Urea is used in Selective Catalytic and Non Reduction (SCR SNCR) methods for NOx abatement post-combustion processes. The decomposition of urea-water solution exhaust systems leads to the formation NH3, which reducing agent. However, urea can also lead unwanted pyrolysis by-products, particularly region where temperature pressure conditions are not optimal or via wall-spray interactions. In thi...

Two substances differing in immunological behavior as well as in certain chemical properties have been isolated from soluble extracts of B. proteus X-19. Both substances appear to be polysaccharides. The first substance is precipitated from X-19 crude extracts by a relatively low percentage of alcohol and electrolytes (from one to two and a half volumes of alcohol). When purified as far as poss...

We examined the feasibility of measuring absorbance in the far ultraviolet for serum protein determination with a medium-priced, double-beam spectrophotometer. The method has been simplified by using an automatic dilutor to dilute the serum, and a flow-through cell and recorder in conjunction with the spectrophotometer. Because it is only necessary to dilute the serum and determine its absorban...

I. IN a recent paper' we showed that the colour reaction of proteids described by Adamkiewicz is obtained only when glyoxylic acid is present in the acetic acid employed. From the observations described in the paper referred to it follows that the Adamkiewicz reaction is in no sense a furfurol reaction, and therefore that there is no evidence for the current conception of its dependence upon ca...

In most clinical chemistry laboratories, mechanized procedures are essential for measurement of serum total protein and albumin. The biuret reaction is well established as the most practical approach to mechanized total protein measurements (1-4); albumin has posed a more difficult problem, with several procedures being proposed, some of which have involved salt fractionation (1-4), electrophor...

STUDY oi’ THE SERUM protein patterns in patients with chronic rheumatic diseases has already been reported in an earlier publication (1). In that work the proteins were separated by a salting-out technic and the fractions estimated by the biuret reaction. The results confirmed that hyperglobulinemia is a frequent finding in chronic rheumatic conditions, being often accompanied also, though in l...