查询词典 chromatography

Save a small portion (5 drops) of your original essential oil sample and of the distilled limonene and carvone fractions for Gas Chromatography and Refractive Indexes measurements.

留下一小部份(5滴)的原精油样品和蒸馏过的柠檬烯和香芹酮馏份，作为气相色层分析和折光率的测定用。

DAY 1: Distillation and Gas Chromatography: WORK in PAIRS. Split evently the limonene and carvone fractions for the derivatization step.

第一天：蒸馏和气相色层分析：以对为单位工作，一组分一个柠檬烯一组分一个香芹酮馏份作为衍生化步骤

The polymerization course of sodium caseinate by MTGase was analyzed by SDS-PAGE and gel-filtration chromatography, it indicated that sodium caseinate could be polymerized easily by MTGase, and biopolymers more than 163. 3kDa were formed.

采用SDS-PAGE和凝胶过滤色谱分析了MTGase对酪蛋白酸钠的聚合过程，结果显表明：MTGase较易催化酪蛋白酸钠聚合，而且形成分子量至少大于163.3kDa的聚合物。

The allergens with molecular mass of 21kD and 11kD were identified by Western-blotting. The 21kD and 11kD allergens of cashew nut were purified by ion exchange chromatography.

结果 腰果粗提液SDS-PAGE显示有10条蛋白条带，Western-blotting显示对腰果过敏患者的阳性混合血清能与其中2个蛋白条带起反应，分子量分别为21kD和11kD。

Methods The total protein of the cashew nut was isolated by SDS-PAGE. The allergens of cashew nut were identified by Western-blotting. To purify the allergens, ion exchange chromatography was employed. Results There were ten protein bands visible on the SDS-PAGE gel.

通过十二烷基硫酸钠-聚丙烯酰胺凝胶电泳电泳分离腰果的蛋白质组份，采用免疫印迹(Western-blotting)方法鉴定过敏原，通过离子交换层析对腰果主要过敏原进行初步纯化。

Methods: Sample preparation with acetic ether-QuEChERS, and then five kinds of pesticide residues in celery cabbage were determined by gas chromatography with electron detector.

采用乙酸乙酯－QuEChERS法进行样品前处理，结合气相色谱－电子捕获检测器对大白菜中5种常见拟除虫菊酯农药残留进行检测分析。

In this work, three certified milk powder materials with different PCDD/Fs levels were Soxhlet-extracted and then cleaned up using Power-Prep system automatically. PCDD/Fs and planar PCBs were determined using isotope dilution and high resolution gas chromatography-high resolution mass spectrometry.

自动样品前处理在乳品中二恶英和共平面多氯联苯同时测定中的应用张磊，李敬光，吴永宁，赵云峰(中国疾病预防控制中心营养与食品安全所，北京 100050)摘要：采用索氏提取及自动净化处理系统对乳品进行提取和净化，在高分辨气相色谱-高分辨双聚焦质谱仪上进行定性和定量检测。

We researched on relationship of ion characteristic and retention value with retention value equation of ion chromatography .

本文通过离子色谱的保留值方程研究了离子的特征参数与色谱保留值之间的关系。

The expressed product was purified by metal chelate chromatography, identified by Western blot and determined for activity.

表达产物经金属螯合层析柱纯化，并进行Western blot 分析及活性检测。

A new type of separation and purification method for isolating puerarin was developed using chelate complex chromatography.

中文内容：摘要：建立了采用配位色谱柱从葛根素浸膏中分离纯化葛根素的方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。