Fluorimetric method for determination of trace lead in alginate sodium
- VernacularTitle:荧光分光光度法测定褐藻酸钠中微量铅
- Author:
Weili LU
;
Jiachao XU
;
Xin GAO
;
Changhu XUE
- Publication Type:Journal Article
- Keywords:
fluorescence spectroscopy;
alginate sodium;
lead
- From:
Chinese Journal of Marine Drugs
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for determination of trace lead in alginate sodium.Method The lead in the samples was determined by fluorescence spectroscopy after been digested by hydrothermal decomposition.Results The detection limit of lead was 2.71?10-2?g?mL-1.The relative standard deviation of the three samples were 4.06%,1.57% and 2.12% respectively,the average recovery was 88.32%～100.8%.Conclusion The method had the advantages of simple operation,higher precision,higher sensitivity and repeatability and was suitable for the determination of trace lead in the alginate sodium
