The ageing of rigid polyvinyl chloride (R-PVC) aggravated by nitric and sulfuric acids was studied by IR, UV Spectroscopy, thermo-analysis and molecular weight determination.

用红外与紫外光谱法、热分析和分子量测定研究了硬聚氯乙烯在硝酸和硫酸中的老化。

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A method for rapid determination of molecular weight of lysozyme from chiken egg white by matrix-assisted laser desorption ionization mass spectrometry was represented in this paper.

本文介绍了一种用基本辅助激光解吸电离质谱法快速测定蛋清中溶菌酶相对分子质量的方法。

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Acetic acid lignin (al) from acetic acid pulping was isolated and purified. Chemical structure and molecular weight of al were studied with infrared spectroscopy and GPC determination.

对来自乙酸法制浆废液的木质素进行了提取和纯制，并采用红外光谱和GPC研究了乙酸木质素的结构和分子质量。

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