Carrell R W, Lehmann H
J Clin Pathol. 1981 Jul;34(7):796-9. doi: 10.1136/jcp.34.7.796.
Whereas the addition of four moles of zinc acetate to one of normal human haemoglobin at pH 7.4 results in a clear solution, addition to unstable haemoglobin results in precipitate formation. Within certain limits no false-positive results are obtained with methaemoglobin, and with fetal haemoglobin. With excess zinc, normal haemoglobin also precipitates, but this process is reversible and can be used for a rapid concentration of dilute solutions of normal haemoglobin.
在pH 7.4的条件下,向一摩尔正常人血红蛋白中加入四摩尔醋酸锌会得到澄清溶液,而加入到不稳定血红蛋白中则会形成沉淀。在一定限度内,高铁血红蛋白和胎儿血红蛋白不会产生假阳性结果。锌过量时,正常血红蛋白也会沉淀,但这个过程是可逆的,可用于快速浓缩正常血红蛋白的稀溶液。