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Latest News

Method update: Analysis of Quaternary Ammonium Herbicides in Water

Feb 3, 2022

ALS Environmental is committed to technical and methodological advancements and continuous improvement in our analytical services. Over recent months the ALS Water division has been undertaking a review of a range of Herbicides in water analysis with a view to providing our clients with more robust and reliable analytical data.

We are delighted to inform you that we have revalidated our UKAS accredited method to DWTS for testing Diquat (alongside Mepiquat and Chlormequat) by LCMS-MS in surface, ground and treated drinking water matrices using SPE extraction. This new method will replace the current WPC69 method.

Parameter

Old det code

Old LoQ (ug/l)

New det code

New LoQ (ug/l)

Chlormequat

ANQ

0.003

AS8

0.002

Mepiquat

ANR

0.004

AS9

0.003

Diquat

-

-

AS6

0.014

All samples that are registered between now and your project being updated to the new method will continue to be tested using the WPC69 method.

There are no changes to sample container for this testing.

Click here to download the technical data sheet. 

If you would like more information please do not hesitate to contact the Client Services Team who will be happy to help.

Phone - 02476 42 12 13

Email - info.ukenviro@alsglobal.com

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