AI Article Synopsis
- A new method using graphite furnace atomic absorption spectrometry (GFAAS) was created to measure mercury levels in fish muscle tissue from the Brazilian Amazon.
- This method involves acid mineralization of fish samples in an ultrasonic cold water bath, enhancing sensitivity and speed.
- The use of copper nitrate and sodium tungstate helped stabilize mercury during testing, achieving limits of detection and quantification of 0.014 and 0.047 mg kg(-1), respectively.
Article Abstract
In the present study, a simple, rapid and sensitive method was developed for the determination of mercury concentrations in the muscle tissue of fish from the Brazilian Amazon using graphite furnace atomic absorption spectrometry (GFAAS) following acid mineralization of the samples in an ultrasonic cold water bath. Using copper nitrate as a chemical modifier in solution and sodium tungstate as permanent modifier, we were able to attain thermal stabilization of the mercury up to the atomisation temperature of 1600 °C in the GFAAS assay. The calculated limits of detection (LOD) and quantification (LOQ) were 0.014 and 0.047 mg kg(-1), respectively.
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| http://dx.doi.org/10.1016/j.foodchem.2013.05.008 | DOI Listing |
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