THE EXCRETION OF INORGANIC SULPHATES

Abstract

Among many estimations of blood concentration and rate of excretion of various substances in the urine, relatively few have been concerned with inorganic sulphates. These, regarded as waste products highly con- centrated in the urine, are usually classed with creatinine and many foreign bodies as "no-threshold" substances. Cushny (1926), however, cautioned that "sulphates cannot yet be assigned a definite position as it is uncertain whether they should be placed along with phosphates (low threshold) or among the no-threshold bodies."