糖引发乙腈-水体系相分离萃取弱极性有机物的研究.pdf

文档介绍：河北大学
硕士学位论文
糖引发乙腈-水体系相分离萃取弱极性有机物的研究
姓名:刘蓓
申请学位级别:硕士
专业:分析化学
指导教师:张红医
2011-06
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I
Abstract
Abstract
Sample preparation plays an important position in analytical chemistry. Liquid-liquid
extraction is a classic sample pretreatment method. This paper introduces a novel extraction
technology 4 “sugaring-out” which is based on traditional liquid-liquid extraction and
studies its application.
Chapter 1: mon sample preparation methods based on liquid-liquid
extraction and their applications were reviewed and the principle and conditions of
“sugaring-out” were summarized.
Chapter 2: With addition of a monomeric sugar or a haride into an
acetonitrile-water solution, the acetonitrile would be separated from water to from a new
phase. The plexes with Ni2+3Co2+3Cu2+ and Hg2+ were extracted into an
acetonitrile phase from aqueous by adding glucose as a phase-separation agent and
determined use HPLC. This study establish a new method for detection four metal ions in
same time.
Chapter 3: A new method for the simultaneous determination of five anthraquinone
derivatives in Xiaoerresuqing oral sol