nmr analysis 中文意思是什麼

nmr analysis 解釋
核磁共振法分析
  • nmr : NMR =nuclear magnetic resonance 核磁共振。
  • analysis : n. (pl. -ses )1. 分解,分析;【數學】解析。2. 梗概,要略。3. 〈美國〉用精神分析法治療(= psychoanalysis)。
  1. The amniotic fluid and allantoic fluid of chicken embryo have been analyzed and the resonances of most substances in them were assigned by 1 - dimention and 2 - dimention nuclear magnetic resonance ( nmr ) methods. this work could be the basis of quantitative analysis of metabolites and studying the metabolites changing between the amniotic and allantoic fluid during the hatching process. also, it provided a new way to study the process of embryo developing

    用一維及二維液體高分辨核磁共振( nuclearmagneticresonance , nmr )方法綜合分析了雞胚羊水和尿囊液的成分,對其中的大多數譜峰進行了歸屬,發現了一些未經報道的小分子代謝物,為研究胚胎發育過程中各個胚囊中體液的交換和小分子的代謝以及進一步對發育過程中代謝物含量變化的定量研究打下了基礎,並為研究胚胎發育的過程提供了新的思路。
  2. Abstract : several - aromaticamino ketones, which were designed according to some hypothetical models of the cyclooxygenase and 5 - lipoxygenase active sites, were synthesized by an amino exchange reaction. the structures of the eight new compounds were confirmed by ir, 1h - nmr and elemental analysis. the results of the pharmacological tests showed some of the investigated compounds had significant anti - inflammatory activity on croton oil - induced ear edema of mice

    文摘:根據環氧化酶、 5 -脂氧化酶活性中心結構模型設計了一組-芳胺酮類化合物,並用胺交換反應合成了這些化合物.經紅外光譜、核磁共振氫譜及元素分析證實了8個未見文獻報道的化合物的結構.藥理實驗結果顯示.部分受試化合物在巴豆油誘發小鼠足趾腫脹模型中表現出一定的抗炎活性
  3. 3 flexible liposome constituted with pc + dona were exhibited under transmission electron microscopy. 4 pfg - nmr analysis indicated that the use of 25 : 1 of tween - 20 : ( - ) c, most of it ( > 90 % ) has been incorporated in the tween - 20 micelle structures

    4 、以pnnmr分析了膠束體帥)結構對卜幾類物質的荷載量,發現當t een一20使用量為兒茶素卜)的50倍時,絕大部分卜) c ( 90以上)己嵌禾在tween 20形成的膠束體( 。
  4. An improved method for extraction of soil humic acid was used to isolated dissociative humic acid ( ha - i ) and enwrapped humic acid ( ha - ii ) from paddy soil and pohakee peat. quantified and characterized ha - i and ha - ii with 13c nmr, py - gc - ms, optical and elemental analysis. the results indicate that two humic acids are highly different in structure, and ha - ii is more condensed

    採用一種改進的腐殖酸萃取方法從珠江三角洲稻田土壤和pahokee泥炭中分離出了游離腐殖酸( ha - )和包裹腐殖酸( ha - ) ,並採用元素分析、 ~ ( 13 ) cnmr 、 py - gc - ms和有機巖石學方法對ha -和ha -進行了定量和定性研究,結果表明兩種腐殖酸在性質和結構上是有區別的。
  5. The molecular structure of ethyl cellulose was characterized and confirmed by elementary analysis, ft - ir and 1h nmr, and the compound obtained was final objective product

    通過元素分析、紅外光譜和核磁共振氫譜對產物的分子結構進行表徵,確定所合成的化合物即為目標產物。
  6. So streptomyces sp. fr - 008 is a new strain synthesizing candicidin. nmr studies analysis of the 1h - 1h cosy spectrum allowed us to distinguish some important chemical shifts of the protons in fr - 008b which could be identified as eandicidin d. especially for amino - mycosamine residue, methyl protons and all the protons on the ring could be defined by correlating relation

