NDLI: Determination of Methylmercury in Biological Samples Using Dithizone Extraction Method Followed by Purge & Trap GC-MS

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Determination of Methylmercury in Biological Samples Using Dithizone Extraction Method Followed by Purge & Trap GC-MS

Content Provider	Semantic Scholar
Author	Lee, Jung-Sub Ryu, Yoon-Jung Park, Jungwon Jeon, Sung-Hwan Kim, Sam-Cwan Kim, Young Hee
Copyright Year	2007
Abstract	In this study, a dithizone extraction technique involving purge & trap GC-MS was developed for the determination of methylmercury in biological samples, especially blood and fish. After alkaline digestion, methylmercury in biological samples was extracted into dithizone and back-extracted into aqueous sulfide solution. The extracted methylmercury was converted to the volatile ethyl derivative, purged and trapped onto a solid-phase collection medium, and then introduced into the GC-MS system. The determined MDLs of the established method were 0.9 ng·g -1 for biological samples and its accuracy and precision were found to be 93% and 3.8%, respectively. The method was validated by analysis of CRMs such as SRM 966, BCR 463 and IAEA 407 and all analytical results were within certified ranges with average RSDs of less than 6%. The analytical results of field-sampled fish also showed that the method can be successfully used as an alternative for commonly used distillation method followed by GC-CVAFS detection.
Starting Page	2293
Ending Page	2298
Page Count	6
File Format	PDF HTM / HTML
DOI	10.5012/bkcs.2007.28.12.2293
Volume Number	28
Alternate Webpage(s)	http://ocean.kisti.re.kr/downfile/volume/chemical/JCGMCS/2007/v28n12/JCGMCS_2007_v28n12_2293.pdf
Alternate Webpage(s)	https://doi.org/10.5012/bkcs.2007.28.12.2293
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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