Method for determination of aerobic bacteria and apparatus therefor

Europaisches Patentamt
® J
)
European Patent Office
Office europeen des brevets
EUROPEAN
@ Publication number: 0 4 3 5
767
A3
PATENT A P P L I C A T I O N
@ Application number : 90403763.7
© Int CI.5: C12M 1 / 3 4
@ Date of filing : 26.12.90
(§) Priority : 27.12.89 JP 340063/89
@ Date of publication of application :
03.07.91 Bulletin 91/27
@ Designated Contracting States :
CH DE FR GB LI
@ Date of deferred publication of search report :
14.08.91 Bulletin 91/33
@ Applicant : SHIMADZU CORPORATION
1, Nishinokyo-Kuwabaracho
Nakagyo-ku Kyoto-shi Kyoto 604 (JP)
(72) Inventor: Kawabata, Nariyoshi
1-2-24, Shioji, Nishinari-ku
Osaka 557 (JP)
(74) Representative : Ores, Bernard et al
Cabinet ORES 6, Avenue de Messine
F-75008 Paris (FR)
(54) Method for determination of aerobic bacteria and apparatus therefor.
(ct)
A method for determining viable cell number of aerobic bacteria which comprises placing a
water-insoluble pyridinium type resin layer (3) on the sensing portion of an oxygen-sensing electrode
(2), subjecting an aqueous bacteria-containing sample to be in contact with the water-insoluble
pyridinium type resin layer, and determining the viable cell number of aerobic bacteria in the sample on
the basis of an output of the oxygen-sensing electrode detected upon the contact of the sample with the
pyridinium type resin layer, and an apparatus suitable for effecting the above method.
Jouve, 18, rue Saint-Denis, 75001 PARIS
EP 0 435 767 A3
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EUROPEAN SEARCH R E P O R T
EP
DOCUMENTS CONSIDERED TO BE RELEVANT
Citation of document with indication, where appropriate,
Relevant
iMegory
of relevant passages
to dawn
PATENT ABSTRACTS OF JAPAN
1-9
vol. 6, no. 19 (C-90)(897) 03 February 198Z,
& JP-A-56 140898 ( KYOWA HAKKO KOGYO K. K. ) 04
November 1981,
* the whole document *
r ,T
EP-A- 360276 (KAO CORPORATION)
* claims *
1-9
US-A-4517291 (JAMES L. SEAGO)
* abstract; claims *
1-2
PATENT ABSTRACTS OF JAPAN
vol. 13, no. 419 (C-637)(3767) 18 September
1989,
& JP-A-1 157373 (MITSUBISHI HEAVY IND LTD) 20
June 1989,
* the whole document *
1-2
US-A-4614716 (GILSON H. ROHRBACK ET AL.)
* claims ; figures *
1. 6
CLASSIFICATION OF THE
APPLICATION flnt. CI.5 )
C12M1/34
C12Q1/06
TECHNICAL FIELDS
SEARCHED (Int. CI.5 )
C12M
C12Q
The preheat search report has been drawn up for alt clnitns
imr or oiMph-ltan orIhesetrck
THE HAGUE
ZA MAY 1991
uieuu«v ur li ir.u uui_umm\ is
X: particularly relevant h*liken alone
Y: particularly relevant if combined nllh another
document of ti e same category
A: technological tiackgrouad
O: noa-written disclosure
P : Intermediate document
90 40 3763
ExOTiner
BEVAN S. R.
T : theory or principle underlying the Invention
E : earlier patent document, hut published on, or
after the filing dale
0 : document died in the application
I. : docimcnl cited for other reasons
ft : member of thi- same patent famllv, corresponding
document