在chemdraw软件中,这一区分更为直观。exact mass被标示为单质量,为质谱分析提供精确的同位素质量数据,帮助研究人员确定化合物的精确组成。与此相反,molecular weight则代表了化学分子量,适用于广泛的化学分析,包括但不限于计算溶液浓度、分子比等。两者的应用范围各异。分子量在化学合成、反应机理研究、...
答案解析 查看更多优质解析 解答一 举报 Exact Mass是准确分子量,一般精确到小数点四位Exact Mass是准确分子量,如果有具体例子介绍一下就更好了:) HBrExact Mass:79.93Mol.Wt:80.91m/e:79.93(100%),81.92(97.3%) 解析看不懂?免费查看同类题视频解析查看解答 ...
exact mass还是molecular weight 是根据质谱的分辨率来定了,现在新型质谱大多是高分辨率质谱,有的能精确到小数点后四位,所以一般都是exact mass。molecular weight是对分子量的计算一般不准确xact mass一般是含量丰度最高的同位素为基准计算出来的数值,如碳12,氢1等。而不考虑碳13和氢2,3等。molecular...
Exact Mass是准确分子量,一般精确到小数点四位 Exact Mass是准确分子量,如果有具体例子介绍一下就更好了:) HBr Exact Mass: 79.93 Mol. Wt:80.91m/e:79.93(100%),81.92(97.3%)
如果你说的是chemdraw里的话,exact mass是monoisotopic mass,molecular weight是化学分子量,前者给质谱...
Truly "exact" mass Truly ‘exact’ mass: Elemental composition can be determined uniquely from molecular mass measurement at ∼0.1 mDa accuracy for molecules up to ∼500 ... S Kim,RP Rodgers,AG Marshall - 《International Journal of Mass Spectrometry》 被引量: 84发表: 2006年 Petroleomics:...
Human plasma-derived antithrombin was characterized in both the native and de-N-glycosylated forms (without separation of isoforms) by means of electrospray ionization ion trap mass spectrometry (ESI-ITMS). In order to determine the limits of the instrument set-up, the molecular mass precision and...
# pm6 bomd=(maxpoints=400,RTemp=300)如果不设置速度的话,默认的初始动能为0。是使用ReadVelocity...
decahydronaphthalene-2,6-dicarboxylic acidChemical Formula: C12H18O4 Exact Mass: 226.12 Molecular Weight: 226.27 m/z: 226.12 (100.0%), 227.12 (13.1%)生产厂家 全球有 3家供应商decahydronaphthalene-2,6-dicarboxylic acidChemical Formula: C12H18O4 Exact Mass: 226.12 Molecular Weight: 226.27 m/z: ...
1) exact relative molecular weight 精确相对分子质量 1. Aim:To determine the exact relative molecular weight and the first-order structure of leucine enkephalin. 目的:测定亮氨酸脑啡肽的精确相对分子质量及其一级结构。 2) accurate relative molecular mass 准确相对分子质量 3) relative molecular mass...