Xuejing WU
,
Jie JIN
,
Wei YAN
,
Hua XIAO
,
Liuyin FAN
,
Chengxi CAO
色谱
doi:10.3724/SP.J.1123.2016.04029
A model of derivatized moving reaction boundary (MRB) is formulated from original MRB formed with formic buffer (phase α) and sodium hydroxide (phase γ). The model shows the formation of a new phase (phase β) with high pH value originated from phase γ, derivatized MRB created with phases α and β, as well as stationary boundary formed between phases β and γ. To demonstrate the validity of this model, the theoretical and numerical procedures are advanced. At the same time, the experimental procedures are also developed relied on a capillary electrophoresis (CE) and a home-made apparatus. There are evident systemic errors and low agreements between the experimental results and theoretical calculation with the original model of MRB developed in our previous papers. However, there are much high agreements between the experiments and theoretical computation relied on the model of derivatized MRB developed herein. The model of derivatized MRB together with the relative theoretical and experimental procedures holds evident significance for the design of the new separation and compressive techniques of samples used widely in electrophoresis including CE.
关键词:
electromigration
,
electrophoresis
,
numerical computation
,
moving reaction boundary (MRB)
,
stacking
张鹏
,
付经伦
,
刘建军
工程热物理学报
本文采用数值方法研究了气膜和冲击复合冷却结构的耦合传热和综合冷效.复合冷却平板模型布置有两个交错气膜孔和若干排冲击孔,气膜孔和冲击孔均采用圆柱孔型.分别研究了吹风比和冷气量分配对综合冷效、流场结构和对流换热特性等的影响规律,结果表明:复合冷却综合冷效明显受到吹风比影响;适当调节冷气量的分配,能够明显提高综合冷效.
关键词:
气膜冷却
,
冲击冷却
,
复合冷却
,
耦合传热
,
数值计算
吴雪静
,
金杰
,
颜炜
,
肖华
,
樊柳荫
,
曹成喜
色谱
doi:10.3724/SP.J.1123.2016.04029
在甲酸（α相）和氢氧化钠（γ相）缓冲液形成的移动反应界面的基础上，提出了一种衍生移动反应界面模型。模型表明在α相和γ相之间会形成一个新的β相，β相和α相形成衍生移动反应界面，β相和γ相形成移动界面。为了验证该模型的有效性，该文给出了相关理论及数值推导过程。此外，基于毛细管电泳和自制装置进行了相关实验。结果表明，若使用以前的移动反应界面，实验结果与理论计算存在较大误差，而采用该文提出的衍生移动反应界面，实验数据与理论计算结果高度一致。该文提出的衍生移动反应界面理论及模型对于电泳，特别是毛细管电泳中样品的分离与富集具有重要的意义。
关键词:
电迁移
,
电泳
,
数值计算
,
移动反应界面
,
堆积
