公开(公告)号：US3686091A

公开(公告)日：1972-08-22

申请号：US3686091D

申请日：1970-10-02

Applicant: BECKMAN INSTRUMENTS INC

Inventor： SAWA KENNETH B ,  NETI RADHAKRISHNA MURTY

IPC: G01N27/333 ,  G01N27/416 ,  G01N27/30 ,  G01N27/40

CPC classification number: G01N27/4166 ,  G01N27/3335

Abstract: THE DISCLOSURE RELATES TO AN IMPROVEMENT IN AN ELECTROCHEMICAL CELL FOR USE IN ION POTENTIAL MEASUREMENTS OF SOLUTIONS THE CELL CONTAINS A SENSING ELECTRODE, A REFERENCE ELECTRODE, AND AN EXTERNAL ELECTROLYTE COMPRISING THE SOLUTION TO BE TESTED. AT LEAST ONE ELECTRODE COMPRISES AN INTERNAL HALF CELLS SUPPORTED IN A CONTAINER OF NONCONDUCTIVE MATERIAL CONTAINING A SALT SOLTUION, AN INTERNAL ELECTROLYTE AND A LIQUID JUNCTION STRUCTURE OF AN ION PERMEABLE MATERIAL. THE IMPROVEMENT COMPRISES A SURFACTANT ADDED TO THE CELL SO THAT THE CONTACT ANGLE BETWEEN THE SOLUTION AND THE LIQUID JUNCTION STRUCTURE IS LESS THAN ABOUT 90*. AS A RESULT THE LIQUID JUNCTION STRUCTURE IS MADE MORE PERMEBLE TO WATER MOLECULES. AN IMPROVED ELECTROCHEMICAL ELECTRODE FOR USE IN ION POTENIAL MEASUREMENTS OF SOLUTIONS IS ALSO DISCLOSED.

公开(公告)号：US3881869A

公开(公告)日：1975-05-06

申请号：US37548173

申请日：1973-07-02

Applicant: BECKMAN INSTRUMENTS INC

Inventor： NETI RADHAKRISHNA MURTY ,  REEVES GEORGE I

IPC: G01N21/76 ,  G01N31/00 ,  G01N31/10

CPC classification number: G01N21/766 ,  G01N31/00 ,  Y10T436/206664

Abstract: The concentration of ozone in a gas sample, such as ambient air, can be quantitatively measured by contacting the gas sample with an organic polymer having a backbone chain consisting of carbon atoms to produce a chemiluminescent reaction and measuring the intensity of light emitted by the reaction. The polymer undergoes no apparent chemical change, indicating that it functions as a catalyst in the chemiluminescent reaction.

Abstract translation: 可以通过使气体样品与具有由碳原子构成的主链的有机聚合物接触以产生化学发光反应并测量由反应发射的光的强度来定量测量气体样品中的臭氧浓度，例如环境空气， 。 聚合物不发生明显的化学变化，表明其在化学发光反应中起催化剂的作用。