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在进样
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  on-column injection
     The detection limit is 10 pg/g when on-column injection volume is 100 μL.
     在进样量为10 0 μL时,方法的检出限达到10pg g。
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  “在进样”译为未确定词的双语例句
     Results Good linearity of icariine was showed when the amount of sample added was within the range of 0.058~1.153 g(r=0.999 8),the average rate of recovery was 98.9%,and RSD was 2.3%.
     结果淫羊藿苷在进样量为0.058~1.153μg范围内线性关系良好(r=0.999 8),平均回收率为98.9%,RSD=2.3%。
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     Result:The content of puerarin in Guan Maining soft capsule has a perfect linearity distribution between 0.03616 and 0.32544μg(r=0.9998),the average yield is(100.6%)(n=6),RSD is 1.10%.
     结果:葛根素在进样量为0.03616~0.32544μg范围内,有良好的线性关系(r=0.9998),方法的回收率为100.6%(n=6),RSD为1.10%。
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     Paeoniflorin was obtained in the range of 10.4~52.0μg/ml,r=0.9998.The average recovery of Paeoniflorin was 98.73%,RSD=1.93%.
     芍药苷含量测定在进样浓度10.4~52.0μg/m l之间呈良好的线性关系,r=0.9998,回收率为98.73%,RSD=1.93%。
短句来源
     RESULTS Within the range of 5.0μg~80.0μg, peak area and injection quantity were in linear correlation (r=1.0000).
     结果  在进样量 5 .0μg~ 80 .0μg的范围内 ,峰面积与进样量之间呈良好的线性关系 ( r=1.0 0 0 0 )。
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     Results The calibration curve was linear over the range of 1.001~10.01 μg of stachydrine(r=0.999 9). The average recovery was 97.5% with RSD 1.13%.
     结果盐酸水苏碱在进样量为1.001~10.01μg范围内具有良好的线性关系,r=0.999 9,方法平均回收率97.5%,RSD=1.13%。
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  相似匹配句对
     injection:hydrostatic for 30 s;
     虹吸法进样 30s ;
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     It was injected to the column by pressure 25 mBar×5 s.
     压力进样5 s。
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  on-column injection
The best approach to using glass open tubular columns in routine work is the adoption of wide bore columns and on-column injection.
      
On-column injection in the stopped-flow mode with open-tubular columns
      
The cold-on-column injection technique was found to produce the best results, being comparable to the excellent precision of a packed column.
      
Determination of triazine herbicides by capillary gas chromatography with large-volume on-column injection
      
This paper describes a study of the potential of large-volume on-column injection for the determination of triazine herbicides in clean water samples (ground-water).
      
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This paper deals with a theoretical method to determine the amount of crowning. The distribution of contact stresses on the flanks of a crowned pinion and a gear are treated as a series of complete or partial semi-ellipsoids of the same geometric parameters, the total volume of which equals the whole contact load. From this point of view a series of equations for the computation of the maximum stress are obtained. The calculation of contact stresses considering the existence of alignment errors will thus be...

This paper deals with a theoretical method to determine the amount of crowning. The distribution of contact stresses on the flanks of a crowned pinion and a gear are treated as a series of complete or partial semi-ellipsoids of the same geometric parameters, the total volume of which equals the whole contact load. From this point of view a series of equations for the computation of the maximum stress are obtained. The calculation of contact stresses considering the existence of alignment errors will thus be very helpful to the selection of a proper amount of crowning for gear drives.

流动注射分析法已发展成为一个很好的分析手段和一种很有用的测定方法。本文讨论应用碘量法来进行流动分析测试。用H_2SO_4和KI与H_2O_2反应,在420nm处测其吸光度。每个试样均有重现形状的单峰出现。在进样后30 s就可读出数据。其最低检出限量为1μg,工作曲线呈现极好的重现性。所得结果稳定,其相关系数超过0.9993,与KMnO_4法相比,其相对误差小于2.5%。同时,对某些分析条件,诸如H_2SO_4和KI的流速、样品用量、反应管长等因素进行了探讨。

A method for the fluorometric determination of pyridine and its derivatives has been developed by flow injection analysis using hydrogen peroxide at high temperature. The reaction system consists of two pumps to deliver reagent and carrier stream, sample injector, reaction coil (0.5 mm ID×15m, 150℃), cooling coil (0.5mm ID×3m, 30℃), and cooling coil (0.5mm ID×20cm, 0℃). The wavelengths of the fluorometric spectrophotometer were set at Ex 305~350 nm and Em 380~410 nm, the flow rate of each solution was 1.0 ml/min....

