采用流动相梯度淋洗,紫外检测器波长编程的方法测定富集后的酚类化合物,并测定了方法的精密度、准确度和检测限。
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.
本文着重介绍水平管中这种两相流动的流动型态、压力梯度和持液率的预测方法。
This article mainly introduces the prediction method of the flow pattern, pressure gradient and liquid holdup of two phase flow in horizontal pipelines.
对流动相组成、流率、柱温、梯度速率、pH值、盐浓度以及缓冲液浓度对容量因子(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.
继用氯仿-四氢呋喃-水(500:500:8)为流动相,梯度洗脱其他强保留组分。
Chloroform - tetrahydrofuran - water (500:500:8) was used as mobile phase for the gradient elution of other strongly retained substances.
方法以甲醇-水为流动相,采用HPLC梯度洗脱法,测定了雷公藤药材的根、枝、叶中雷公藤甲素在不同存贮期的含量。
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.
用初始流动相乙腈-水(40:6 0)洗脱至主峰出峰保留时间的2.3倍时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).
研究了流动相的选择,梯度淋洗程序的最佳化以及进样浓度与峰高的线性关系。
The selection of moving phase, gradient eluting procedure and line relation of sampling concentration with peak height were discussed.
采用氨基色谱柱,流动相为0.1%三氟乙酸-乙腈(梯度洗脱)。
NH2 column was used with the mobile phase of 0.1% trifluoroacetic acid-acetonitrile by gradient elution.
结果表明,采用梯度设计可实现涂层稳定成形所需的液相烧结,避免了常规液相烧结时涂层的粘弹性流动。
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...
结果表明,采用梯度设计可实现涂层稳定成形所需的液相烧结,避免了常规液相烧结时涂层的粘弹性流动。
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...
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