1. Kumazawa T, Seno H, Suzuki O (1992) Rapid isolation with Sep-Pak C18 cartridges and wide-bore capillary gas chromatography of bromisovalum. J Anal Toxicol 16:163–165
2. Okada H, Ohashi K (1998) Highly sensitive determination of bromvalerylurea in human blood by gas chromatography after derivatization. Jpn J Forensic Toxicol 16:25–33
3. Kokatsu J, Yomoda R, Suwa T (1992) Selected ion monitoring for the determination of bromovalerylurea in human plasma. Chem Pharm Bull 40:1517–1519
4. Miyauchi H, Ameno K, Fuke C et al. (1991) Simultaneous determination of bromvalerylurea, bromodiethylacetylurea, and allylisopropylacetylurea in serum and urine by high-performance liquid chromatography with a multiwavelength UV detector and thin-layer chromatography. J Anal Toxicol 15:123–125
5. Tanaka E, Nakamura T, Nagashima A et al. (2001) Determination of plasma bromvalerylurea and its main metabolite by a simple high-performance liquid chromatographic method and quantitation of bromide by energy dispersive X-ray spectrometry in carbon tetrachloride-intoxicated rats. J Chromatogr B 759:361–366