Optimal blocking agent

Comparing the results of the modification of PA-6 end groups with either succinic anhydride, 1,2-epoxybutane, or diketene and the diketene acetone adduct, it can be concluded that the optimal blocking agent must be small and must exhibit an intermediate reactivity toward the end groups in order to allow extensive penetration into the core of the granules before the blocking reaction starts to hinder further penetration. 

The use of antibiotic-based CSPs has been reported in capillary electrochromatography (CEC) for chiral resolution [60]. Teicoplanin CSP covalently bonded to silica gel was used to resolve the enantiomers of tryptophan and dinitrobenzoyl leucine by CEC [61]. Good levels of enantioselectivity were obtained with optimized separations. Vancomycin covalently bonded to silica gel was also evaluated in CEC for the chiral resolution of thalidomide and jS-adrenergic blocking agents under all the three mobile phase modes. The... 

Bovine lacto transfer technique optimizer (a blocking agent)... 

The hybridization buffer, blocking agent, and detection reagents are available in an optimized kit form, including the reagents for labeling probes directly with HRP. (ECL direct nucleic acid labeling and detection system, RPN 3000, RPN 3001, RPN 3005, Amersham International, Amersham, UK). 

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