gc-content 中文意思是什麼
-
Dna sequence analysis indicated that tn5gusa5 is prone to insert into low gc content regions ; guanine is a preferential base at the first place and cytosine at the last site of target sequence
在質粒上tn5gusa5也傾向于插入低gc含量區；堿基g和c分別在靶序列的首位和末尾出現的幾率高。 -
Results by gc - tofms, the ferulic acid was successfully isolated from the extracts of rpc in a relative content of 5 %
結果阿魏酸在蘆根提取物中的相對質量分數為5 % 。 -
Conclusion gc - tofms technique is a rapid, accurate, sensitive, and reliable method for determination of the relative content of ferulic acid in rpc and identificatiion of its structure
結論氣相色譜飛行時間質譜法測定和鑒定蘆根中阿魏酸含量和結構是一種快速、準確、靈敏、可靠的檢測方法。 -
The gc - ms analysis indicated that the principal constituent of the volatile oil was alkyl - alcohol and alkene compound ( account for 62 ~ 78 percent of the total ), the content of saturation hydrocarbon and organic acid was in the secondary place
揮發油的gc - ms分析表明：川白芷揮發油的主要成分是烷醇類和碳烯類化合物，含量較高，約占整個揮發油的62 78 ，其次為飽和烴類與有機酸類。 -
Liu yc, lu yl, yang gc, zhu zg. influence of cerium content on damping capacities of as - spray deposited high silicon alloy za27, transactions of nfsoc 7 ( 1997 ) 111 - 115
楊留栓，劉永長，龐禮軍，楊根倉，周堯和.噴霧沉積高硅za27合金的摩擦磨損性能，材料研究學報， 10 （ 1996 ） 363 - 367 -
The late permian coal from southern china are unique in high content of barkinite and element hydrogen, as well as significant hydrocarbon - generation potential. in this paper, rock - eval, py - gc and mpv - 3 were used to study the hydrocarbon - generation potential, the hydrocarbon composition, hydrocarbon - generation mechanism and thermoevlutional characteristics of barkinite in open system simulation. the results indicate that barkinite has higher hydrocarbon - generation potential, the values of hydrocarbon - generation potential s
為1 . 55 %左右烴類組成以輕質烴凝析油或輕質油占絕對優勢，濕氣次之，並且烯烴含量較高此現象與開放體系熱模擬有關氣態烴與液態烴演化規律相似，據此可以認為，氣態烴很大一部分是由液態烴進一步裂解來的。 -
The result shows that the content of total flavones is 0. 0885 %. in conclusion, through the comprehensive studies on the botanical, morphological, histological and phytochemical aspects, this project has laid a solid basis on the quality evaluation and further development of pine leaves. it is this paper that first reported the gc - ms analysis of the essential oils obtained from p. armandi franch and flavonoids compounds in pinus massoniana lamb.
綜上所述，本文通過對藥用松葉品種、藥材性狀、顯微組織及化學成分的研究，為四川產主要藥用松葉品種鑒定、品質評價提供了依據，特別是對揮發油、黃酮類成分的研究所取得的初步結果以及一種新物質的發現，將為馬尾鬆鬆葉的二次開發奠定基礎。 -
G ) the analysis of the tar content with the aid of gc / ms ; before the analysis by the gc / ms, a lot of pre - treatment was done to divide the tar into five part : aliphatics, aromatics, ester, polar, asphaltenes
在層析分析的基礎上，將焦油分為五部分：脂肪烴、芳香烴、酯類、極性物、瀝青質。應用gc ms對焦油的成份進行了分析和比較。 -
Sequence data showed that the dna fragment containing a complete orf was 975bp, 68. 3 % gc content. its amino acid product was a putative rna polymerase sigma factor, suggesting the orf was the true whig hologue
經測序和序列分析，證實該片段長975bp ， gc含量68 . 3 ，含有一個完整的orf ，編碼278氨基酸殘基，推測其蛋白產物是rna聚合酶因子。 -
Methods the chemical constituents were extracted by solvent and the relative content and structure of ferulic acid in rpc were determined and identified using gc - tofms technique
方法溶劑提取，氣相色譜飛行時間質譜測定和分析其含量和結構。
分享友人