A method for the fluorometric determination of pyridine and its derivatives has been developed by flow injection analysis using hydrogen peroxide at high temperature. The reaction system consists of two pumps to deliver reagent and carrier stream, sample injector, reaction coil (0.5 mm ID×15m, 150℃), cooling coil (0.5mm ID×3m, 30℃), and cooling coil (0.5mm ID×20cm, 0℃). The wavelengths of the fluorometric spectrophotometer were set at Ex 305~350 nm and Em 380~410 nm, the flow rate of each solution was 1.0 ml/min. The carrier stream was deionized water. The reaction solution containing 10 mmol/L hydrogen peroxide in 0.2 mol/L phosphate buffer (pH 6.0) gave the maximum fluorescence intensity for pyridine and its derivatives. Linear calibration curves were obtained from 5 ng up to 100 ng of pyridine and its derivatives. The coefficient of variations for 2.5 ng (n = 10) and 25 ng (n= I0) of isonicotinic acid, isoniazide and acetylisoniazide were 1.8% and 1.1%, 1.6% and 1.2%, 2.1% and 1.4%, respectively. The detection limit (S/N = 3 ) was 250 pg for isonicotinic acid, 500 pg for isoniazide, acetylisoniazide, nicotinamide, isonicotinamide, nicotinic acid, and 2.5 ng for pyridine, nicotine, 2- picoline, 2- picolinamide and picolinic acid. The carrier stream containing organic solvent (methanol, ethanol or acetonitrile)decreased the fluorescence intensity, but in the case of acetonitrile there was less decrease than methanol or ethanol. This method allowed the analysis of 30 samples/h.

本文利用吡啶及其衍生物与过氧化氢的加热反应,建立了流动注射荧光分析法。吡啶及其衍生物在5~100ng范围内具有良好的线性关系(r=0.999).异烟肼、乙酰异烟肼和异烟酸在进样25ng时的相对标准偏差(n=10)平均为1.2%。异烟肼、乙酰异烟肼的检出限(S/N=3)为0.5ng,异烟酸的检出限为0.25ng.分析速度为30样/h。

The determination of Re-Os isotopes for geological samples by ICP/MS was investigated. The measured count rate of Os(Ⅷ) is 50 times as great as that of Os( IV , VI ) when introducing the sample solution with a Meinhard concentric nebulizer. Problems encountered in mass discrimination correction were discussed. The serious memory effect of Os in the whole sample introduction system was overcome by rinsing with an oxidizing agent. Re and Os contents of 6 molybdenites from 5 countries were determined by isotope...

The determination of Re-Os isotopes for geological samples by ICP/MS was investigated. The measured count rate of Os(Ⅷ) is 50 times as great as that of Os( IV , VI ) when introducing the sample solution with a Meinhard concentric nebulizer. Problems encountered in mass discrimination correction were discussed. The serious memory effect of Os in the whole sample introduction system was overcome by rinsing with an oxidizing agent. Re and Os contents of 6 molybdenites from 5 countries were determined by isotope dilution-ICP/MS and the ages were calculated.

研究了用ICPMS法测定地质样品Re-Os同位素的条件。通过选用Meinhard同心雾化器进样对Os(Ⅷ)水溶液进行测定,可使Os的测定灵敏度提高50倍。讨论了质量歧视效应校正中的有关问题。采用氧化剂清洗,克服了Os在进样系统中的严重记忆效应。用同位素稀释法测定了辉钼矿中Re和~(187)Os的含量,计算了成矿年龄。

 
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