EPTIS – Acidic herbicides and o-phenylphenol (both with hydrolysis) in orange (P2428-RT) (EPTIS-ID 1095678)

Acidic herbicides and o-phenylphenol (both with hydrolysis) in orange (P2428-RT)

EPTIS Ringversuch Nr. 1095678 | Letze Änderung 2023-11-08 | URL: https://www.eptis.bam.de/pts1095678 https://www.eptis.bam.de/pts1095678

Name des Anbieters

Name des Anbieters

PROOF-ACS GmbH

Ansässig in

Germany

Sprache(n)

English, German

Anmerkungen

Attention: It is essential to apply a hydrolysis step for this ring test. An analysis of the esters and the free acids only results in an underestimation of the spiked levels! The test samples MUST be analysed twice - with and without hydrolysis. The residue definitions of acidic herbicides according to regulation (EC) No. 396/2005 include the esters, salts and conjugates of the acidic herbicides. The conjugates can contribute significantly to the total amount of the respective herbicides determined in routine samples. An alkaline hydrolysis step is applied to quantify residues of the conjugates in routine samples. The residue definition of 2-phenylphenol (sum of 2-phenylphenol and its conjugates, expressed as 2-phenylphenol) includes the conjugates as well. Please be prepared to analyse the conjugates of 2-phenylphenol as well. P2428-RT is designed to cover all aspects of the analysis of acidic herbicides and 2-phenylphenol, including the hydrolysis step in accordance with the residue definition. For that purpose the test material is spiked with selection of conjugates of acidic herbicides and 2-phenylphenol, commercially available esters of acidic herbicides, and free acids of acidic herbicides. In order to ensure that the results are unambiguously, either the conjugate or the ester or the free acid is spiked for each of the selected herbicide. In case of one of the herbicides, the conjugate, an ester and the free acid is spiked to simulate the residue situation in routine samples. Acidic herbicides within the scope of the test are summarised below (see parameters). The participants are asked to report the results with and without hydrolysis. The results after alkaline hydrolysis (sum of conjugates, esters and free acids) are considered for evaluation of the trueness of results. Please find more information on our website www.proof-acs.de

Klassifizierung

Produktgruppen

Food and drink

Prüfgebiete

Analytical chemistry

Technische Einzelheiten

Prüfobjekt	Prüfeigenschaft	Prüfmethode
orange purée	4-CPA (free acid)	-
	2,4-D (free acid)	-
	2,4-DB (free acid)	-
	2,4-Dichlorprop (free acid)	-
	2,4,5-T (free acid)	-
	2,4,5-TP (free acid)	-
	Clopyralid (free acid)	-
	Dicamba (free acid)	-
	Fenoxaprop (free acid)	-
	Fluazifop (free acid)	-
	fluroxypyr (free acid)	-
	Haloxyfop (free acid)	-
	MCPA (free acid)	-
	MCPB (free acid)	-
	Triclopyr (free acid)	-
	4-CPC sum (after hydrolysis)	-
	2,4-D sum (after hydrolysis)	-
	2,4-DB sum (after hydrolysis)	-
	2,4-Dichlorprop sum (after hydrolysis)	-
	2,4,5-T sum (after hydrolysis)	-
	2,4,5-TP sum (after hydrolysis)	-
	Fenoxyprop sum (after hydrolysis)	-
	Fluazifop sum (after hydrolysis)	-
	Fluroxypyr sum (after hydrolysis)	-
	Haloxyfop sum (after hydrolysis)	-
	MCPA sum (after hydrolysis)	-
	MCPB sum (after hydrolysis)	-
	Triclopyr sum (after hydrolysis)	-
	Common esters of acidic herbicides mentioned above	-
	o-Phenylphenol with conjugates	-

Ringversuchsziele

Zielgruppe des Ringversuchs

Relevante Rechtsvorschriften oder Normen

Weitere Ziele

Teilnehmerzahl

10-30

Anbieter unabhängig überprüft (akkreditiert, benannt, anerkannt)

Die Durchführung des Ringversuchs ist in Auftrag gegeben durch

Kosten

Teilnahmegebühr

850 €

Regelmässig durchgeführt

Ja (2 rounds per year)

Der Ringversuch wird durchgeführt seit

2019

Kontaktdaten des Anbieters

Anbieter

Kontaktperson

PROOF-ACS GmbH
Gottlieb-Daimler-Str. 1
28237 Bremen
Germany

Telefon: +49 (0)421 388 928 50
Fax:
Web: http://www.proof-acs.de

Dr. Birgit Schindler
Telefon: +49 (0)421 388 928 50
Fax:
E-Mail: proof@proof-acs.de

Haben Sie einen Fehler entdeckt? Bitte wenden Sie sich an den zuständigen EPTIS Koordinator für Germany, Mr Johannes van de Kreeke.

Acidic herbicides and o-phenylphenol (both with hydrolysis) in orange (P2428-RT) EPTIS Ringversuch Nr. 1095678 | Letze Änderung 2023-11-08 | URL: https://www.eptis.bam.de/pts1095678 https://www.eptis.bam.de/pts1095678

Acidic herbicides and o-phenylphenol (both with hydrolysis) in orange (P2428-RT)

EPTIS Ringversuch Nr. 1095678 | Letze Änderung 2023-11-08 | URL: https://www.eptis.bam.de/pts1095678 https://www.eptis.bam.de/pts1095678