    利用與糖基合成有關的基因str - de作探針對這兩個菌株的總dna進行了southern雜交,從兩個菌株的總dna中均檢測到一段相同大小的陽性片斷,約6 . 4kd ( bamhi + bglii酶切) 。
  7. Meso - tetra ( 4 - acyloxyphenyl ) pophyrin was prepared by usual procedure from acyl chloride and meso - tetra ( 4 - hydroxyphenyl ) porphyrin in benzene and obtained in 86. 4 % yield. treatment of the free base with zinc chloride in dimethyl formamide ( dmf ) - dichloromethane ( ch2cl2 ) yielded corresponding zinc porphyrin complex. the spectral data ( uv - visjr / h - nmr ) and elemental analysis are in agreement with the assigned structures

    在合成工作基礎上,採用紫外可見光譜( uv - vis ) 、紅外光聲光譜( ftir - pas ) 、核磁共振氫譜( ~ 1hnmr ) 、元素分析、摩爾電導等手段研究了卟啉及金屬卟啉材料的組成及結構。
  8. The possible conformations of the guest molecules inside the cavity of - cyclodextrin are depicted through nmr analysis

    通過核磁共振分析,給出了客體分子在-環糊精空腔的可能構象。
  9. Based on this point, our aim to obtain the high performance materials should be carried out as well as the er behavior be actualized through the chemistry design. in this paper, 4 supramolecular complexes of - cyclodextrin inhydrosoluble polymer / l - ( 2 - pyridlazo ) - 2 - naphthol, 6 hydrosoluble - cyclodextrin polymer / 3 - hydroxy - 2 - naphthoic acid, 2 - cyclodextrin - starch resins and 6 supramolecular complexes of - cyclodextrin - starch copolymer / substituted salisylic acid and 3 - hydroxy - 2 - naphthoic acid er particles were prepared, respectively. the structure of these particles was characterized by ir, nmr, uv - vis, the fluorescence analysis, element analysis, and etc, respectively

    在本項研究中,分別制備了4種不溶性-環糊精聚合物及其與1 - ( 2 -吡啶偶氮) - 2 -萘酚構築的超分子配合物、 6種水溶性-環糊精聚合物及其與3 -羥基- 2 -萘甲酸的超分子配合物、 2種-環糊精澱粉樹脂及6種-環糊精澱粉共聚物與取代水楊酸、 3 -羥基- 2 -萘甲酸形成的超分子配合物顆粒,通過紅外光譜、熒光分析、元素分析、電子吸收光譜及核磁共振譜等對它們的結構進行了表徵。
  10. Wt has been applied to denoising, data compression, and resolution of overlapping signals in analytical chemistry that includes flow injection analysis ( fia ), voltammetric analysis, high performance liquid chromatography ( hplc ), infrared ( ir ) spectroscopy, mass spectroscopy ( ms ), nuclear magnetic resonance ( nmr ) spectroscopy, ultraviolet - visible ( uv - vis ) spectroscopy, photoacoustic spectroscopy ( pas ), extended x - ray absorption fine structure ( exafs ) spectrum, etc

    在分析化學領域中,小波變換在流動注射分析、伏安分析、高效液相色譜、紅外光譜、質譜、核磁共振譜、可見紫外光譜、光聲光譜、擴展x -射線吸收精細結構( exafs )譜等分析化學信號的平滑濾噪、數據壓縮、重疊信號解析等方面都有成功的應用。
  11. Nuclear magnetic resonance ( nmr ) and magnetic resonance imaging ( mri ) technologies are widely used for physical, chemical, material and biomedical analysis and medical diagnosis

    摘要核磁共振波譜和核磁共振成像技術( mri )已經成為一種廣泛應用於物理、化學、材料、生物醫學等領域的重要研究工具和醫療診斷手段,但是儀器復雜、價格昂貴。
  12. Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature. polymers with high yield and high molecular weight were obtained. their structures were characterized by uv, ir, nmr and gpc, respectively. the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region. the relation between fluorescence and polymer structure was studied. the results showed that the molecular chain structure has great influence on fluorescence of the polymers. the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength. the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength, and different emission sites in molecular chains and low emitting yield are shown. the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers

    文摘:使用有機金屬銠、金屬鎢/四苯基錫催化劑體系聚合苯乙炔,分別獲得了高產率和高分子量的聚苯乙炔.使用uv , ir , nmr , gpc等分別對聚合物結構進行了表徵.採用不同波長的激發光對聚合物熒光性能進行研究,詳細分析了聚合物結構與熒光性能之間的關系.研究結果發現,不同聚合物結構對聚合物熒光性能產生很大影響,規整性高的聚合物,將有較高的發光量子效率;聚合物規整性差,將可能導致多個熒光發光結構點,其熒光強度降低.聚合物熒光光譜研究將對某些共軛聚合物結構的規整性分析提供一些有用的信息
  13. In order to research systematically the kinetics of the redox reaction between tbh and np ( vi ), the main contents of the work in this paper are as follows. ( 1 ) tbh is synthesized by direct alkylization in chsoh media. the structure and composition of the product are characterized by elemental analysis, uv - vis spectrum, ir spectrum, ms spectrum and nmr spectrum respectively

