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- METHODS Gradient elution HPLC was used to analyze the alcohol extracts of Radix Salviae Miltiorrhizae. 方法采用梯度洗脫高效液相色譜法分析丹參乙醇提取物。
- The HPLC was subjected to gradient elution and negtive ion mode was adopted in mass spectrum. 高效液相色譜用梯度洗脫,質(zhì)譜用負離子模式。
- The extracted phenols were detected by an ODS column, gradient elution and programmable UV wavelength detector. 實(shí)驗以ODS柱為分離柱，采用梯度洗脫，可編程紫外檢測器進(jìn)行樣品檢測。
- The effective and active components in bamboo leaves were separated using gradient elution and column chromatography. 采用梯度洗脫及柱色譜法對竹葉中的有效活性成分重點(diǎn)為黃酮進(jìn)行了分離研究、提純。
- In order to get better resolution, a simple device which can produce gradient elution is designed. 為了達到更好的分離效果,我們參考文獻上有關(guān)于梯度沖堤的方法,設計出一個(gè)簡(jiǎn)單的裝置。
- A simple gradient elution device and a UV-Vis spectrophotometric detector for HPLC was de, signed. 設計了一種用于高效液相色譜分析的簡(jiǎn)易梯度洗提裝置及UV分光光度檢測器。
- Microcystins were successfully separated under isocratic and gradient elution,and the latter has better efficiency. 在等度及梯度洗脫條件下,三種毒素均被完全分離,梯度洗脫時(shí)峰形更好,檢測靈敏度較高。
- Gradient elution HPLC was used to analyze methanol extracts from white muscardine silkworm,and analyzed the data of their fingerprints by similarity. 采用梯度洗脫高效液相色譜法對獲取的指紋圖譜數據進(jìn)行相似度分析,建立了白僵蠶的指紋圖譜。
- METHODS Gradient elution method was used to determine the content of andrographolide and dehydroandrographolide in Qinghuo Zhimai tablets. 方法:用梯度洗脫法測定清火梔麥片中穿心蓮內酯和脫水穿心蓮內酯的含量。
- A novel method for the fast optimization of binary multi-step gradient elution in reversed phase-high performance liquid chromatography was proposed. 提出了一種反相高效液相色譜中二元多臺階梯度分離條件快速優(yōu)化方法。
- Dual linear gradient elution can be performed with two specially made glass container and a high pressure constant flow pump. 用兩個(gè)特制的玻璃容器及一臺平流泵即可實(shí)現二元線(xiàn)性梯度洗提。
- In this way, the different grades of acetonitrile and methanol were tested to show the feasibility with which they are applied in gradient elution. 按照此法，對國產(chǎn)不同等級的乙腈和甲醇進(jìn)行了測試，指明這些試劑用于梯度洗脫的可能性。
- Gradient elution HPLC was used to analyze methanol extracts from white muscardine silkworm, and analyzed the data of their fingerprints by similarity. 采用梯度洗脫高效液相色譜法對獲取的指紋圖譜數據進(jìn)行相似度分析，建立了白僵蠶的指紋圖譜。
- Objective:To study on chromatography fingerprint(CFP) of Huangqi herbs.Method: HPLC was used on a Hypersil ODS column with water-acetonitriles gradient elution. 應用高效液相色譜法研究了黃芪的指紋圖譜,并對毛蕊異黃酮、芒柄花素及黃芪甲苷進(jìn)行了含量測定。
- Shim-pack VP-ODS is used as column, ACN: EtOAc(21:3, V/V) as mobile B, and aqueous acetic acid (50:1,V/V) as mobile A, linear gradient elution is adopted. 流動(dòng)相A為2%25醋酸(HAc)，流動(dòng)相B為乙腈(ACN)； 乙酸乙酯(EtOAc)=21：3(v/v)，梯度洗脫；
- Methods: Chromatographic fingerprint of Coleus forskohlii was investigated by HPLC-ELSD and gradient elution mode was applied to chromatographic separation. 方法:采用HPLC-ELSD法,梯度洗脫,研究毛喉鞘蕊花藥材的指紋圖譜。
- 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,以君藥紅參中人參皂苷為檢測指標,采用梯度洗脫的方法,控制其中紅參主要成分的色譜峰。
- 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. 方法青蒿經(jīng)石油醚提取濃縮,浸膏經(jīng)過(guò)硅膠柱,用不同配比的乙酸乙酯洗脫,用TLC法跟蹤,UV法檢測。
- Two dioscin products and aglycone from enzyme reaction are separated and purified by silica gel column gradient elution with the solvent of chloroform and methanol. 摘要用柱層析法對穿山龍薯蕷皂苷酶解產(chǎn)物進(jìn)行分離純化（硅膠柱中以氯仿甲醇洗脫），得到2種單體皂苷和皂苷元。
- Methods Food samples were collected and determined by using autoinjector with online derivation function, gradient elution program and tandem detecting technicque. 方法使用帶自動(dòng)衍生功能的自動(dòng)進(jìn)樣器進(jìn)行在線(xiàn)衍生,梯度分離,利用二極管陣列-熒光檢測器串聯(lián)分析。
