tof analysis 中文意思是什麼
tof analysis
解釋
飛行時間分析-
The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins
將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。 -
Identification of vimentin in subline coc1 ddp by maldi - tof mass peptide map analysis
亞細胞中波形纖維蛋白的肽質譜指紋分析 -
Analysis of the primary structure of rhepo by maldi - tof - ms
一級結構的質譜分析 -
57 protein spots out of about 1000 detectable spots on the 2 - d gels were indentified by the following two methods : l ) n ~ terminal edman degradation microsequencing after the protein spots were electro - transferred to pvdf membrane. 2 ) maldi - tof - ms peptide fingerprint analysis of the protein spots and protein database searching. the 2d protein maps of the rice spikelet during the sterile and fertile stages were compared
二是通過原位酶解，抽提蛋白質片段進行maldi - tof質譜分析，利用肽質量指紋圖數據在數據庫中進行檢索，在雙向電泳凝膠上取了57個點進行分析，有34個蛋白質點在數據庫得到歸屬鑒定。 -
A lot of methods were used in measurement and data analysis to improve the quality of the data. the measured tof spectra were simulated by monte - carlo code streuer. the cross sections were determined by comparing the measured tof spectra with the simulated tof spectra and the data were normalized to n - p scattering measurement
本論文利用ciae發展起來的常規和非常規快中子飛行時間譜儀，利用d （ d ， n ） ~ 3he中子源，測量了10 . 26mev中子引起的~ （ 51 ） v的次級中子雙微分截面，成功解決了源破裂中子對次級譜的影響。 -
Analysis of by - products from improved ullmann reaction using tof - ms and gc - tof - ms
分析改良烏爾門反應的副產物
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