1) accurate mass measurement
准确质量测定
1.
A multidimensional qualitative analysis approach, consisting of accurate mass measurement, retention index, MS/MS and mass spectrum search, has been proposed to identify compounds, which could improve efficiency and accuracy of qualitative analysis.
采用谱库检索结合准确质量测定、保留指数、串联质谱技术的多维定性分析策略鉴定化合物,能够提高定性分析的效率和准确性。
2) accurate determination
准确测定
1.
Study on accurate determination of hydrogen peroxide content;
过氧化氢含量准确测定方法的研究
2.
Research on factors influencing the accurate determination of the volatile matter of coal;
影响煤中挥发分准确测定的因素研究
3) accurate mass
准确质量
1.
Using polyethylene glycol(PEG) and the protonated molecular ion(MH +) as internal reference compounds,the accurate mass of the fragment ions were determined,The fragment ions were elucidated,and their fragmentation patterns were discussed.
本文采用电喷雾 /飞行时间质谱法 ,对 5个红霉素类抗生素进行了源内CID研究 ,并以PEG40 0及各样品质子化分子离子 (MH+ )做为内标物 ,对碎片离子进行了准确质量测定 ,确认了这些碎片离子 ,并总结了此类化合物的裂解规律。
2.
Using polyethylene glycol(PEG) as internal reference, electrospray ionization(ESI)/time - of -flight mass spectrometry(TOF - MS) was developed to determine the accurate mass of the protonated molecular ions of five erythromycin analogue antibiotics.
研究了聚乙二醇(PEG)为内标物的电喷雾(ESI)/飞行时间质谱(TOF-MS)准确质量测定方法,并应用于5个红霉素类抗生素质子化分子离子(MH~+)的质量测定。
5) mass assignment
质量确定
6) combined standard uncertainty of measurement
合成标准测量不确定度
补充资料：准确
1.谓与实际或预期完全符合。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条