Registered Office: 17 Claygate Avenue, Harpenden, Herts, AL5 2HE England; Registered in England No: 984076.
CIPAC
COLLABORATIVE INTERNATIONAL PESTICIDES ANALYTICAL COUNCIL LIMITED
Commission Internationale des Méthodes d'Analyse des Pesticides (CIMAP)
Internet: http://www.cipac.org
CIPAC INFORMATION SHEET No. 311
Your Ref:
Our Ref: LB
September 2017
745 prothioconazole
Dear Colleague,
This is to inform you that Bayer AG, Crop Science Division, is planning to organise a full scale collaborative trial on a
method for prothioconazole.
Principle:
The content of prothioconazole in formulations is determined by reversed phase high performance liquid
chromatography on a 50 x 4.6 mm (i.d.), 3.5 μm particle size C18 column (Agilent Zorbax Extend C18, or equivalent
with the same selectivity), using gradient elution with mobile phase composed of water (acidified with phosphoric acid)
/acetonitrile-THF-methanol mixture and UV detection at 254 nm. Quantitation is done by external standardization.
Scope: It is intended to analyse five samples consisting of one technical material (TC), one emulsifiable concentrate
(EC), two flowable concentrates for seed treatment (FS) and one suspension concentrate (SC). Samples and
prothioconazole analytical standard will be supplied.
Time schedule: The collaborative trial is intended to be carried out between November 2017- March 2018. Those who
wish to participate should contact the organiser by 31 October 2017. The results should be reported by the end of March
2018.
Contact:
Mr. Friedhelm SCHULZ
Bayer AG, Crop Science Division
Formulation Analysis Laboratory 1
Tel.: +49 217 338 47 62
Alfred-Nobel-Str. 50
Mob.:+49 175 301 47 62
D-40789 Monheim am Rhein
Fax.: +49 217 338 54 63
Germany
e-mail:
friedhelm.schulz@bayer.com
Yours sincerely
L. Bura
Secretary
SECRETARY:
Mr László Bura
European Food Safety Authority
Via Carlo Magno 1A – I-43126 Parma, Italy
Telephone: +39 0521 036 827
Telefax:
+39 0521 036 0827
E-Mail:
laszlo.bura@efsa.europa.eu
ASSISTANT SECRETARY:
Theo de Rijk
RIKILT-Institute of Food Safety
P.O. Box 230
6700 AE Wageningen, The Netherlands
Telephone: +31 317480427
Fax:
+31 317417717
E-Mail:
theo.derijk@wur.nl
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CHAIRMAN:
Dr Ralf Hänel
Federal Office of Consumer Protection and Food Safety
(BVL)
Messeweg 11/12, D-38104 Braunschweig, Germany
Telephone: +49 531 299 3506
Telefax:
+49 531 299 3002
E-Mail:
ralf.haenel@bvl.bund.de
TREASURER:
Mr Brian E. Hocken
17 Claygate Avenue
Harpenden, Herts, AL5 2HE, England
Telephone: +44 1582 764277
Telefax:
+44 1582 461625
E-Mail:
brianehocken@gmail.com