B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
150/19, 402/518
B01D 15/08 (2006.01) C02F 1/28 (2006.01) C02F 5/08 (2006.01) G01N 21/00 (2006.01) G01N 31/10 (2006.01) G01N 33/18 (2006.01)
Patent
CA 1238146
- i - PATENT APPLICATION OF Alan Plichael Rothman for MONITORING METHOD FOR POLYACRYLIC ACIDS lN AQUEOUS SYSTEMS Doc . No . 83-29 : MSA:JD ABSTRACT OF THE DISCLOSURE A quantitative method useful for field monitoring low concentratlons of water soluble, polyacrylic acids in aqueous systems containing polyacrylic acids and other soluble ionic materials, such as ionic salts and phosphonates, is provided. The method involves adjusting the ph of the aqueous system to suppress polyacrylic acid ionization followed by selective adsorption and concentration of the polyacrylic acids on a suitable adsorbent. Concentrated polyacrylic acids are then desorbed from the adsorbent and the concentration of the polyacrylic acids in the aqueous system is determined by conventional techniques.
458403
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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