Comparison of Determination Methods Between F-AAS and GF-A AS for Chromium and its Compounds in the Air of Workplaces
The flame atomic absorption spectroscopy(F-AAS method)at a wavelength of 357.9 nm and the graphite furnace atomic absorption spectroscopy(GF-AAS method)at 357.9 nm and 429.0 nm were used to determine chromium and its compounds in the air of workplaces.Multiple indicators such as detection limit,precision,and accuracy were compared and analyzed.The results indicate that all three methods can meet the requirements of quality control and occupational health standard formulation guidelines.The GF-AAS method is superior to the F-AAS method in terms of detection limit and quantification limit.The GF-AAS method has better results than 429.0 nm at a wavelength of 357.9 nm.However,in daily work,the detection method needs to be selected based on the specific concentration of chromium in the air of the workplace.
workplace air qualitygraphite furnace atomic absorption spectroscopyglame atomic absorption spectroscopychromium
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