Capture Mercury Gold Cartridge-Preconcentration and Determination of Mercury in Particulates of Air Conditioner by Domestic Cool Vapor Atomic Fluorescence Spectrometry
10.3724/SP.J.1096.2010.00296
- VernacularTitle:捕汞金管富集-冷原子荧光光谱法测定空调颗粒物中的汞
- Author:
Jianping LU
;
Li WANG
;
Suisui MO
- Publication Type:Journal Article
- Keywords:
Cool atomic fluorescence;
Particulate;
Mercury;
Preconcentration
- From:
Chinese Journal of Analytical Chemistry
2010;38(2):296-298
- CountryChina
- Language:Chinese
-
Abstract:
The sample introduction system of a cool vapor atomic fluorescence spectrometer made domestically was modified for taking the mercury vapor which was pre-concentrated in a capture mercury gold cartridge as gold amalgam generated on-line by pyrolyzing atmospheric particulate collected from an air conditioner. The temperatures that applied) to sample pyrolyzer to generate elemental mercury and capture mercury gold cartridge to release mercury from amalgam were 700-750 ℃ and 550 ℃, respectively. The carrier Ar flow rate was 120 mL/min. The method detection limit was 1 pg, mercury content showed a linear relationship in 0-1.5 ng), and RSD was 2.2%. The method was validated by determining mercury in the national soil standards) GBW07410. The method was Applied to determine the mercury content in the atmospheric particulate from a hospital air conditioner.
