纤维水镁石在氨基酸水溶液中的电化学及溶解作用研究  

STUDY OF THE DISSOLUTION AND ELECTROCHEMISTRY OF FIBRE BRUCITE IN AMINO ACIDS

作　　者：李国武[1] 董发勤[1] 万朴[1] 彭同江[1] 宋功宝[1] 

机构地区：[1]西南工学院矿物材料及应用研究所,绵阳621002

出　　处：《矿物学报》1999年第3期286-292,共7页Acta Mineralogica Sinica

基　　金：国家自然科学基金!49502025

摘　　要：在模拟人体温度37℃条件下．进行水镁石纤维粉尘与氨基酸作用的实验研究．测定在72h内溶解过程中PH值和电导率的变化、结果表明，纤维矿物在氨基酸中发生了有机配合作用，并且中性氨基酸对矿物的溶解能力最强。红外光谱研究表明．纤维粉尘中的金属离子主要是与氨基酸中的羧基发生配合的，粉尘的这种配合作用．一方面是对纤维中的金属离子产生有效的活化和迁移、另一方面也使氨基酸的结构发生变化、有可能是导致正常的蛋白质受破坏的原因之一。The dissolution of fibre brucite dust in amino acids at 37℃ was investigated and the variation of PH and conductance rate was determined in72 hours. The results suggest that fibre brucite was complexing with amino acids,formlng organic complex. The capacity of mineral dissolution in neutral amino acids was stronger than in acid and base. The infrared spectra show that the metal ions in fibre brucite are complexed with carboxyls of amino acids. This complexition, on the one hand,makes the metal ions mobilize and transport,and on the other hand makes the amino acid structure change. This may be one of the reasons for protein damage.

关 键 词：纤维水镁石 氨基酸水溶液 电化学 溶解作用 尘肺 

分 类 号：O629.7[理学—有机化学] R135.2[理学—化学]