Resources Contact Us Home
Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range

Image Number 3 for United States Patent #7993604.

An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.

  Recently Added Patents
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
System and method for reducing the risks involved in trading multiple spread trading strategies
Fixing apparatus
Image processing device and information storage medium including motion vector information calculation
Front end for RF transmitting-receiving systems with implicit directional control and time-multiplexing method in submicron technology
VEGF-specific capture agents, compositions, and methods of using and making
Apparatus and method for multiplying frequency of a clock signal
  Randomly Featured Patents
Hydraulic actuated control valve
Polymer compound, precursor for the same and thin film-forming method using the same polymer precursor
Cam mechanism for circular knitting machine and cam timing setting method
Product quantity indicator tab
Hub assembly
Method for eluting antimony adsorbed on chelating resin
Inexpensive and easy to use mechanically operated bite force gauge
Cylinder rupture vessel with cylinder rotation mechanism and rupture mechanism
Ink-jet head, and method for manufacturing the same
Effective MIM fabrication method and apparatus to avoid breakdown and leakage on damascene copper process