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Updated: Aug 1, 2026

Integration of Miniaturized Solid Phase Extraction and LC-MS/MS Detection of 3-Nitrotyrosine in Human Urine for Clinical Applications
Published on: July 14, 2017
[Peculiarities of detection of 4-nitro-3-(trifluoromethyl)-aniline in the biological material]
V K Shormanov1, Yu V Andreeva1, V A Omel'chenko2
1Kursk State Medical University, Kursk, Russia, 305041.
Abstract:
The objective of the present work was to study peculiarities of detection of 4-nitro-3-(trifluoromethyl)-aniline in the biological material with the use of TLC, GC-MS, and electron spectrophotometry. We have proposed the rationale for the application of acetone as an insulating agent for the extraction of 4-nitro-3-(trifluoromethyl)-aniline from the cadaveric hepatic tissue and biological fluids. It was shown that this compound is possible to separate from endogenous biomaterials on the silicagel L column (40/100 mcm). The results of the quantitative evaluation of different amounts of 4-nitro-3-(trifluoromethyl)-aniline in the cadaveric hepatic tissue, blood, plasma, and urine are presented. The proposed method makes it possible to determine a minimum of 0.12 mg of 4-nitro-3-(trifluoromethyl)-aniline in 100 g of the biological material (cadaveric hepatic tissue), 0.09 mg in 100 g of blood, 0.06 mg and 0.05 mg in 100 u of plasma and urine respectively.
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