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血液保养液中枸橼酸钠常用中和法测定,以橙黄Ⅳ为指示剂[济南部队后勤部卫生部编.药局技术操作手册.山东科技出版社,1982:706],由于终点不明显,测量误差较大。我们采用电位法,以反对数作图求出等当点测定其含量,结果与非水法比较,效果较好。仪器与药品 25型酸度计:指示电极(221型玻璃电极);参比电极(222型饱和甘汞电极)。枸橼酸钠(注射用,符合中国药典1977年版标准,天津柠
Blood maintenance solution sodium citrate commonly used neutralization method to determine the orange yellow Ⅳ [Jinan Military Logistics Department of Health Code. Pharmacy Technical Manual. Shandong Science and Technology Press, 1982: 706], because the end is not obvious, Measurement error is larger. We use the potential method, using the logarithm plot to determine the equivalent point determination of its content, the results compared with the non-aqueous method, the effect is better. Instruments and pharmaceuticals 25 Acidity meter: Indicator electrode (221 glass electrode); Reference electrode (222 saturated calomel electrode). Sodium citrate (for injection, in line with the Chinese Pharmacopoeia 1977 version of the standard, Tianjin lemon