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Direct amperometric determination of tert-butylhydroquinone in biodiesel.
Tormin TF, Gimenes DT, Silva LG, Ruggiero R, Richter EM, Ferreira VS, Muñoz RA. Tormin TF, et al. Among authors: richter em. Talanta. 2010 Sep 15;82(4):1599-603. doi: 10.1016/j.talanta.2010.07.011. Epub 2010 Jul 31. Talanta. 2010. PMID: 20801379 Free article.
Simultaneous determination of caffeine, paracetamol, and ibuprofen in pharmaceutical formulations by high-performance liquid chromatography with UV detection and by capillary electrophoresis with conductivity detection.
Cunha RR, Chaves SC, Ribeiro MM, Torres LM, Muñoz RA, Dos Santos WT, Richter EM. Cunha RR, et al. Among authors: richter em. J Sep Sci. 2015 May;38(10):1657-62. doi: 10.1002/jssc.201401387. Epub 2015 Apr 20. J Sep Sci. 2015. PMID: 25773878
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