Resources Contact Us Home
Apparatus for analysis of anions

Image Number 5 for United States Patent #4533518.

Method and apparatus for analysis, by ion chromatography, of anions, in a sample solution, wherein accurate analysis of anions in the sample solution is obtained by passing carbonic acid, through a prescribed membrane, into the sample solution, thereby completely eliminating or sharply lessening the so-called water dip effect. The method and apparatus are further directed to enabling anions in the sample solution to be accurately analyzed by passing prescribed cations, through a prescribed membrane, into the sample solution, thereby depriving the sample solution of interfering anions otherwise abundantly present therein.

  Recently Added Patents
Method for producing a sulfonated polyarylether block copolymer
Apparatus for tuning a musical instrument, and a related instrument
Methods of producing the membranes and the uses of membranes as battery separator films
Message processing method and apparatus based on the SIP protocol and an IP communication system
Rose plant named `ESM R057`
Dye-sensitized solar cell, dye-sensitized solar cell module, and coating liquid for forming electrolyte layer
Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network
  Randomly Featured Patents
Pressure equalizer
Light emitting devices having a reflective bond pad and methods of fabricating light emitting devices having reflective bond pads
Methods for fabricating semiconductor devices minimizing under-oxide regrowth
Coated conductive carriers
Controller for reversible air conditioning and heat pump HVAC system for electric vehicles
System and method for ranking search results based on tracked user preferences
Hydraulic pressure control valve
Apparatus and method of performing error recovering process in asymmetric clustering file system
Method of repairing probe pads
Press belt and shoe press roll