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求助 关于月桂酰甘氨酸自身的物化性质。月桂酰甘氨酸做气相的沸点是多少呢？为什么我做气相没响应呢？:L  :(

别急，别急。把问题说清楚点。好吧？:) :)

:o 就是我和成处理得到月桂酰甘氨酸，但是我不知道我的反应结果怎么样，就去做了气相，可是300度的条件下，根本检测不出来我的物质。图谱上根本没有峰。我用的是程序升温法。只有溶剂峰。我想了解月桂酰甘氨酸的基本性质。查了一下，都是成盐之后的性质了。
还有这个东西在紫外居然没有吸收。:L 。HPLC也只能放弃了。不明白为什么？

才找到一篇论文，题为：“N-月桂酰基甘氨酸润滑添加剂的合成及性能研究”

摘要：利用月桂酰氯和甘氨酸在碱性溶液中反应制备出了N-月桂酰基甘氨酸。[color=darkorange]用红外光谱对其主要官能团进行了表征[/color];考察了该物质作为润滑油添加剂对HVI350矿物基础油的生物降解性能的影响,并用四球摩擦磨损试验机考察了N-月桂酰基甘氨酸在HVI350矿物基础油中的摩擦磨损性能。结果表明:N-月桂酰基甘氨酸作为矿物油添加剂表现出极好的提高矿物油生物降解性的作用和良好的抗磨减摩性能,并且具有优良的抗腐蚀性和防锈性,是一种环境友好型的多功能润滑添加剂。

不知有没有帮助？有用我再想办法下下来。

哦，想起来了，你这样直接做气相可能就是出不来的。

应该吧，我今天查了一下，发现月桂酸的沸点大约就300度，所以月桂酰甘氨酸的就更高了。:L 可是详细的就没找到了。把那片文章发一下吧！:victory: 谢了。

好的，我去下了，请等会。

你能把它的英文名称等告诉我吗？我到别的地方了解一下。
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[[i] 本帖最后由 jiangxs 于 2008-3-19 22:35 编辑 [/i]]

回复 8# 的帖子

月桂酰甘氨酸的英文名字是：N-Lauroyl glycine
谢谢了。:handshake
:victory:

能不能帮我查一下这篇文章呢？我这里只能看到摘要。Journal of Chromatography B
Volume 809, Issue 1, 25 September 2004, Pages 15-21  
题目：Use of reversed phase HP liquid chromatography to assay conversion of N-acylglycines to primary fatty acid amides by peptidylglycine-α-amidating monooxygenase

Author Keywords: N-Acylglycines; Fatty acid amides; Peptidylglycine-α-amidating monooxygenase
谢谢了

哈,不好意思,我一时也没找到下载帐号,跟你一样,只能看个提要.你可以到文献求助区去发贴求助.他们有招,且都会很热心帮助你的.祝你好运.:handshake

地址:[url]http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6X0P-4CPD3YC-2&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2eb33054b43dae0740781c559846ba21[/url]

Use of reversed phase HP liquid chromatography to assay conversion of N-acylglycines to primary fatty acid amides by peptidylglycine-α-amidating monooxygenase

Tara Carpentera, Derek D. Pooreb, 1, Andrew J. Geea, 2, Pallavi Deshpandea, David J. Merklerb and Mitchell E. Johnson, , a
a Department of Chemistry and Biochemistry, Duquesne University, 308 Mellon Hall of Science, Pittsburgh, PA 15282-1530, USA
b Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
Received 23 October 2003;  Revised 4 May 2004;  accepted 27 May 2004.  Available online 24 June 2004.



Abstract
Primary fatty acid amides (R-CO-NH2) and N-acylglycines (R-CO-NH-CH2-COOH) are classes of compounds that have only recently been isolated and characterized from biological sources. Key questions remain regarding how these lipid amides are produced and degraded in biological systems. Relative to the fatty acids, little has been done to develop methods to separate and quantify the fatty acid amides and N-acylglycines. We describe reversed phase HPLC methods for the separation of C2–C12 primary fatty acid amides and N-acylglycines and also C12–C22 fatty acid amides. Separation within each class occurs primarily on the basis of simple interactions between the acyl chain and the chromatographic stationary phase, but the polar headgroups on these and related fatty acids and N-acylethanolamides modulate the absolute retention in reversed phase mode. We use these methods to measure the enzyme-mediated, two-step conversion of N-octanoylglycine to octanoamide.

Author Keywords: N-Acylglycines; Fatty acid amides; Peptidylglycine-α-amidating

:victory: .还是感谢。

不客气，有成果的时候记住回来分享哟。:victory:

:lol .但愿有那么一天。一定分享。