Chemistry: analytical and immunological testing – Metal or metal containing – Li – na – k – rb – cs – fr – be – mg – ca – sr – ba – ra
Patent
1991-05-02
1993-05-04
Warden, Robert J.
Chemistry: analytical and immunological testing
Metal or metal containing
Li, na, k, rb, cs, fr, be, mg, ca, sr, ba, ra
208207, 208236, 208237, 422 8202, 423228, 423229, 436 73, 436109, 436120, 436129, 436146, 436150, G01N 2704
Patent
active
052081648
ABSTRACT:
(a) An alkanolamine solution containing anions, a conductance probe connected through a meter to a recorder and a stirrer are provided in a container, (b) the solution is stirred at a constant rate and metering and recording of the conductance of the alkanolamine solution are initiated, (c) an anion exchange resin in the OH.sup.- form is then introduced to the container in an amount in excess of that required to exchange all anions from the amine solution, (d) the conductance of the alkanolamine solution is monitored until steady state is reached, and (e) the total anion content and the sodium content (if present) are determined from the conductance trace.
The process and apparatus may be used to display conductance changes with time and rate of conductance changes with time in order to determine which anions are present in the alkanolamine solution, whether or not sodium is present and the magnitude of conductance values at various time intervals.
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Conoco Inc.
McMahon Timothy M.
Warden Robert J.
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