CAJ | 학술논문

用X射线光电子能谱法(XPS)研究了麦秆节间不同部位皮层的硅化物组成及含最,探索皮层硅化物的碱稳定性.结果表明,在实验条件下,节间所有部位皮层中的硅化物均是巾有机硅化物和无机硅化物组成;无机硅化物的含量约为有机硅化物的3倍,且种类更复杂;节问上部皮层的硅化物含量最高,下部皮层的硅化物含量最低;自外至里,上部皮层中硅化物的含量、分布具有与其他禾本科原料皮层相似的规律性,下部皮层的规律性较差.不同硅化物的碱稳定性有差别;部分无机硅化物微块由于其连接机构的碱溶解而脱落,完好地存在于黑液之中.在皮层生物结构中,硅化物的堆砌、连接方式及其碱溶机理有待进一步研究.
용X사선광전자능보법(XPS)연구료맥간절간불동부위피층적규화물조성급함최,탐색피층규화물적감은정성.결과표명,재실험조건하,절간소유부위피층중적규화물균시건유궤규화물화무궤규화물조성;무궤규화물적함량약위유궤규화물적3배,차충류경복잡;절문상부피층적규화물함량최고,하부피층적규화물함량최저;자외지리,상부피층중규화물적함량、분포구유여기타화본과원료피층상사적규률성,하부피층적규률성교차.불동규화물적감은정성유차별;부분무궤규화물미괴유우기련접궤구적감용해이탈락,완호지존재우흑액지중.재피층생물결구중,규화물적퇴체、련접방식급기감용궤리유대진일보연구.
The content and components of suicides in the cuticle of the up-part, the mid-part and the low-part on the internode of wheat straw stem were studied by means of XPS, and the alkali-stability of the silicides in the foresaid cuticle was also investigated. The results showed that, the silicides in above cuticles are all composed of organic and inorganic silicides. The content of inorganic silicides is about three times as high as organic silicides. And the sorts of inorganic silicides are more complex. Among the above three parts, the up-part has highest sili-cide content, and the low-part the lowest. From the outside to the inner of the cuticle, the profile of silicide content is in analogy to that of other gramieal cuticle, and the profile of silicides in the low-part cuticle has poor order. Under the experimental conditions, the alkali-stabili-ty of a sort of silicides is different from the other. A part of inorganic micro blocks of silicides with higher alkali-stability wholly remains inthe black liquor after falling off from the cuticle. The mode of building and connecting as well as the alkali-degrading of the silici microblocks will be further researched.