MICRODETERMINATION OF CHLORIDE IN BIOLOGICAL FLUIDS, WITH SOLID SILVER IODATE

Microdetermination of Chloride in Biological Fluids, with Solid Silver Iodate

was outlined in detail, with gasometric measurement of the iodate resulting from the reaction. In this paper titrimetric measurement of the iodate is described. Titrimetric measurement of the iodate is directly applicable to the supernatant fluid in the AgI08 precipitation of chloride from salt solutions, urine, serum, and protein-free jiltrate of serum and of whole blood.’ For the titrimetric ...

Microdetermination of Chloride in Blood Plasma and Cells, by Spectrophotometric Analysis Using Solid Silver Iodate.

As an extension of the silver iodate method of Sendroy,a convenient, reproducible, and sensitive method for analysis of chloride in 0.02-mi. samples of serum, whole blood, or red cells isdescribed. The procedureinvolves (1) preparation of a proteinfree filtrate of the sample, (2) Ag103 reaction with the filtrate, and (3) spectrophotometric analysisof iodineas the quantitative measureof the amou...

Photoelectric Microdetermination of Chloride in Biological Fluids, and of Iodate and Iodine in Protein-free Solutions

The Microdetermination of Biological Copper with Oxalyldihydrazide.

Methods are described for the determination of microgram quantities of biological copper in aqueous medium as the intensely coloured oxalyldihydrazide-acetaldehyde complex (molar extinction coefficient 23,000 to 23,500). The methods are applicable on a routine basis to any biological material, in particular to serum, urine, or tissues, such as liver, brain, or kidney. In the case of urine a sim...

Nomogram for correction of low urine chloride values determined by the silver iodate reaction.

Sendroy (l-3) pointed out in his original papers on the determination of chloride by the reaction, AgI03 + Cl% AgCl + 103, that the 103formed reduces the AgI03 solubility to a negligible value in analyses of plasma, and of urines except those with unusually little chloride. Sendroy ((1) Fig. 2) gave a curve of corrections for AgI03 solubility at 20-25”, for use in. analyses of low chloride urin...