Glyphosate (N-phosphonomethyl glycine) is a non-selective, post-emergence herbicide used widely around the world for weed and vegetation control. This is sold in Australia under brand names including:
Glyphosate comes in the free acid form and as various salts:
The principal degradation product of glyphosate is aminomethylphosphonic acid (AMPA).
Glufosinate (DL-phosphinothricin) is a herbicide with a similar structure to glyphosate and belongs to the same chemical class.
Australian regulators have set human health-based limits and environmental guidelines for glyphosate:
The National Measurement Institute (NMI) has developed a National Association of Testing Authorities (NATA) accredited sensitive and highly selective method (NR53). This method determines glyphosate, AMPA and glufosinate in water (drinking, recycled, ground and catchment), soil and foliage.
We recommend analysing and reporting on AMPA and glyphosate together for drinking water and environmental samples.
|Herbicide||Limit of reporting for water (mg/L)||Limit of reporting for soil (mg/kg)||Limit of reporting for foliage (mg/kg)|
When analysing samples, we:
The separation is rapid on sub-2 micron particle size columns. We detect this using state-of-the-art MS/MS instruments using isotope dilution calibration with isotopically-labelled analogues.
We use isotopically-labelled internal standards to ensure a high level of precision for a range of sample types. Our method has been validated on:
As Australia’s peak measurement body and technical leader in the Australian analytical market, we:
Our standard turnaround time is 5-30 days.
We also offer 1, 2 and 3 working day turnaround times where agreed.
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Last updated: 8 December 2020
Content ID: 64578