尿和脑脊液蛋白定量测定,是临床检验中最常用的项目之一,对肾脏和脑、神经系统疾患的诊断具有重要价值。目前国外大多采用比浊法和各种染料结合比色法,后者方法优劣仍在探索中。国内各实验室用于尿蛋白定量测定的方法较多,主要有艾氏蛋白计法、低铁氰化钾沉淀法、磺基水杨酸液比浊法(下称SS法)、磺基水杨酸-硫酸钠液比浊法(下称SS-S法)和三氯醋酸比浊法(下称TCA法)等。脑脊液则 Urinary and cerebrospinal fluid protein quantitative determination of clinical testing is one of the most commonly used projects, the diagnosis of kidney and brain, nervous system disorders have an important value. At present, most foreign turbidimetric method and a variety of dye binding colorimetry, the merits of the latter method is still being explored. There are many methods for the quantitative determination of urinary protein in laboratories in our country. The main methods are Ehringer’s method, potassium ferricyanide precipitation, sulfosalicylic acid turbidimetry (SS), sulfohydrin Salicylic acid - sodium sulfate solution turbidimetry (hereinafter referred to as SS-S method) and trichloroacetic acid turbidimetric (hereinafter TCA) and so on. Cerebrospinal fluid is