SIZE-EXCLUSION CHROMATOGRAPHY WITH ELECTROSPRAY MASS-SPECTROMETRIC DETECTION

被引：0

作者：

SIMONSICK, WJ ^{[1
]}

PROKAI, L ^{[1
]}

机构：

[1] UNIV FLORIDA,COLL PHARM,CTR DRUG DISCOVERY,GAINESVILLE,FL 32610

来源：

CHROMATOGRAPHIC CHARACTERIZATION OF POLYMERS: HYPHENATED AND MULTIDIMENSIONAL TECHNIQUES | 1995年 / 247卷

关键词：

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We interfaced a size-exclusion chromatograph (SEC) to a mass spectrometer operating in the electrospray mode of ionization. Stable electrospray conditions were obtained using a tetrahydrofuran mobile phase containing similar to 10(-5) M dissolved sodium salt, which affords pseudomolecular ions through cationization. Using the SEC with electrospray detection, we calibrated the SEC for an ethylene-oxide-based nonionic surfactant. The calibration standards were the surfactant oligomers themselves. The chemical composition distribution of acrylic macromonomers was profiled across the molecular weight distribution. A nonuniform chemical composition distribution was observed. Cross-linkers, additives and stabilizers, and coalescing solvents contained in a complex waterborne coating formulation were analyzed in a single experiment.

引用

页码：41 / 56

页数：16

共 29 条

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