Measuring system for optically determining concentration of turbid liquid samples

US6803594B2 · kind B2 · utility

Assignee

• Eppendorf AG · DE

Inventors

• Reiner Spolaczyk · Hamburg, DE
• Kurt Harnack · Norderstedt, DE

Key dates

• Filing date: Aug 22, 2002
• Grant date: Oct 12, 2004
• Expiry date: Aug 22, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N21/8507
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Optical measuring system for determining the concentration, particularly of turbid liquid samples, comprising a measuring volume for taking up the liquid samples to be measured, a plurality of several photometric channels, each comprising a light source and a light sensor on opposite sides of the sample volume aligned on a common optical axis, the optical axes thereof being disposed under different azimutal angles respective to the sample volume, and an analyzing device which evaluates the concentration of the liquid samples to be measured according to the data provided by the light sensors belonging to a plurality of different photometric channels.