Testing system for chemical substances or substance mixtures

US6613542B2 · kind B2 · utility

Assignee

• Syngenta Crop Protection AG · CH

Inventors

• Jorg Mentzen · Geita, TZ
• Helmut Kessmann · Lörrach, DE
• Harald Danigel · Basel, CH
• Gerhard Klokow · Pratteln, CH
• Peter Obergfell · Glückstadt, DE

Key dates

• Filing date: Jun 14, 2001
• Grant date: Sep 2, 2003
• Expiry date: Jun 22, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/2575
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a testing system for chemical substances or substance mixtures, especially for potential plant protection compositions, the chemical substance to be tested or the substance mixture to be tested is applied to a test specimen, especially to plants or parts of plants. When a predetermined period of time has elapsed, the test specimen is examined for the activity of the substance or substance mixture. For this purpose, first of all a type of test specimen is selected from a stock of test specimens, and the substances to be tested are selected from a stock of substances to be tested. The selected type of test specimen and the selected substances are identified (BC1, BC2) by means of a machine-readable code and those codes are supplied to a memory unit (12). The test specimens are placed in readiness in a carrier plate (30), for which purpose each test specimen or a section (BR) of test specimen is deposited in a well (300) that is provided in the carrier plate (30) and that is partly filled with a nutrient solution (301). Then a spraying device (150, 151) is inserted into the well (300) of the carrier plate (30) and sprays the test specimen deposited therein with the selected substan…