qualitative chemical analysis 中文意思是什麼

qualitative chemical analysis 解釋
定性化學分析
  • qualitative : adj. 1. 質的，質量上的。2. 性質上的。3. 【化學】定性的，定質的 （opp. quantitative）。adv. -ly 1. 性質上；質量上。2. 用定性方法。
  • chemical : adj 化學的，化學作用的；應用化學的，用化學方法獲得的。n 〈常 pl 〉化學製品；藥品。 fine chemicals...
  • 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. Through indoor routine tests, the physical and mechanical natures of intact and remolding soil of muck and mucky soil, in fuzhou, are analyzed in this thesis. the results reveal that water content, void ratio, shear strength of remolding soil samples are lower than those of intact samples. then qualitative analysis on the mineral composition, chemical composition and microstructure characteristic and types of the soft clay is given

    本文通過室內常規試驗對福州地區淤泥及淤泥質粘土的原狀土樣和擾動土樣的物理力學性質進行了分析，觀察土樣受擾動后一些物理力學指標的變化情況，發現擾動軟粘土樣的含水量、孔隙比、抗剪強度指標均比原狀土樣低；並從軟粘土的礦物成份、化學成份以及微觀結構特徵和類型上定性地分析。
  2. According to the chemical characteristics of organophosphorus pesticide and the principle of organophosphorus pesticide inhibit plants cholinesterase activity, based on determined enzymatic reaction conditions, the separation effect of different developing agent system on 11 organophosphorus pesticides by the means of thin - layer chromatography were researched, followed 10 qualitative analysis methods of organophosphorus pesticide residues were established

    摘要根據有機磷農藥化學特性及其對植物膽堿酯酶抑制的原理，在確定酶促反應條件的基礎上，考察了不同展開體系對11種有機磷農藥的薄層層析分離效果，建立了10種有機磷農藥殘留的定性分析方法。
  3. Abstract : this paper gives a general review of the prod uction of fats and oils from microorganisms, the important factors that work duri ng the process, qualitative analysis, physical and chemical properties and quality properties of the products as well as the microorganism is applied to make the functional oils and fats at home and abroad. the production of functional fats an d oils from microorganisms are also investigated

    文摘:從影響微生物油脂合成的重要因素、微生物油脂的制備、微生物油脂的定性分析、產品的理化指標和質量指標及利用微生物生產功能性油脂等幾個方面，對國內外微生物功能性油脂的研究進行了綜述。
  4. This paper is mainly concerned about how to purify the industrial products of the antioxidant d and bht, how to determine their purities, determining their purities and the purities need to be more than 99 %. in order to attain this objective, the recrystalizing method is used to purify antioxidant d and antioxidant bht. the methods of high performance liquid chromatography ( hplc ) is used to determine the chemical composition of the antioxidant d and bht, it is qualitative analysis

    本論文是以防老劑d與bht工業品為主要原料制備防老劑d與bht標準物質，首先進行了防老劑d與bht的提純和熔點的測定試驗，並通過實驗確定了防老劑d與bht重結晶提純工藝；然後設計區域熔融裝置，擬定操作規程和技術條件，通過用區域熔融法提純重結晶后的防老劑d和bht產品滿足標準物質的純度要求。
  5. The study area is located in wangdonggou, a small watershed in changwu county, shaanxi province. with the principles of combination of qualitative and quantitative analysis, macroscopic and microscopic analysis, the assessment indexes of soil erosion are selected through a series processes such as field investigation, soil sampling, physical and chemical properties analysis of soil, analysis of relations between the influencing indexes and soil erosion, statistics method, and so on. every index is divided into five grades according to the specific criterion, and its weight is drawn by ahp method

    本文以陜西省長武縣王東溝小流域為研究區，在堅持定性分析與定量分析相結合、宏觀與微觀相結合的原則下，通過實地野外調查和採集樣品，土壤樣品的理化分析，土壤侵蝕影響因素的分析，利用數理統計分析方法，篩選出了王東溝流域土壤侵蝕定量評價指標；並對這些指標進行土壤侵蝕評價等級的劃分及權重的確定，從而建立了評價指標體系。
  6. Paper and board. qualitative analysis of mineral filler and mineral coating. chemical method

    紙和紙板中無機填料和無機塗料的定性分析化學法
  7. 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。
  8. The histological descriptions of p. armandi franch in chinese herbal compendium ( zhong hua ben cao ) are different form our observations and the descriptions in chinese flora and sichuan flora in the aspects of the shape of the transverse section and the number of vascular bundles. by means of gc - ms, qualitative and quantitative analysis of the essential oils obtained from different species, different production areas and different extracting methods were carried out. the chemical components and their contents of the essential oils vary by the species, production area and extracting method

    通過對不同品種（馬尾松、雲南松、華山松） 、馬尾松不同產地（萬源、夾江、資中、瀘州、威遠、康定） 、不同提取方法（水蒸氣蒸餾法、超臨界提取法）的松葉揮發油成分的gc - ms分析比較，表明揮發油成分的組成和含量有差異，且品種、產地、提取工藝均對松葉的揮發油成分有影響。
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