METHODS Gradient elution method was used to determine the content of andrographolide and dehydroandrographolide in Qinghuo Zhimai tablets.
方法：用梯度洗脱法测定清火栀麦片中穿心莲内酯和脱水穿心莲内酯的含量。
METHODS Gradient elution HPLC was used to analyze the alcohol extracts of Radix Salviae Miltiorrhizae.
方法采用梯度洗脱高效液相色谱法分析丹参乙醇提取物。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Ammonium chloride is a better eluant, and L-leucine and L-valine can be separated successfully by gradient elution.
结果以氯化铵作洗脱剂进行梯度洗脱，成功的将l亮氨酸与l缬氨酸分离。
Method The main ingredient of the injection, Red Ginseng, was determined by HPLC and used binary solvent-delivery gradient elution to control the main component in Red Ginseng.
方法采用HPLC法，以君药红参中人参皂苷为检测指标，采用梯度洗脱的方法，控制其中红参主要成分的色谱峰。
Chloroform - tetrahydrofuran - water (500:500:8) was used as mobile phase for the gradient elution of other strongly retained substances.
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。
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.
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。
The adenosine in functional food was determined by reversed-phase high performance liquid chromatography and linearity gradient elution in this paper.
本文应用反相高效液相色谱线性梯度洗脱法对保健品中的腺苷进行分离腺苷测定。
A simple gradient elution device and a UV-Vis spectrophotometric detector for HPLC was DE, signed.
设计了一种用于高效液相色谱分析的简易梯度洗提装置及UV分光光度检测器。
Dual linear gradient elution can be performed with two specially made glass container and a high pressure constant flow pump.
用两个特制的玻璃容器及一台平流泵即可实现二元线性梯度洗提。
Objective to establish a reversed phase high performance liquid chromatography gradient elution method for determination of the related substances in allopurinol sodium for injection.
目的建立测定注射用别嘌醇钠有关物质的高效液相梯度洗脱法。
Conclusions the reversed phase high performance liquid chromatography gradient elution method is simple and accurate for the determination of the related substances in allopurinol sodium injection.
结论高效液相梯度洗脱法可用于测定注射用别嘌醇钠中的有关物质。
The elution mode, composition of the mobile phase, content of the organic acid and the flow-rate of the mobile phase were optimized and thus a new flow rate gradient was proposed.
对制备色谱的洗脱方式、洗脱剂组成、浓度、洗脱速度等参数进行优化，提出并应用了流动相速度梯度洗脱方法。
MethodsChromatographic fingerprint of Semen Cassiae was investigated by RP-HPLC and the gradient elution mode was applied to chromatographic separation.
方法采用RP -HPLC法，梯度洗脱，研究决明子饮片的指纹图谱，并作相似度比较分析。
Gradient elution: the configuration of the equipment employed may significantly alter the resolution, retention time and relative retentions described in the method.
梯度洗脱：仪器的配置可能会影响到方法所描述的分离度、保留时间以及相对保留时间。
Method: RP- HPLC, linear gradient elution, LC/MS, etc. were used to determine the fingerprint and identify the main pea ks in the HPLC fingerprint.
方法：利用RPHPLC ，采用线性梯度洗脱等进行指纹图谱的测定，并应用LC/MS技术指认指纹图谱中的主要色谱峰。
METHODS Amino acid and peptides in Shuxuetong injection were determined with gradient elution.
方法利用高效液相色谱采用梯度洗脱测定疏血通注射液中的氨基酸。
The ideal model of liquid chromatography in gradient elution was solved by using the characteristic approach on the assumption of a linear solvent strength model.
基于线性溶剂强度模型，应用特征线分析的方法求解梯度洗脱模式下的理想液相色谱模型。
Methods: The gradient elution mode was applied in chromatographic separation and data were analyzed to develop HPLC fingerprint analysis of Safflor Yellow.
方法：采用梯度洗脱的方法进行色谱分离，对各色谱峰进行数据处理，得出红花黄色素的指纹图谱。
The retention volume of targeted compounds was predicted in the step gradient elution conditions.
预测了台阶梯度洗脱条件下待分离物质的保留体积。
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).
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。
Serum lipoproteins were separated by the method of double gradient polyacrylamide gel electrophoresis (DGPAGE). They were collected after elution from electrophoretic gels respectively.
应用DGPAGE法分离血清脂蛋白，将各电泳区带的脂蛋白及其亚组分分别洗脱和收集。
Lignocellulose was prepared from cedar sawdust and used to isolate caffeine and tea catechins from tea extract by static adsorption and gradient elution using water and 80% ethanol.
以杉木屑为原料制备木质纤维素，采用静态吸附、蒸馏水和80%乙醇分段洗脱等实验，研究其对茶儿茶素类及咖啡因选择性吸附作用。
NH2 column was used with the mobile phase of 0.1% trifluoroacetic acid-acetonitrile by gradient elution.
采用氨基色谱柱，流动相为0.1%三氟乙酸-乙腈(梯度洗脱)。
The softwares including computer automatic controlling, signals collecting and restoring, step gradient elution controlling, data resolution were programed.
编制了计算机自动控制程序，信号采集和存取程序，分级淋洗程序和色谱数据分析处理程序。
HPLC method with gradient elution for determination of typhaneoside(1) and isorhamnetin-3-O-neohesperidoside(2) in total flavonoid extracts of Pollen typhae was established.
建立了HPLC法测定蒲黄总黄酮提取物中香蒲新苷（1）及异鼠李素-3-O-新橙皮糖苷（2）的含量。
Methods: (1) to separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
The coal liquefaction oil was separated using gradient elution method and the aromatics were analyzed by gas chromatography and mass spectrometry (GCMS) and 1Hnuclear magnetic resonance (1HNMR).
采用梯度洗脱技术对煤液化油进行了分离，并对芳烃部分进行了气相色谱质谱（GCMS）和核磁共振氢谱（1HNMR）分析。
Methods Artemisinin is extracted with petroleum ether and pass column of silica gel and gradient elution with ethyl acetate, then it is tracked with TLC and detected with UV-VIS.
方法青蒿经石油醚提取浓缩，浸膏经过硅胶柱，用不同配比的乙酸乙酯洗脱，用tLC法跟踪，UV法检测。
Objective:To study on chromatography fingerprint(CFP) of Huangqi herbs. Method: HPLC was used on a Hypersil ODS column with water-acetonitriles gradient elution.
应用高效液相色谱法研究了黄芪的指纹图谱，并对毛蕊异黄酮、芒柄花素及黄芪甲苷进行了含量测定。
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