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当前位置: 首页 > 文章 > 云杉灰分中矿质元素的测定及对亚甲基蓝的吸附研究 吉林林业科技 2014 (1) 26-29+66
Position: Home > Articles > Mineral element determination and adsorption study on methylene blue of Picea asperata Mast. ash Journal of Jilin Forestry Science and Technology 2014 (1) 26-29+66

云杉灰分中矿质元素的测定及对亚甲基蓝的吸附研究

作  者：
姜小萍;赵林
单  位：
青海民族大学化学与生命科学学院
关键词：
云杉;矿质元素;紫外可见分光光度法;普析通用可见分光光度法;亚甲基蓝
摘  要：
以云杉不同光照强度的树冠枝条针叶和老针叶为试样,研究灰分中矿质元素的种类与分布特点和对亚甲基蓝的吸附,结果表明,阳面针叶中的矿质元素含量高于阴面,且K和Ca元素的含量高于Mg和Fe元素;老叶的矿质元素含量高于新叶,同样K和Ca元素的含量高于Mg和Fe元素。灰分在紫外可见光波长为650nm处时,亚甲基蓝的吸光度值最大;吸附平衡时间为70 min;0.4 g灰分为最佳用量;90℃时达到吸附平衡;在酸性范围内,随pH值增大,吸附力下降,碱性条件下则相反。
译  名：
Mineral element determination and adsorption study on methylene blue of Picea asperata Mast. ash
作  者：
JIANG Xiao-ping;ZHAO Lin;College of chemistry and bioscience,Qinghai National University;
关键词：
Picea asperata Mast.;;mineral element;;ultra violet spectrophotometry;;pgeneral visible spectrophotometer;;methylene blue
摘  要：
Picea asperata Mast. needles from crown branches and older needle- leaves with different light intensity were taken as objects to research the types and distribution characteristics of mineral element,and the adsorption to methylene blue. The results showed that mineral element content of sunny facing needles were higher than shaded halves,content of K and Ca were higher than Mg and Fe; Mineral element content of old leaves was higher than young leaves. Absorbancy of methylene blue reached maximum value,when wave length of ultraviolet visible light was 650 nm; adsorption equilibtium time was 70 min; 0. 4 g was optimum volume of the ash; adsorption equilibrium reached at 90℃. In the range of acidity, the adsorption capacity decreased with the increase of pH,the results was opposite in the range of alkalinity.

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