This invention relates to a reagent and use of that reagent for detecting adulterants in aqueous samples, particularly in biological specimens such as urine samples using a diazo dye precursor such as N,N diethyl-1,4-phenylene diamine and a reagent such as creatinine to stabilize a colored intermediate formed by the reaction of the diamine with nitrite ions for a period sufficient to allow that color to be recorded and compared with a separate peak formed by a halogen-based oxidizing agent which may be present in solution.
本发明涉及一种试剂和该试剂在检测
水样,特别是尿样等
生物样本中的掺假物时的用途,该试剂使用重氮
染料前体(如 N,N-二乙基-1,4-亚苯基二胺)和试剂(如
肌酐)来稳定二胺与
亚硝酸根离子反应形成的有色中间体,稳定时间足以记录该颜色,并与溶液中可能存在的卤基氧化剂形成的单独峰值进行比较。