Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for analysis of anions










Image Number 11 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
PMI feedback with codebook interpolation
Electronic device including predicted frequency error estimation of a voltage controlled oscillator and related methods
Integrated testing circuitry for high-frequency receiver integrated circuits
Shoe
Co-map communication operator
Controller for soldering iron
Method and apparatus for establishing a media clip
  Randomly Featured Patents
Filter and forming system
Methods for preparing a formed cellular plastic material pattern employed in metal casting
Method of driving a program operation in a nonvolatile semiconductor memory device
Flexible foil finned heatsink structure and method of making same
Gas-liquid contacting tray
Direct fuel injection stratified charge engine
Method for measuring orthogonality having a third interferometer which is not orthogonal
Method of monitoring a chain pulley block and chain pulley block apparatus
Silver halide color photographic light-sensitive material
Dialogic style RF guidance system for a visually handicapped person and its control method