| 分光光度法测定草甘膦生产废水中草甘膦和甘氨酸的含量 |
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| 引用本文： | 李国鹏,周彩荣,石晓华,杨金金.分光光度法测定草甘膦生产废水中草甘膦和甘氨酸的含量[J].郑州大学学报(自然科学版),2012(2):81-84. |
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| 作者姓名： | 李国鹏 周彩荣 石晓华 杨金金 |
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| 作者单位： | 郑州大学化工与能源学院,河南郑州450001 |
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| 基金项目： | 郑州市科技局科技攻关项目,编号0910sGYG23256-6. |
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| 摘 要： | 在甘氨酸存在下用紫外分光光度计法测定草甘膦含量,所测废水体系中草甘膦质量分数为1.10%,该法RSD为0.836%,线性相关系数为0.999,表观摩尔吸光系数为6.53×103L/（mol.cm）.用可见光分光光度计法测定甘氨酸含量,考察了组分、缓冲液用量、显色剂配比、甘氨酸浓度等因素对分析的影响,测得废水中甘氨酸质量分数为1.58%,标准偏差为2.13%,线性相关系数为0.998,表观摩尔吸光系数为1.32×103L/（mol.cm）,分析实验值与实际值相吻合.
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| 关 键 词： | 废水处理 草甘膦 甘氨酸 分光光度法 |
Determination of the Amount of Glyphosate and Glycine in the Wastewater of Glyphosate Produced by Spectrophotometry |
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| L,Guo-peng,ZHOU Cai-rong,SHI Xiao-hua,YANG Jin-jin.Determination of the Amount of Glyphosate and Glycine in the Wastewater of Glyphosate Produced by Spectrophotometry[J].Journal of Zhengzhou University (Natural Science),2012(2):81-84. |
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| Authors: | L Guo-peng ZHOU Cai-rong SHI Xiao-hua YANG Jin-jin |
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| Institution: | (School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China) |
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| Abstract: | The influence of glycine on the amount of glyphosate detected by spectrophotometry was dis- cussed, RSD was 0. 836% and the linear correlation coefficient was 0.999, the apparent molar absorption coefficient was6.53×103L/（mol.cm） and glyphosate＇ s mass fraction was 1.10%. The effects of the buffer solution, dosage of color reagent, and glycine concentration on analysing glycine were investigated to test the contents of glycine by visible spectrophotometer. The results showed that the measurement er- ror, the linear correlation coefficient of glycine, the apparent molar absorption coefficient, and glycine＇ s mass fraction were 2.13%, 0. 998, 1.32×103L/（mol.cm） and 1.58%, respectively. And the analy- sis value was in agreement with actual data for glyphosate wastewater. |
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| Keywords: | wastewater treatment glyphosate glycine spectrophotometry |
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