Photometric analysis apparatus for a liquid

US4676952A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Hermann Edelmann · Tutzing, DE
• Manfred Pasch · Tutzing, DE
• Karlheinz Mann · Weilheim, DE
• Stephan Sattler · Starnberg, DE
• Hans-Peter Haar · Wiesloch, DE

Key dates

• Filing date: Apr 24, 1984
• Grant date: Jun 30, 1987
• Expiry date: Apr 24, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/114165
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A photometric liquid analysis apparatus of the centrifugal analysis type uses insert elements having an elongated body, an optical measurement chamber near one end of the elongated body and a positioning trough on one side of the elongated body. The photometric liquid analysis apparatus has a rotor for rotating the insert elements to photometric means for photometric analysis of a liquid then in the optical measurement chamber of the insert element during the rotation of the rotor. The rotor has radial guiding chambers, each having an opening at an end thereof adjacent the outer periphery of the rotor and a configuration for receiving one of the insert elements with its positioning trough on a lateral side thereof and adjacent the outer periphery of the rotor. A fixed element on the rotor is on a lateral side of each guiding chamber circumferentially spaced from the positioning trough of the insert element therein when the insert element is initially received in the guiding chamber and an adjustment device moves the received insert element circumferentially into a second position engaging the fixed element with the positioning trough thereof.