Determination of Lead and Ferrum in Pre-mixture Coating Film by Atomic Absorption Spectrometry
- VernacularTitle:原子吸收分光光度法测定薄膜包衣预混剂中的铅、铁含量
- Author:
Ying YANG
;
Yan JIANG
;
Naijiang CHEN
- Publication Type:Journal Article
- Keywords:
Atomic absorption spectrometry method;
Pre-mixture coating film;
Lead;
Ferrum
- From:
China Pharmacist
2015;18(10):1805-1807
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish an atomic absorption spectrometry method for the determination of lead and ferrum in pre-mix-ture coating film. Methods:The samples were digested by microwave digestion system, and Pb was determined by graphite atomic ab-sorption spectrometry(GFAAS), and Fe was determined by flame atomic absorption spectrometry(FAAS). Results: There was good linear relationship within the range of 1.0-5.0 μg·L-1(r=0.999 4) for lead and 0.1-1.0 mg·L-1(r=0.998 4) for ferrum. The recovery of lead was 91. 3%(RSD=1. 4%,n=9)and that of ferrum was 89. 9%(RSD=3. 5%,n=9). Conclusion: The method is accurate and stable, which can be used for the determination of lead and ferrum in pre-mixture coating film
