渗透计

膜渗透计测定低分子量聚合物

Determination of low molecular weight polymers by using membrane osmometer

本文用小体积膜渗透计及动态渗透压法测定了聚苯乙烯标准样品（分子量1000&17000）和一系列主链含-5氟尿嘧啶聚酯的分子量（低于9000）。

The molecular weights of standard polystyrenes ( 1000 ≤ M ≤ 17000 ) and a series of polyesters containing 5-fluorouracil in the mate chain ( M < 9000 ) have been determined satisfactory by a small-volume membrane osmometer and dynamic osmometry .

接枝共聚粗产物经纯化及用IR，1HNMR和膜渗透压计等表征。

The purified copolymer was characterized by IR ,() ~ 1H NMR and membrane osmometry .

方法140例标本配对用UF-100尿沉渣分析仪测定电导率和冰点渗透压计测定渗透压。两法也同时用于尿崩症患者的禁水-加压素试验。

Methods The conductivities of 140 random urine samples and 23 urine samples from a patient with diabetes insipidus was examined by UF-100 urine sediment automated analyzer , and the osmotic pressure of these urine samples was examined by micro-cryoscopic osmometer .