【摘 要】
:
This study focuses on the determination, as well as, the composition of some heavy metals contained in 12 eye shadow cosmetic samples. An elemental analysis of
【机 构】
:
DepartmentofChemistry,DepartmentofChemistry
论文部分内容阅读
This study focuses on the determination, as well as, the composition of some heavy metals contained in 12 eye shadow cosmetic samples. An elemental analysis of heavy metals (Ti, Cr, Fe, Ni, Cu, Co, Mn, Pb, and Zn) was performed by X-ray Fluorescence. The
其他文献
摘 要:在实施新课程标准时,笔者在教学实践中,遵循以人为本原则。数学教学须因内容、因学生而定,不可强求一律。笔者对因材施教的原则在教学中的实践作了点滴的解析探讨:教师若能在端正学生学习态度、及时把握好学生个性特点的基础上,采取各种各样的方法,结合学生的实际生活,便可以激发学生强烈的求知欲和学习兴趣。 关键词:新课程标准;因材施教;教学方法 教学中,无论教还是学,方法都是很重要的。在实施新课程标
本文研究了基于Web技术的电子商务开发,主要介绍了ASP开发技术。文章对电子商务体系结构进行了阐述,并提出了电子商务系统设计的解决方案。
如今BIM技术的发展与应用,已被公认为继CAD技术之后建筑业的二次科技革命,十八大以来,国家高度重视信息化产业发展,住房城乡建设部大力推动BIM技术在建设行业的应用;模块化建
Background: The skin is the outer shell of the mammalian body and it is continuously exposed to a large spectrum of external stimuli including sun irradiation a
一、引言电子商务是我国商业发展的必然方向。随着中国信息化的进程的日益深入,商务行为对于信息系统的依赖程度越来越深;信息系统规模与技术复杂度日益提高,安全缺陷不可避
Background: Wrinkling of face is a common feature of aging and each individual could have his own feature of disease. Objective: To categorize the wrinkles of e
随着科技的快速发展,当前简便的计算工具在人们身上几乎随处可见,加上现实生活中对计算技能要求较低,现今学生的计算能力也下降了.其主要表现为计算速度慢、错误率高、口算能
Objectives: The morbidity of dry and itchy skin was high during a person’s lifetime and it had a significant negative impact. This study aimed to investigate t
Methylthioadenosine phosphorylase, (MTAP) is a key enzyme in the adenine and methionine salvage pathways. MTAP is encoded on human chromosome 9p21 in close prox
江油市人民医院门诊医技楼与相邻建筑物外科大楼相距仅4.8m,且外科大楼正在进行加固,为确保外科大楼的安全,门诊医技楼基坑在边坡支护设计时,采用微型桩对两建筑物间的土体进行加