyl Lead in Water by SPE/GC/ICP?MS[J].China Water & Wastewater,2022,38(No.3):126-130.
Determination of Tetraethyl Lead in Water by SPE/GC/ICP?MS
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
No.第3
Page:
126-130
Column:
Date of publication:
2022-02-01
- Keywords:
- urban water system; tetraethyl lead; solid phase extraction; gas chromatography; inductively coupled plasma mass spectrometry
- Abstract:
- A method for determination of tetraethyl lead concentration in water by gas chromatography and inductively coupled plasma mass spectrometry (GC/ICP?MS) was proposed. The water samples were enriched by solid phase extraction and separated by GC, and the concentration of tetraethyl lead was determined by ICP-MS. Tetraethyl lead showed a good linear relationship with the response signal in the range of 0.05-5.00 μg/L. If 1.0 L water sample was concentrated to 5.0 mL (the concentration time was 200), the detection limit of the method was 5 ng/L. Under the optimized analytical conditions, the standard recoveries of two methods with tetraethyl lead concentrations of 5×10-5 mg/L and 5×10-4 mg/L were evaluated. The recoveries of surface water and drinking water ranged from 80.7% to 108%, and the relative standard deviations were from 3.9% to 6.2% (n=6)．The method is simple and sensitive, and can meet the requirements of trace detection of tetraethyl lead in urban water system.
Last Update:
2022-02-01