Apparatus for continuously referenced analysis of reactive components in solution

Patent · Tue Apr 21 00:00:00 EST 1981

OSTI ID:7145035

Bostick, W D; Denton, M S; Dinsmore, S R

A continuously referenced apparatus for measuring the concentration of a reactive chemical species in solution comprises in combination conduit means for introducing a sample solution, means for introducing one or more reactants into a sample solution, a reaction zone in fluid communication with said conduit means wherein a first chemical reaction occurs between said species and reactants, and a stream separator disposed within the conduit means for separating the sample solution into a sample stream and a reference stream. An enzymatic reactor is disposed in fluid communication with only the sample stream wherein a second reaction takes place between the said reactants, species, and reactor enzymes causing the consumption or production of an indicator species in just the sample stream. Measurement means such as a photometric system are disposed in communication with the sample and reference streams, and the outputs of the measurement means are compared to provide a blanked measurement of the concentration of indicator species. A peristaltic pump is provided to equalize flow through the apparatus by evacuation. The apparatus is particularly suitable for measurement of isoenzymes in body tissues or fluids. 5 figs.

• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 4263406; A
• Application Number: PPN: US 6-062375
• OSTI ID: 7145035
• Resource Relation: Patent File Date: 31 Jul 1979
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ANIMAL TISSUES
CHEMICAL ANALYSIS
BODY FLUIDS
ISOENZYMES
CALIBRATION STANDARDS
ENZYMATIC HYDROLYSIS
INDICATORS
MEASURING INSTRUMENTS
PHOTOMETRY
SAMPLE HOLDERS
BIOLOGICAL MATERIALS
BODY
CHEMICAL REACTIONS
DECOMPOSITION
HYDROLYSIS
LYSIS
MATERIALS
SOLVOLYSIS
STANDARDS
TISSUES
550200* - Biochemistry