Atomic fluorescence spectrometry is introduced to monitor arsenicⅢ and arsenicⅤ and total arsenic in the water sample.
提出了测定水样中As(Ⅲ)、As(Ⅴ)、总As的原子荧光法:用邻苯二甲酸氢钾-NaOH缓冲溶液控制pH5。
Study on variety of blood flow velocity of common carotid artery during systole;
颈总动脉收缩期峰值血流速度变异的探讨
Bilateral common carotid arteries were permanently ligated in the rats.
方法采用双侧颈总动脉结扎造模法在大鼠术前及术后四周分别进行P300的测定及水迷宫试验。
In all subjects, the intima-media thickness(IMT) of the common carotid artery was al.
方法 :选取 3组受试对象 ,2 0例微血管性心绞痛患者、2 0例正常对照和三支病变的冠心病 (coronary artery disease,CAD)患者 ,分别测量静息条件下、反应性充血后和舌下含服硝酸甘油后肱动脉内径变化 ,同时测量各受试对象的颈总动脉内膜厚度 (intim a- media thickness,IMT)。
An Analysis on the Time Adverbs"Yizhi"and"Zong"from Semantic Perspectives;
时间副词“一直”与“总”的语义分析