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  “(氧”译为未确定词的双语例句
     Under normal oxygen(partial pressure of oxygen=15.9 kPa) after observation for 100 s,10 μ L nutrient solution, 10 μ L puerarin injection(terminal concentration:0.1 mmol/L) and 10 μ L nifedipine(terminal concentration:20 mmol/L) were given to 3 groups with random selection and observed for 100,200,300,400 and 500 s.
     在常氧条件下(氧分压=15.9kPa),观察100s后,随机选择3组分别加入营养液10μL、葛根素注射液10μL(终浓度:0.1mmol/L)、硝苯地平l0μL(终浓度:20mmol/L)观察100,200,300,400,500s。
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     Synthesis of 1-(1H-1,2,4-triazolyl) -1-cycloalkyl-(sub)phenylmethanol
     1-(1H-1,2,4-三唑基)-1-环(氧)烷基取代苯甲醇的合成
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     Characterization and Properties of Poly(oxy- 1,4-phenyleneterephthaloyl- 1,4-phenylene)
     聚(氧-1,4-亚苯基对苯二酰基-1,4-亚苯基)的表征与性能
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     The optimum conditions of synthesis were:molar ratio of Ⅲ to Ⅱ=0.55∶1.00,pressure of Ⅲ=0.12 MPa,pH of medium<1,reaction temperature 45-60 ℃ and reaction time 3 h.
     优化合成条件是 :n(氧 )∶n(乙二醛 ) =0 5 5∶1 0 0 ,氧气压力为0 12MPa ,介质pH <1,反应温度 45~ 6 0℃ ,反应时间 3h。
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     STUDY ON AN INCREASE IN CURRENT DENSITY OF AIR (OXYGEN) ELECTRODE BY Ag-Al(OH)_3 CATALYST WITH EHMO METHOD
     Ag-Al(OH)_3催化剂提高空气(氧)电极电流密度的EHMO研究
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     The dysfunction of oxygen free radical metabolism and overproduction of NO locally might participate in this pathologic process.
     局部?
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     reactive oxygen species
     活性
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Prodigiosin may effectively enter cells and promote the level of intracellular reactive oxygen species (ROSin) in a dose-dependent manner.
      
In the experiments, sufficient air was continually infused into the solution to keep the concentration of dissolved oxygen constant.
      
The residual concentrations of the antioxidants were determined by iodimetry, and the concentration of dissolved oxygen by oxygen electrode.
      
The coordinated oxygen contents in the oxygenated complexes were also determined by weight method.
      
Chitosan-sodium alginate-hemoglobin microcapsules are expected to become an artificial oxygen-carrying therapeutic agent with sustained release for intravenous injection.
      
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Conductivity measurements of the hydrochloride of aniline, methyl aniline and ethyl aniline in water aud in dioxane-water mixtures have been made at 25℃, by using a Jones Bridge. Measurements of conductances at 25℃ of these salts have been made in concentrations ranging from 0.1 normal to 0.001 normal, using water and numerous dioxane-water mixtures as solvents. The conductivities of these salts in water and some dioxane-water mixtures with excess free bases have also been measured. The hydrolysis constants...

Conductivity measurements of the hydrochloride of aniline, methyl aniline and ethyl aniline in water aud in dioxane-water mixtures have been made at 25℃, by using a Jones Bridge. Measurements of conductances at 25℃ of these salts have been made in concentrations ranging from 0.1 normal to 0.001 normal, using water and numerous dioxane-water mixtures as solvents. The conductivities of these salts in water and some dioxane-water mixtures with excess free bases have also been measured. The hydrolysis constants of these salts and the ionizatioa constants of these amines have been calculated from the conductivity measurements. The results are: K_h K_b Aniline hydrochloride 2.7 × 10~(-5) 4. 5 × 10~(-10) Methyl aniline hydrochloride 2.6 × 10~(-5) 4. 6 × 10~(-10) Ethyl aniline hydrochloride 1.1 × 10~(-5) 10. 6 × 10~(-10) A discussion of the effect of dielectric constant upon conductivities has been included. Calculations of the equivalent conductivities of these salts have been made and discussed. The equivalent conducfivities at infinite dilution at 25℃ are: Aniline hydrochloride 166 mho Methyl aniline hydrochloride 161 mho Ethyl aniline hydrochloride 152.5 mho

