• 采用流动梯度淋洗紫外检测器波长编程方法测定富集后的类化合物,测定方法精密度准确度检测

    The extracted phenols were detected by gradient eluted mobile phase and UV wavelength programming HPLC. The precision, accuracy and detection limits of established methods were determined.

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  • 本文着重介绍水平中这种两流动流动型态压力梯度液率预测方法

    This article mainly introduces the prediction method of the flow pattern, pressure gradient and liquid holdup of two phase flow in horizontal pipelines.

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  • 流动组成梯度速率pH浓度以及缓冲液浓度容量因子(K')的影响分别进行了讨论

    The effects of mobile phase composition, flow rate, column temperature, gradient ramp, ph value, salt concentration, and buffer concentration on capacity factors (K ') were respectively discussed.

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  • 继用氯仿-四氢呋喃-(500:500:8)流动梯度洗脱其他保留组分。

    Chloroform - tetrahydrofuran - water (500:500:8) was used as mobile phase for the gradient elution of other strongly retained substances.

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  • 方法甲醇-水流动采用HPLC梯度洗脱测定雷公藤药材中雷公藤甲素不同存贮含量

    METHOD HPLC gradient elution method was used with methanol-water as the mobile phase to determine the contents of triptolide in its root, branch and leaf at different periods of its storage.

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  • 初始流动-水(40:6 0)洗脱至主峰出保留时间2.3开始进行梯度洗脱比较合理

    The gradient elution is reasonable when the retention time is 2.3 times after the appearance of prominent peak with initial mobile phase acetonitrile-water (40:60).

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  • 研究流动选择梯度淋洗程序的最佳化以及浓度线性关系

    The selection of moving phase, gradient eluting procedure and line relation of sampling concentration with peak height were discussed.

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  • 采用氨基色谱流动为0.1%三氟乙酸-乙(梯度洗脱)。

    NH2 column was used with the mobile phase of 0.1% trifluoroacetic acid-acetonitrile by gradient elution.

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  • 结果表明采用梯度设计实现涂层稳定成形所需烧结,避免常规烧结时涂层的弹性流动

    The results show that the liquid phase sintering necessary for coating stability can be realized by gradient designing, the viscous flow of ordinary liquid ph...

    youdao

  • 结果表明采用梯度设计实现涂层稳定成形所需烧结,避免常规烧结时涂层的弹性流动

    The results show that the liquid phase sintering necessary for coating stability can be realized by gradient designing, the viscous flow of ordinary liquid ph...

    youdao

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