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linear
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  线性关系
    Results There was the good linear of Mannitol in the range of 1.006×10-2~5.030×10-2 mg/mL;
    结果经测定甘露醇在1.006×10-2~5.030×10-2mg/mL范围内呈良好的线性关系;
短句来源
    berberine hydrochloride showed a good linear relationship in the range of 39.28-78.56 μg(r=0.9999). The average recovery rate was 98.3% with RSD of 1.87%(n=6).
    盐酸小檗碱在39.28~78.56μg范围内与峰面积呈良好的线性关系(r=0.9999),平均加样回收率为98.3%,RSD=1.87%(n=5)。
短句来源
    HPLC method could quantitatively determine sodium danshensu content in Chuanhuang granules. The linear range of sodium danshensu was 0.26-1.84 mg(r=0.9996).
    HPLC测定丹参素钠的含量,丹参素钠在0.26~1.84 mg的范围内,线性关系良好(r=0.9996)。
短句来源
    The linear range of ferulic acid was 0.038-1.230 μg(r=0.9999). The mean recovery was 97.49% with RSD of 1.32%(n=6).
    阿魏酸含量在0.038~1.230μg范围内有良好的线性关系(r=0.9999),平均回收率为97.49%,RSD=1.32%(n=6)。
短句来源
    Results:The linear range of rutin was 0.2435~1.2175μg,r=0.9996,The average recovery was 101.3%,RSD1.1%,Conclusion:The method was simple,rapid,and accurate and suitable for the detection of Zhi Su-ning tablet.
    结果:芦丁在0.2435~1.2175μg范围内呈线性关系,r=0.9996,平均加样回收率为101.3%,RSD为1.1%。 结论:操作简便,结果准确,重现性好,可以控制痔速宁片的质量。
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  “linear”译为未确定词的双语例句
    RESULTS The calibration curve showed a good linear correlation within the concentration range of 0.13-2.08 μg(r=0.9999). The average recovery was 98.58% with the RSD of 0.65%(n=6).
    结果丹酚酸B进样量在0.13~2.08μg范围内线性关系良好(r=0.9999),平均回收率为98.58%,RSD=0.65%(n=6)。
短句来源
    The flow rate of the mobile phase was 1.0 ml·min-1.RESULTS The linear range of ferulic acid was in the range of 4.5591.00 μg·ml-1(r2=0.9998).
    min-1。 结果阿魏酸在4.55~91.00μg.
短句来源
    RESULTS The standard curve was linear within the concentration range of 0.027-0.163 μg. The average recovery was 97.8%.
    结果肉桂酸在0.027~0.163μg范围内线性关系和精密度良好,平均回收率为97.8%。
短句来源
    RESULTS The linear range of capcaisin was 6.04-241.6 μg·ml-1 and the linear relationship was fine(r=0.9997).
    结果在6.04~241.60μg.
短句来源
    the flow rate was 1.0 ml·min-1.RESULTS The calibration curve was linear over the range of 1.1-8.8 μg(r=0.9999),The average recovery of the method was 98.80%(RSD=1.2%,n=5).
    结果梓醇在1.1~8.8μg范围内线性关系良好(r=0.9999),其平均回收率为98.80%(RSD=1.2%,n=5)。
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  linear
Reductive group actions on affine quadrics with 1-dimensional quotient: Linearization when a linear model exists
      
Such an action is called linearizable if it is equivalent to the restriction of a linear orthogonal action in the ambient affine space of the quadric.
      
A linear model for a given action is a linear orthogonal action with the same orbit types and equivalent slice representations.
      
We prove that if a reductive group action on an affine quadric with a 1-dimensional quotient has a linear model, then the action is linearizable.
      
We find presentations for the irreducible crystallographic complex reflection groupsW whose linear part is not the complexification of a real reflection group.
      
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A new method for the biological assay of vegetable purgatives based on the numbers of wet faeces excreted by groups of mice after dosing is described. The relation of the number of wet faeces per group of mice to the logarithm of the dose was found to be linear. A cage has been specially designed for this assay and it has been found advantageous to incorporate a definite proportion of water in the diet during test. 40 mice divided equally into 4 groups were used in each assay. 2 groups received the standard...

A new method for the biological assay of vegetable purgatives based on the numbers of wet faeces excreted by groups of mice after dosing is described. The relation of the number of wet faeces per group of mice to the logarithm of the dose was found to be linear. A cage has been specially designed for this assay and it has been found advantageous to incorporate a definite proportion of water in the diet during test. 40 mice divided equally into 4 groups were used in each assay. 2 groups received the standard preparation and the other 2 groups received the test preparation. The standard deviation of a single determination based on 9 such assays was estimated to be 15.7 per cent. For rhubarb and its preparations, a“6-point”assay is advocated. With suitable restric-tion in the design of the assay, it is possible to calculate the potency by simple methods. Powdered crude drugs are used as laboratory standards in the assay of senna and rhubarb. The doses of cascara bark required to produce distinctive responses are too inconveniently large to be administered in suspension. It was found possible to use a potent extract of cascara in place of the powdered bark as a laboratory standard. Examples of the assay and the subsequent calculations are given. The method described is not only convenient in use but also gives a comparatively high degree of accuracy. The method has been successfully applied to senna leaf, senna fruit, rhubarb, cascara sagrada and extracts and commercial preparations made from these drugs, pure glycosides(sennosides A and B) and pure anthracene compounds(aloe emodin and aloe-emodine anthranol).

