US EPA

1624767 

Journal Article 

SEPARATION OF POLYPHOSPHATES BY PAPER CHROMATOGRAPHY WITH A NEW SOLVENT 

Woodis, TC; Trimm, JR, JR; Duncan, RD 

1973 

STUDY OF THE EFFECT OF SOLVENT PH ON CHROMATOGRAPHIC SEPARATION OF POLYPHOSPHATES LED TO DEVELOPMENT OF A NEW SOLVENT WITH A PH OF 4. THE SOLVENT CONSISTS OF 50 G OF MONOCHLOROACETIC ACID, 250 ML OF ISOPROPANOL, 350 ML OF ACETONE, 300 ML OF WATER, 100 ML OF 25 PERCENT EDTA SOLUTION, AND 15 ML OF CONCENTRATED AMMONIA LIQUOR. THE SOLVENT DID NOT GIVE A BLUE FRONT ON CHROMATOGRAMS OF SODIUM TRIPOLYPHOSPHATE AND HEXAMMONIUM TETRAPOLYPHOSPHATE AS DID EBEL'S SOLVENT. IN ADDITION R SUB F VALUES WERE HIGHER AND MORE CONVENIENTLY DISTRIBUTED. THE NEW SOLVENT HAS PROVED TO BE SUPERIOR TO EBEL'S SOLVENT SINCE MORE SPECIES CAN BE DETERMINED, HYDROLYSIS IS SIGNIFICANTLY REDUCED, AND SEPARATIONS CAN BE CARRIED OUT ON THINNER PAPER AND AT ROOM TEMPERATURE. (LITTLE-BATTELLE) 

*SOLVENTS; *PAPER CHROMATOGRAPHY; TEMPERATURE; HEXAMMONIUM TETRAPOLYPHOSPHATE; SODIUM TRIPOLYPHOSPHATE; *PHOSPHATES; *SEPARATION TECHNIQUES; HYDROGEN ION CONCENTRATION; *POLLUTANT IDENTIFICATION; OCTAPOLYPHOSPHATES; TETRAPOLYPHOSPHATES; HEXAPOLYPHOSPHATES; HEPTAPOLYPHOSPHATES; PYROPHOSPHATES; ORTHOPHOSPHATES; PENTAPOLYPHOSPHATES; TRIPOLYPHOSPHATES