Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Chemiluminescent
Patent
1988-04-08
1993-06-29
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Chemiluminescent
422 8205, 356246, 250361C, G01N 2176
Patent
active
052232182
ABSTRACT:
An instrument for quantitative analysis includes two shutters, one of which prevents light from being introduced into a black box housing a cell holder from the outside through a port in which a cell may be placed in and taken out the black box, and the other of which prevents light from impinging on a photomultiplier tube which is in communication with the black box. The shutters are controlled by a control unit so that one of the shutters opens when the other closes. The instrument also includes detectors which detect whether or not the cell holder and the cell are disposed at predetermined positions, respectively. The detectors output signals to the control unit. The control unit controls an automatic pipetting device to restrict a sample from being introduced into the cell when both the cell holder and the cell are not disposed at the predetermined position.
REFERENCES:
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patent: 4319842 (1982-03-01), Priarone et al.
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patent: 4755055 (1988-07-01), Johnson et al.
Use of the Luminescent Bacterial System for the Rapid Assessment of Aquatic Toxicity by A. A. Bulich and D. L. Isenberg, 358 ISA Transactions, vol. 20, (1981) No. 1, Research Triangle Park, N.C., USA pp. 29-33.
Fukuoka Masayoshi
Matsuyuki Akira
Housel James C.
Kabushiki Kaisha Meidensha
Snay Jeffrey R.
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