(1)本文详述植物性泻药的一种新的生物测定法,此法係用小白鼠在服药后所排出的濕粪数为基础,以定泻药的效价。(2)小白鼠服药後所排出的湿粪数与剂量指数的关係经证明为一直线。(3)本法所用鼠笼係特别设计,并证明在饲料内加入一定量的饮水,具有多种优点。(4)番泻效价的测定,每次用小白鼠4组,每组10只。2组给与标准品,另外2组给与试验品。根据9次试验的结果,试验的标准差是15.7%.(5)大黄效价的测定,以采用“6点”法为宜,即每次试验用小白鼠6组,3组给与标准品,另外3组给与试验品,所得的准确度与上述相仿。波希鼠李皮浸膏的效价测定,则用“4点”法或“6点”法均可。(6)所有试验一律采用粉状生药为实验室的比较标准,但是波希鼠李皮的效价太低,它的粉末不适於作为标准之用,可用波希鼠李皮乾浸膏来代替,作为比较标准。(7)本文对於效价测定及其计算方法都举例说明,并介绍了比较常法为简捷的相关效价计算法。(8)本法不但方便易行,而且有相当高的准确度;曾用在番泻、大黄、波希鼠李皮及其制剂,以及一些纯粹的蒽醌衍生物的效价测定,都获得了满意的结果。

A specimen of psoralen, extracted from Psoralea orylifolia L. and recrystaliized from ethanol, was analysed by the polarographic method. Owing to the low solubility of psoralen in water, a 0.5M solution of lithium chloride in 80% ethanol containing 0.01% gelatin was used for the base electrolyte. A linear relationship was found to exist between the polarographic current and the concentration of psoralen within the range of 4.8×10~(-4) M to 6.4×10~(-3) M. The manually registered half-wave potential, after...

A specimen of psoralen, extracted from Psoralea orylifolia L. and recrystaliized from ethanol, was analysed by the polarographic method. Owing to the low solubility of psoralen in water, a 0.5M solution of lithium chloride in 80% ethanol containing 0.01% gelatin was used for the base electrolyte. A linear relationship was found to exist between the polarographic current and the concentration of psoralen within the range of 4.8×10~(-4) M to 6.4×10~(-3) M. The manually registered half-wave potential, after correction for IR drop in the cell circuit, was-1.58 V (vs. S. C. E.) at 25℃. The polarographic current was diffusion controlled and only one electron was transferred in the electrode process. The polarographic method is simple and dependable, and can be recommended for pharmaceutical analysis.

补骨脂呋喃香豆素可用以治疗白斑病。本实驗所用的試样,系从中药补骨脂中提取,并經乙醇重結晶,加以提純。因此种物貭在水中的溶解度很低,故采用80%乙醇中的0.5M氯化鋰溶液(加有0.01%明胶)为底液。极譜电流与补骨脂呋喃香豆素的浓度,在4.8×10~(-4)至6.4×10~(-3)M的范围內,成线性关系。在25℃用手工測得的半波电位,改正由于极譜小池线路电位降所产生的偏差后,为-1.58伏(对飽和甘汞电极)。此外尚証明了此种极譜电流是扩散控制的,而电极过程中的电子轉移数(n值)則为1。此种方法簡便可靠,适于药物分析之用。

A thin-layer chromatographic method is proposed for separation of strychnine and brucine in the Nux Vomica preparations such as extract, liquid extract, and tincture of Nux Vomica. Good separation is obtained with alumina layer (particle size of 200 mesh, thickness 200μ) by using benzene-ethyl acetate (1:2) as solvent. After the chromatogram is developed, the spot of strychnine is collected with collecting tube and eluted with ethanol followed by catalytic polarographic determination in the base solution containing...

A thin-layer chromatographic method is proposed for separation of strychnine and brucine in the Nux Vomica preparations such as extract, liquid extract, and tincture of Nux Vomica. Good separation is obtained with alumina layer (particle size of 200 mesh, thickness 200μ) by using benzene-ethyl acetate (1:2) as solvent. After the chromatogram is developed, the spot of strychnine is collected with collecting tube and eluted with ethanol followed by catalytic polarographic determination in the base solution containing McIlvaine buffer and 0.1 M KI. The analytical method employed is based on the linear relationship of concentration of strychnine with catalytic polarograhic current. The concentration of strychnine is in the range of 3×10~(-5)—1.2×10~(-4)M. The method has the advantage of being simpler and more rapid than the extraction procedure and gives results close to the pharmacopeiacal methods. It can be applied to simultaneous determination of strychnine and brucine in the Nux Vomica preparations.

本文提出了应用氧化鋁薄层,分离番木鳖制剂中士的宁和马钱子碱的简单方法。薄层分离后,士的宁斑点用作者等改良的斑点收集管收集,以乙醇洗脫后于Mcllvaine缓冲液及0.1M/碘化钾溶液的底液中测定其催化极谱电流。在浓度为3×10~(-5)—1.2×10~(-4)M/范围內其浓度与催化电流值成一直线关系,可直接测定其含量。方法较为迅速简便,灵敏度较高且较为准确。最大测定误差为±2%。可用于番木鳖浸膏、番木鳖流浸膏及番木鳖酊的测定。

 
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