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8-羟基喹啉,AR，99.0% 乙二胺四乙酸,AR 乙酸钾 双甘肽,99%
L-瓜氨酸简介：
L-Citrulline 是一种氨基酸，源自于脯氨酸、谷氨酰胺和谷氨酸盐的分解代谢过程中产生的鸟氨酸，或通过精氨酸-瓜氨酸途径获得的 l-精氨酸
1.L-瓜氨酸产品物理参数：
2.L-瓜氨酸技术资料：
3.L-瓜氨酸同类产品列表：
4.L-瓜氨酸生物活性：
天然产物 >> 其他
研究领域 >> 其他
5.L-瓜氨酸物理化学性质：
6.L-瓜氨酸毒性和生态:
L-瓜氨酸毒理学数据:
二、毒理学数据：
急性毒性：不可用。
L-瓜氨酸生态学数据:
三、生态学数据：
1、其它有害作用：该物质对环境可能有危害，对水体应给予特别注意。
7.L-瓜氨酸安全信息:
8.L-瓜氨酸制备:
首次从西瓜汁中分离出的一种氨基酸。由精氨酸的碱水解得到。
9.L-瓜氨酸海关:
10.L-瓜氨酸文献:
Development of High-purity Certified Reference Materials for 17 Proteinogenic Amino Acids by Traceable Titration Methods.
Megumi Kato, Taichi Yamazaki, Hisashi Kato, Sakae Eyama, Mari Goto, Mariko Yoshioka, Akiko Takatsu
文献索引：Anal. Sci. 31 , 805-14, (2015)
全文：HTML全文
摘要
To ensure the reliability of amino acid analyses, the National Metrology Institute of Japan of the National Institute of Advanced Industrial Science and Technology (NMIJ/AIST) has developed high-purity certified reference materials (CRMs) for 17 proteinogenic amino acids. These CRMs are intended for use as primary reference materials to enable the traceable quantification of amino acids. The purity of the present CRMs was determined based on two traceable methods: nonaqueous acidimetric titration and nitrogen determination by the Kjeldahl method. Since neither method could distinguish compounds with similar structures, such as amino acid-related impurities, impurities were thoroughly quantified by combining several HPLC methods, and subtracted from the obtained purity of each method. The property value of each amino acid was calculated as a weighted mean of the corrected purities by the two methods. The uncertainty of the property value was obtained by combining measurement uncertainties of the two methods, a difference between the two methods, the uncertainty from the contribution of impurities, and the uncertainty derived from inhomogeneity. The uncertainty derived from instability was considered to be negligible based on stability monitoring of some CRMs. The certified value of each amino acid, property value with uncertainty, was given for both with or without enantiomeric separation.
11.L-瓜氨酸英文别名：
(2S)-2-amino-5-(carbamoylamino)pentanoic acid、L-(+)-Citrulline、α-amino-δ-ureidovaleric acid、Sitrulline、N5-(Aminocarbonyl)ornithine、d-ureidonorvaline、(S)-2-Amino-5-ureidopentanoic acid、N-Carbamoylornithine、anti-citrulline
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