SIMPLE AND INEXPENSIVE APPLICATION OF STERIC EXCLUSION CHROMATOGRAPHY FOR THE ISOLATION OF LOW-MOLECULAR-WEIGHT ADDITIVES FROM POLYMER SYSTEMS

被引：14

作者：

SHEPHERD, MJ

GILBERT, J

机构：

来源：

JOURNAL OF CHROMATOGRAPHY | 1979年 / 178卷 / 02期

关键词：

D O I：

10.1016/S0021-9673(00)92502-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of steric exclusion chromatography is described for the isolation of additives from polymers. A simple and inexpensive, gravity-flow system has been evaluated employing Sephadex LH-60 with tetrahydrofuran as eluent, and recoveries have been shown to be quantitative for a range of additives employed in poly(vinyl chloride) formulations, although problems were encountered in the recovery of antioxidants and organotin stabilisers. Maximum column loadings of polymer have been established in order to maximise recovery of additives present at low levels and for the trace analysis of trasformation products. © 1979.

引用

页码：435 / 441

页数：7

共 27 条

[1] A METHOD FOR DETERMINATION OF TIN IN RANGE 0.2 TO 1.6 MU G, AND ITS APPLICATION TO DETERMINATION OF ORGANOTIN STABILISER IN CERTAIN FOODSTUFFS [J].