PhenylN-(2-methylphenyl)carbamate

Three versus five micrometer chlorinated polysaccharide-based packings in chiral capillary electrochromatography: performance evaluation.

In this study, a test set of 44 nonacidic compounds was analyzed on four 3 µm chlorinated polysaccharide-based chiral stationary phases with cellulose tris (3-chloro-4-methylphenylcarbamate) (Lux Cellulose-2®; LC2), amylose tris (5-chloro-2-methylphenylcarbamate) (Lux Amylose-2®, LA2), cellulose tris (4-chloro-3-methylphenylcarbamate) (Lux Cellulose-4®; LC4) and cellulose tris (3,5-dichlorophen...

Preparation and Enantioseparation of Biselector Chiral Stationary Phases Based on Amylose and Chitin Derivatives.

Amylose derivatives chiral stationary phases (CSPs), some of which are commercially available, are well known for their powerful enantioseparation performance. However, due to the dissolution or swelling properties of amylose derivatives, this type of CSPs prepared by coating method exhibit poor solvent tolerance and stability. In order to overcome the defect as well as maintain the chiral reco...

تعیین غلظت کریپتوفیکس 2، 2، 2 در رادیوداروی [18F]FDG

غلظت کریپتوفیکس 2،2،2 در محلول‌های [18F]FDG و استانداردهای کریپتوفیکس 2،2،2 به دو روش آشکارسازی (ترکیب کریپتوفیکس 2،2،2) با بخار ید و معرف یدوپلاتینات تعیین شد. در هر دو روش، تفاوت غلظت محلول‌های کریپتوفیکس، به صورت تفاوت در شدت رنگ لکه‌های آشکار شده بر روی TLC نمایان شد. حد تشخیص کریپتوفیکس با بخار ید و معرف یدوپلاتیتات به ترتیب ppm25 و ppm2 می‌باشد. هر دو روش را می‌توان برای پذیرش ...

Cover vol.2, no.2 October 2005

6 Concluding Remarks 5.2 Incorporate Database Categorization 5 Improving the Retrieval of Relevant Documents = 2:0m 2 2 2 2 2 2 2 2 2 2 2 = 2:0m 2 2 2 2 2 2 2 2 2 2 2

In this paper, we proposed a new, highly scalable method to solve the database selection problem when the number of local databases in a metasearch engine is very large. For single-term queries, this method guarantees all desired documents to be retrieved. Experiments were conducted to show that this method is very eeective for typical short Internet queries. We also illustrated that the our da...