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286792125

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[求助] 帮忙翻译这几句话吧。。看不懂啊。。急啊。。谢啦

In corresponding MS2 spectra, the fragment peaks with m/z 258 [cleavage of C2–C3 in hexosamines (GlcN, GalN)] and m/z 300 [cleavage of C2–C3 in N-acetylhexosamine (GlcNAc, GalNAc)]exhibit the topmost abundance and can be used as indicators for the presence of hexosamines and N-acetylhexosamine.
The most intense MS2 peak with m/z 326.9 (loss of two water molecules) is indicative of deoxyhexoses Fuc and Rha. Other types of monosaccharides can also be identified by their fragmentation analysis.

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xiaoqihu

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爱与雨下(金币+1): 2012-02-24 21:16:30
sltmac(金币+5, 翻译EPI+1): 欢迎常来本版~ 2012-02-26 11:07:07
对照MS2谱图,其中碎片峰m/z 258(己糖胺的C2-C3断裂(GlcN, GalN))和碎片峰m/z 300(N-乙酰基己糖胺的C2-C3断裂(GlcNAc, GalNAc))展现出最大丰度,表明有己糖胺和N-乙酰基己糖胺的存在。MS2的最强碎片峰m/z 326.9(失去两分子水)表明脱氧已糖Fuc 和 Rha的存在。另外一些单糖也可以找到各自对应的碎片片段。
不是不追求,而是不强求
2楼2012-02-16 16:02:09
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