THE REACTION OF SULPHURYL CHLORIDE WITH REDUCING SUGARS: PART I

The Determination of Reducing Sugars

In the course of an investigation, still in progress, of the physiological activity of a group of soil organisms, it became necessary to determine the quantity of dextrose in a series of solutions. It was desirable to have a method as accurate as the Fehling gravimetric one but which would yield results about as quickly as by direct titration. The reducing sugar present in the 150 cc. of each o...

The Science of Sugars, Part I A Closer Look at Sugars

As carbohydrates, sugars play many important roles in our food. They are a source of calories and, in addition to sweetening, perform many essential technical functions both in processed foods and in foods prepared in the home. However, the complex terminology used to describe sugars can be confusing. Communications regarding the definitions of various sugars, the role of sugars in our food and...

The antigen-antibody reaction. I. The influence of sodium chloride concentration on the quantitative precipitin reaction.

Psychometric properties of the UCLA PTSD reaction index: part I.

This article presents psychometric characteristics of the UCLA PTSD Reaction Index for DSM IV (PTSD-RI) derived from a large sample of children and adolescents (N = 6,291) evaluated at National Child Traumatic Stress Network centers. Overall mean total PTSD-RI score for girls was significantly higher as compared with boys. Age-related differences were found in that overall mean total PTSD-RI sc...

The direct colorimetric estimation of reducing sugars and other reducing substances with tetrazolium salts.

Since Kuhn & Jerchel (1941) showed that tetrazolium salts were reduced by bacteria, yeasts and germinating seeds, 2:3:5-triphenyltetrazolium chloride or bromide has come into prominence as a viability testing reagent (Cottrell, 1947) and for vital staining (Mattson, Jensen & Dutcher, 1947). Its specific advantages for this purpose and for the purposes which follow lie in its Eo value of -008 V....