The researchers used water and an ultrasonic extraction process, followed by gas chromatography-mass spectrometry to quantify the amount of cocaine in more than 230 bills collected in 17 cities.
研究人员从17个城市收集到230张纸币样本，并使用水和超声波提取方法，再加上气相色谱分析-质谱法对样本进行测试。
Thorium is separated by extraction chromatography.
用萃取色层法分离钍。
Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.
分别采用硅胶柱色谱法和溶剂抽提，分离优质塑料抛光膏中的油脂和磨料部分。
The application of molecular recognition in affinity chromatography, solid extraction, membrane separation technology raises the separation efficiency and separates those optical isomeric compounds.
分子识别应用于亲和色谱、固相萃取、膜分离技术极大地促进了分离效率的提高和一些复杂物质的拆分。
The method of extracting the auxin in seaweeds with organic solvent, separating and purifying the auxin by ether extraction method and column chromatography has been established.
确立了以有机溶剂提取海藻中的生长素，以乙醚萃取法和柱层析法对生长素进行分离纯化的方法。
The sugar content in the hydrolysate of cocoanut shell is determined by treating samples containing sugar with derivatization extraction method and capillary gas chromatography.
采用衍生化—萃取法处理含糖样品，毛细管气相色谱测定糖的方法，测定了椰子壳水解液中糖的含量。
The soybean phosphatidylethanolamine and phosphatidylinositol were prepared by combining methods of solvents extraction and silica gel column chromatography from soybean oil sediment.
采用溶剂萃取法和柱色谱法相结合的工艺，从大豆油脚中制备肌醇磷脂，研究了不同洗脱剂对柱色谱分离脑磷脂和肌醇磷脂效果的影响。
Method: Ethylaeetate extraction and polyamide chromatography isolation was used to isolate orientin.
方法：采用醋酸乙酯萃取-聚酰胺柱色谱分离荭草苷。
The techniques of extraction and separation for active components from natural products are summarized, and the methods of extraction and chromatography are presented emphatically.
综述天然产物中活性成分的提取分离及分析技术，并着重对萃取技术、色谱技术进行论述。
We have also established an accute and effective calibrating system-gas chromatography and solid phase micro extraction (SPME).
并且还建立了一套准确而有效的气相色谱和固相微萃取定标系统。
A rapid, simple and accurate method for the determination of momordicoside A has been established using solid phase extraction (SPE) followed by high performance liquid chromatography (HPLC).
建立了一个快速、简单、准确的固相萃取和高效液相色谱相结合的测定苦瓜甙A含量的方法。
Study was carried out on such indexes as chromatography condition, sample disposal, recovery rate test, extraction efficiency test, linear range, detection limit and accuracy of the method.
方法按照有关检测方法的研制规范的要求，研究了色谱条件的选择、样品的处理方法、回收率试验、萃取效率试验、方法的线性范围及检出限、方法的精密度等指标。
By solvent extraction, column chromatography, and crystallization, fexofenadine (96.3% purity) was obtained with yield 63.5%.
通过对发酵液进行溶媒抽提、柱层析、重结晶，得到纯品，收率达到63.5%，纯度96.3%。
A method for analysis of trace organophosphorus pesticides in water with plant enzyme membrane extraction-gas chromatography has been developed.
建立了植物酶膜萃取气相色谱分析水体中痕量有机磷农药的方法。
Phosphatidylcholine of high purity(PC, content 92.80%) was prepared from market soybean power phospholipids(PC content 14.05%) by using solvent extraction and column chromatography.
采用溶剂提取和柱色谱法分离纯化市售大豆粉末磷脂（卵磷脂含量14.05%），得到高纯度的卵磷脂产品（纯度92.80%）。
A method for analysis of tebuconazole in water using solid phase extraction and high performance liquid chromatography was developed.
首次建立了固相萃取-高效液相色谱法检测水中戊唑醇的方法并优化了固相萃取和高效液相色谱的条件。
The main flavor compounds in different maturity tobacco were isolated by simultaneous distillation and extraction (SDE), and then were quantitatively analyzed by capillary gas chromatography.
利用同时蒸馏萃取装置提取不同成熟度烟叶样品的挥发性香味成分，经毛细管气相色谱法对烟叶中主要香味成分变化进行了定性定量分析。
This technique is developed on the basis of the Schaefer method (FRG) with the addition of a hydrogen extraction device to a conventional gas chromatography.
本方法是在西德谢菲尔方法的基础上，自制氢抽提装置，采用一般气相色谱仪组装成的一套比较成熟的分析方法。
Cholesterol oxidation products are determined in whole milk powder by gas chromatography, including of extraction of lipid and sample purification.
利用该法测定了全脂奶粉中微量胆固醇氧化物的含量，同时对样品中粗脂类的提取及净化过程作了研究。
Methods: A Solid Phase Extraction was used to purify the dissolved sample. The extracts were separated and detected by ion chromatography post-column derivation with ultraviolet detector.
方法：样品溶解后，采用固相萃取法去除大部分水溶性大分子，通过离子色谱分离，柱后衍生化-紫外检测器法测定溴酸盐。
A method was established for determination of a 7% d-cyphenothrin insecticidal aerosol using an ultrasound extraction pretreatment followed by gas chromatography (GC).
建立了7%右旋苯氰菊酯杀虫烟雾剂的超声萃取前处理方法和气相色谱分析方法。
Bio-transforming the canrenone with the enzyme system of Aspergillus ochraceus SIPI-4411; By solvent extraction and silica gel column chromatography, the compound SIPI-CANR was obtained.
应用赭曲霉SIPI-4411的羟化酶系统对化合物坎利酮进行生物转化，通过溶剂萃取、硅胶柱层析，获得转化产物SIPI-CANR化合物的纯品。
A method was developed for determining residual clenbuterol and ractopamine in animal liver (tissues) using solid phase extraction (spe) with gas chromatography-mass spectrometry (GC-MS).
建立了同时测定动物肝组织中盐酸克伦·特罗和盐酸莱克多巴胺残留量的固相萃取-气相色谱-质谱分析方法。
AIM: To identify chemical components in Shuangshen Prescription by Liquid Chromatography-Mass Spectrometry (LC-MS), and optimize the extraction by uniform design (UD).
目的：采用液相色谱质谱联用鉴定双参复方化学成分，同时应用均匀设计优化复方提取工艺。
The test method for determining all kinds of additives in aluminium rolling oil was studied by solid phase extraction and reverse-phase high performance liquid chromatography.
采用固相萃取和反相液相色谱法研究了测定铝材轧制油中各种添加剂的方法。
The volatile components were extracted from leaves of Indocalamus latifolius by simultaneous distillation and extraction, and analyzed by gas chromatography-mass spectrum (GC-MS).
采用同时蒸馏萃取装置提取箬竹叶的挥发性成分，然后经气相色谱-质谱联用技术对挥发性成分进行分离鉴定。
The volatile components were extracted from leaves of Indocalamus latifolius by simultaneous distillation and extraction, and analyzed by gas chromatography-mass spectrum (GC-MS).
采用同时蒸馏萃取装置提取箬竹叶的挥发性成分，然后经气相色谱-质谱联用技术对挥发性成分进行分离鉴定。
应用推荐