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H. W. Sun, L. X. Wang, N. Liu, F. X. Qiao and S. X. Liang, “SPE Then RP-LC for Simultaneous Analysis of Cyromazine and Its Metabolite Melamine in Liquid Milk and Egg,” Chromatographia, Vol. 70, No. 11, 2009, pp. 1685-1689. doi:10.1365/s10337-009-1355-x

has been cited by the following article:

• TITLE: Organic Solvent-Free and Simple Method for Determining Cyromazine and Its Metabolite, Melamine, in Cow’s Milk

  AUTHORS: Naoto Furusawa

  KEYWORDS: Cyromazine; Melamine; HPLC-PDA; Milk: Organic Solvent-free

  JOURNAL NAME: Journal of Analytical Sciences, Methods and Instrumentation, Vol.2 No.2, June 29, 2012

  ABSTRACT: This paper described an organic solvent-free, rapid, simple, and space-saving method of sample preparation followed by HPLC coupled photo-diode array (PDA) detector for simultaneous quantification of cyromazine (CYR) and its decy-cropropylated metabolite, melamine (MEL), in milk. The HPLC-PDA was performed on an Inertsil? HILIC column with an isocratic aqueous mobile phase. Analytes were extracted from the sample using water, and purified by Mono-Spin?-C18, a centrifugal monolithic silica spin mini-columns, and quantified within 20 min. The method, performed under 100% aqueous conditions, obtained average recoveries for CYR and MEL in the range of 93.2% - 99.1% with relative standard deviations ≤ 2.8%. The quantitation limits were 8.5 ng/mL for CYR and 10 ng/mL for MEL, respectively. No organic solvents were used at any stage of the analysis.