    為深入系統的研究特丁基肼還原np ( )的動力學,為后處理工藝流程提供實驗和理論依據,本文研究了以下內容: ( 1 )以甲醇為溶劑,用直接烷基化的方法合成了特丁基肼,並通過元素分析、紫外光譜、紅外光譜、質譜、核磁共振譜等手段對產品進行表徵。
  14. Their structures were all confirmed by ir, 1h - nmr, ms and elemental analysis, and their anti - inflammatory activities were also evaluated with the model xylene - induced ear edema in mice, the results show that all of the 4 compounds have anti - inflammatory activities, and the anti - inflammatory activities of compounds 3 and 4 are two or three times than that of ibuprofen, respectively

    以布洛芬為陽性對照,採用小鼠耳腫脹法測試其抗炎作用,結果顯示所有目標化合物均具有抗炎活性,其中化合物3和4的抗炎活性分別是布洛芬的2倍和3倍。
  15. The techniques make full use of the fast measurement and non - damage characteristic of nmr analysis and realize the fast measurements of petrophysical parameters on site

    本技術充分發揮了核磁共振分析技術快速、無損測量的特點,實現了油層物理參數的現場快速測量。
  16. The results of mas nmr analysis indicate that the crystalline structure of cordierite was considerably changed by the incorporation of the zn2 ions or ti " " ions, leading to the partial transition from a - cordierite with a hexagonal crystalline structure to p - cordierite with a orthorhombic crystalline structure

    2al2o3 ? 4 . 6sio2堇青石固溶體樣品的結構。 masnmr研究結果表明, zn2 + 、 ti4 -的固溶對樣品中的堇青石結構具有重要的影響,使得樣品中的堇青石由六方結構-堇青石向四方結構-堇青石轉變。
  17. By choosing different solvents, concentrations and temperatures, and using nmr spectrum technique, to determine the hydroxyl of z / e isomers of perillartine, the concentration of which was 3. 125 mg / ml, present different chemical shifts in c6d6, solvent and carbon tetrachloride and in the 1h nmr, and accordingly, conduct qualitative and quantitative analysis of z / e isomers of perillartine

    摘要本文利用核磁共振波譜儀,通過對紫蘇葶溶液不同溶劑、不同濃度和不同測試溫度的選擇,使順式結構和反式結構的紫蘇葶羥基峰在核磁共振維氫譜中呈現出不同化學位移值,從而對其順式結構和反式結構進行了定性、定量分析。
  18. Nuclear magnetic resonance ( nmr ) data are used to study back - exchange at specific sites in typical solvents used for separation and analysis, and the derived rates are found to be predictable using methods established for aqueous solvents

    根據核磁共振( nmr )數據研究了在分離和分析所用典型溶液的特定位置上的返交換效應,並發現可以使用為水相溶劑建立的方法對衍生化率進行預測。
  19. Two application softwares, the nmr calibration software and the fast nmr core analysis software, are programmed. the two softwares offer the specific calibration and fast measurement function of cuttings petrophysical parameters. the research results show that nmr technique has the advantage of fast, non - contact and independence of samples size and can be applied to the cuttings analysis

    研究結果表明,核磁共振分析技術具有快速、無接觸、與樣品外形體積無關的特性,不僅可以應用於規則形狀的巖心樣品,同樣可以較好地應用於不規則的小顆粒樣品,如巖屑的分析。
  20. To sandstone, nmr cuttings analysis can get the same results as core analysis. and the nmr cuttings analysis can also realize the fast measurement of oil saturation, which is difficult for the nmr core analysis in the house at present

    採用核磁共振巖屑分析技術不僅可以快速從巖屑中獲得孔隙度、滲透率及可動流體百分數等重要油層物理參數,而且還可以實現巖屑含油飽和度的快速測量,這是目前室內核磁共振巖心分析較難做到的。
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