1. 作者在25℃時,用Jones電導橋测量氫氯化苯胺、N甲基苯胺及N乙基苯胺在水與水及二六圜的混合液裏的電導。這些氫氯化物的濃度為0.1,0.02,0.01, 及0.001 N。至於混合液中二六圜的成份,則爲每100毫升溶液內含有10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90等毫升。 2.含有過量苯胺類的這些氫氯化苯胺類的水溶液、以及水與二六圜的混合液中,也作了電導測定。 3.這些氫氯化物的水解分數、水解常數和這些苯胺的電離常數也作了計算和比較。 4.關於電導和介電常數的關係,在本文中曾爲簡單的討論。 5.這些氫氯化物的無限稀釋時的當量電導,在本文中也作了計算,並與文献中能查到的數據作了比較。

Von Knorre first suggested the use of benzidine and o-tolidine for the determination of tungsten. With the latter reagent, he succeeded also in separat- ing tungstate from phosphate. Later on, o-dianisidine and vanillylidene benzidine have been proposed as precipitants for tungstate. The optimum pH ranges for the quantitative precipitation of tungstate by means of these precipitants and tetraminodiphenyl, which have not yet been found in the literature, are: benzidine pH: 2.0-5.5 o-tolidine 2.9-4.7 o-dianisidine...

Von Knorre first suggested the use of benzidine and o-tolidine for the determination of tungsten. With the latter reagent, he succeeded also in separat- ing tungstate from phosphate. Later on, o-dianisidine and vanillylidene benzidine have been proposed as precipitants for tungstate. The optimum pH ranges for the quantitative precipitation of tungstate by means of these precipitants and tetraminodiphenyl, which have not yet been found in the literature, are: benzidine pH: 2.0-5.5 o-tolidine 2.9-4.7 o-dianisidine 2.0-4.1 vanillylidene benzidine 1.7-3.9 tetraminodiphenyl 1.7-4.8 The effect of introducing various groups into the benzidine molecule upon the tungsten precipitating property is not profound. The relation between quantitative precipitation of tungstate with benzidine and the product of concentrations of both constituents before precipitation Was studied. It is found that quantitative precipitation of tungstate ions Can be realized only when the product of concentrations of reactants before precipitation is equal to or greater than 0.8 × 10~(-5), and the moles of benzidine added must be at least equal to that of tungstate. The gravimetlic determination of tungsten by means of o-tolidine may be applied to samples containing as low as 10 mg of rungsten trioxide in 200 ml solution, if an absolute error of 0. 5 mg can be tolelxted. For larger quantities of tungsten present in sample, the absolute errors amount to only 0.1-0.2 mg. Tetraminodiphenyl may be used as a tungsten precipitant, but no advantage over benzidine Wan found in our present studies.

1.用二胺聯苯及其數種衍生物沉澱鎢酸根時,其適宜的pH範圍如下:[4,4′]二胺聯苯 pH:2.0-5.5[3,3′]二甲基[4,4′]二胺聯苯 2.9-4.7[3,3′]二甲基[4,4′]二胺聯苯 2.0-4.1[4]對胺聯苯氮甲烯[2]甲苯酚 1.7-3.9[3,4,3′,4′]四胺聯苯 1.7-4.8 2.用[4,4′]二胺聯苯作沉澱劑時,二胺聯苯和鎢酸根在沉澱前的濃度之乘積與後者沉澱完全與否的關係,曾加研究。 3.用[3,3′]二甲基[4,4′]二胺聯苯作沉澱劑時,能测定低至10毫克的三化鎢。

Vanillalrhodanine was found to be an excellent reagent for silver ions. Its 0.2 percent solution in acetone gives a brownish violet precipitate with silver ions in ammoniacal solution. Limit of identification: 0.01γ. Concen- tration limit: 1∶5,000,000. Merecric and merourous ions give same reactions, but they can be removed by the addition of aqueous ammonia and the test is to be carried out in the filtrate. Ferric ions, when present in high concentra- tions, interfere the observation of silver.

3甲基4羥基亞苄羅丹寧可以用作銀離子的斑點試劑。其千分之二丙酮溶液與銀離子在含氨溶液中生成棕紫色沈澱。鑑定限度為0.01_γ,濃度界限爲1∶5,000,000。普通離子除汞外皆不干擾。鐵鹽在濃度高時,才妨碍銀的鑑定。

 
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