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[1]关洪亮,熊倩,余训民,等.茚三酮法定性定量检测丝氨酸[J].武汉工程大学学报,2012,(11):40-43.[doi:103969/jissn16742869201211009]
 GUAN Hong liang,XIONG Qian,YU Xun min,et al.Qualitative and quantitative determination of serine by ninhydrine[J].Journal of Wuhan Institute of Technology,2012,(11):40-43.[doi:103969/jissn16742869201211009]
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茚三酮法定性定量检测丝氨酸
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年11期
页码:
40-43
栏目:
资源与土木工程
出版日期:
2012-12-10

文章信息/Info

Title:
Qualitative and quantitative determination of serine by ninhydrine
文章编号:
16742869(2012)11004004
作者:
关洪亮熊倩余训民李庆新
武汉工程大学环境与城市建设学院,湖北 武汉 430074
Author(s):
GUAN HongliangXIONG QianYU XunminLI Qingxin
College of Environment and Civil Engineering,Wuhan Institute of Technology,Wuhan 430074,China 16:39:16
关键词:
丝氨酸茚三酮显色法含量测定
Keywords:
serineninhydrinechromatographycontent detection
分类号:
TQ028.5
DOI:
103969/jissn16742869201211009
文献标志码:
A
摘要:
为了快速简便地检测氨基酸水解液中丝氨酸的含量,提出了一种基于氨基酸纸上层析的改进茚三酮显色法,并将其应用于难以分离的氨基酸的检测.首先,将茚三酮加入到展层剂中,再对氨基酸混合液进行层析.在一定条件下将层析后的茚三酮与氨基酸进行显色反应,根据不同颜色即可鉴别丝氨酸.然后,对不同剂量的丝氨酸标准液使用上述方法绘制丝氨酸标准液的吸光度-含量的标准曲线,用以计算氨基酸水解液丝氨酸的含量.结果表明:茚三酮法定性定量检测丝氨酸的最佳实验条件为溶液pH在4.5左右,显色剂用量为每10 mL展层剂中加入2.5 mL 0.1%茚三酮,并在105 ℃下加热5 min.
Abstract:
An improved ninhydrine colorimetric method was established based on amino acid paper chromatography to detect serine in amino acid hydrolysate rapidly and simply. The method was applied to detect amino acids which were hard to separate. Firstly, ninhydrine was added to the developing agents, and the mixture of amino acids was undertaken chromatography on the filter paper. Chromatography ninhydrine and amino acid produced chromogenic reaction through which serine could be identified. Then, the different doses of serine standard solution were handled in the same way, a absorptionserine concentration standard curve was plotted by using serine standard solution to calculate the content of serine in the hydrolysate. The results show that the method possesses good repeatability, high precision and convenient operation under the best condition that pH of the solution is 5, the chromogenic agent is each 10 mL developing agent by adding 2.5 mL 0.1% ninhydrine and the heating time is 5 min under the temperature of 105 ℃.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:20120705基金项目:武汉工程大学科学研究基金项目(13102051)作者简介:关洪亮(1974),男,湖北武汉人,讲师,博士.研究方向:水污染控制.
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