Synthetic and Analytical Studies on Color Reagents. VI. Behavior of Anthraquinone Reagents for Boric Acid.

Silylating Agents Derivatization Reagents Protecting-Group Reagents Organosilicon Compounds Analytical Applications Synthetic Applications

NOVEL REAGENTS FOR CREATINE KINASE

The purpose of this investigation was to develop a simple colorimetric method for creatine kinase (CK). The new method is based on the reaction of creatine, formed enzymatically from creatine phosphate and ADP, with different glyoxal compounds. Hydrated glyoxals, such as para-nitrophenyl, 2-thiophene, 4- biphenyl, 4, 4' -biphenyl,α-naphthyl, β-naphthyl, para-chlorophenyl, and styryl were...

Reagents for HIV/SIV Vaccine Studies

Since last year’s edition of this section, a few new attenuated SIVs and SHIVs have been added to the collection. We have attempted to include all strains represented in the literature. If there are any that are not included, we would very much appreciate hearing about them; we will make sure they will be added in the next edition of the Compendium. All isolates have a separate color code, so t...

New Reagents for the Spectrophotometric Determination of Vanadium in Alloys, Synthetic and Pharmaceutical Samples 4.1 Introduction 4.2 Analytical Chemistry 4.3 Apparatus 4.4 Reagents and Solutions

Simple spectrophotometric methods for quantification of modafinil using 1,2-naphthoquinone-4-sulphonate and 2,4-dinitrophenol as analytical reagents

Two simple visible spectrophotometric methods are developed and validated for the quantification of modafinil using 1,2-naphthoquinone-4-sulphonic acid (NQS method) and 2,4-dinitrophenol (DNP method) as analytical reagents. The NQS method involves the reaction of modafinil with 1,2-naphthoquinone-4-sulphonate in alkaline medium at room conditions to form a yellow colored product exhibiting maxi...