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基于在pH=5.4的醋酸-醋酸钠缓冲溶液中,银(Ⅰ)可与邻菲罗啉形成配阳离子[Ag(Phen)2]+,进而与肝素钠结合形成离子缔合物,使溶液的RRS强度显著增强这一现象,建立了一种简便、快速、灵敏度高的检测肝素钠的方法,考察了方法的适宜反应条件、影响因素和共存物质的影响,对肝素钠的检出限为20 ng/mL,并将该方法应用于实际样品的测定.
Based on the formation of cations [Ag (Phen) 2] + with phenanthroline in silver acetate-sodium acetate buffer solution with pH = 5.4, silver (Ⅰ) can combine with heparin to form ion- RRS intensity was significantly enhanced, a simple, rapid and sensitive method for the determination of heparin was established. The suitable reaction conditions, influencing factors and coexisting substances were investigated. The detection limit of heparin sodium was 20 ng / mL, and the method is applied to the actual sample determination.