Amphetamine and methamphetamine measured and reported separately on every wipe, so your hygienist and remediator can see whether residue looks like use or manufacture before a single wall is cleaned.
Speciated amphetamines analysis measures amphetamine and methamphetamine separately on each surface wipe instead of reporting a combined figure. Seeing both compounds side by side, room by room, helps a hygienist judge whether residue is more consistent with drug use or with manufacture, which determines how extensive remediation needs to be.
Amphetamines are a family of synthetic stimulants that increase alertness, energy and focus by raising levels of dopamine and noradrenaline in the brain. The two members that matter most for property contamination are amphetamine itself and methamphetamine, which is amphetamine with one additional methyl group on the nitrogen atom.
Illicit amphetamine is most often sold as a powder, commonly called speed, and is usually snorted, swallowed or injected. Methamphetamine, particularly crystal methamphetamine, is more potent, more widely used in Australia and is usually smoked. Because smoking deposits so much more residue on surfaces than other routes, methamphetamine dominates most contaminated property results.
Amphetamine also has a legitimate medical life. Dexamphetamine and lisdexamfetamine are prescribed in Australia for conditions including ADHD. That is one reason a low amphetamine result on its own must always be read in context, and why speciation is so valuable. A result that simply says amphetamines were present, without separating the compounds, loses most of the information that matters.
In the body, a proportion of methamphetamine is converted to amphetamine. On surfaces, the relative amounts of the two compounds, and how they change from room to room, can reflect how the drug was used, how it was made and how long ago the residue was deposited.
Amphetamine has the formula C9H13N and a molar mass of 135.21 g/mol. Methamphetamine is C10H15N at 149.24 g/mol. The difference is a single methyl group, which is small enough that the two compounds behave similarly on surfaces but distinct enough to be separated and measured individually in the laboratory.
Speciation means reporting each compound on its own line. It sounds like a small change, but it is what allows a pattern to emerge. Different manufacturing routes leave different compound profiles and by-products behind, and a site where methamphetamine was cooked often looks very different, chemically, from a site where it was only smoked.
Speciated results become most powerful when they are read alongside precursor results. Methamphetamine and amphetamine with pseudoephedrine or ephedrine on kitchen, laundry or garage surfaces is a very different finding from methamphetamine and a trace of amphetamine on a lounge ceiling. The first suggests manufacture. The second is typical of use.
No single ratio proves either case on its own. Interpretation belongs with an environmental hygienist who can weigh the numbers against the layout of the property, the distribution of residue and any other evidence. What speciation guarantees is that the hygienist has the data to make that judgement.
Methamphetamine is the amphetamine-type substance with the greatest impact on Australian properties. Australia's National Wastewater Drug Monitoring Program has consistently reported it as the most consumed of the illicit stimulants it measures, and law enforcement agencies continue to detect and dismantle clandestine laboratories across the country every year.
That combination means remediators regularly encounter both kinds of site. Most contaminated homes are use sites, where smoking has spread residue through the living areas. A smaller number are former laboratories, where manufacturing has left heavier contamination concentrated in kitchens, laundries, bathrooms, garages and sheds.
Telling these sites apart early is one of the most valuable things a laboratory result can do. It sets expectations for owners, informs the safety of everyone entering the property and prevents both over-scoping and under-scoping of the remediation that follows.
Amphetamine-type residue carries the same practical risks as methamphetamine residue, and a few of its own, because misreading the pattern leads to the wrong remediation scope.
Residue on benchtops, door frames, floors and soft furnishings transfers to skin. Children and pets spend the most time in contact with contaminated surfaces.
Treating a use site like a laboratory can multiply the cost of remediation. Treating a laboratory like a use site can leave serious contamination in place.
Former clandestine laboratories can hold corrosive, flammable and toxic chemical residue, as well as contamination in drains and outdoor areas.
Prescribed amphetamine medication can explain low amphetamine levels. Speciation helps prevent a legitimate household being treated as a drug site.
Our amphetamines analysis is built for the moment before a scope is written, when the key question is not simply whether residue is present but what kind of site you are standing in.
We help you add sampling locations where manufacture would have occurred if it did, alongside the usual high-touch surfaces.
NIOSH 9111 wipes and 100 cm² templates keep every result comparable from room to room.
Samples are registered in the Digital Chain of Custody at collection and tracked to the final certificate.
Amphetamine and methamphetamine are reported on the same line for every wipe, within 24 hours or 12 on priority.
Where the pattern suggests manufacture, we can add precursor analysis for pseudoephedrine and ephedrine. Talk to us about whether retained sample material can be used, or whether resampling the key locations is the better option.
For decontamination companies, speciated results are the evidence that decides the size and shape of a job. They help the remediator and hygienist agree on the category of site before costs are committed.
| Location | Assessment | Clearance |
|---|---|---|
| Kitchen benchtop | METH 1.94, AMP 0.12 | METH 0.14 |
| Laundry bench | METH 2.36, AMP 0.19 | METH 0.21 |
| Lounge ceiling | METH 0.71, AMP 0.03 | METH 0.06 |
| Bedroom wall | METH 0.52, AMP ND | ND |
| Garage bench | METH 3.05, AMP 0.27 | METH 0.29 |
Illustrative results only. ND means not detected at the laboratory reporting limit.
Methamphetamine clearance is assessed against the 0.5 µg/100 cm² guideline. Amphetamine results are reported alongside so that the hygienist can confirm the whole profile has been addressed.
Good results start with good sampling. We recommend that samples are collected by a NATA accredited company, because the right method depends on the site and the analysis requirements. The steps below outline the NIOSH 9111 surface wipe method, the most common approach for drug residue on hard surfaces.
We will help you decide whether to add manufacturing-zone locations or precursor analysis.
Kitchens, laundries, bathrooms, garages, sheds, under-sink cabinets and exhaust fans.
Door frames, light switches and benchtops show how residue has spread through the property.
Change gloves for every wipe to keep each result independent.
Overlapping strokes in one direction, fold inward, then repeat at right angles inside the template.
Register each wipe digitally, add a field blank and send the kit to our Fairfield laboratory.
Straight answers to the questions we are asked most about amphetamines analysis. Can't find yours? Call the laboratory on 1300 522 115.
Methamphetamine is amphetamine with an extra methyl group. It is more potent, more commonly used in Australia and usually smoked, which is why it dominates most property results.
Prescribed medicines such as dexamphetamine and lisdexamfetamine can explain low amphetamine levels. This is one reason results are reported separately and interpreted in context.
There is no single ratio that proves manufacture on its own. A hygienist interprets the pattern together with precursor results, the layout of the site and other evidence.
The widely used 0.5 µg/100 cm² investigation level applies to methamphetamine. Amphetamine results are reported in the same units and interpreted by your hygienist.
If there is any suggestion of manufacture, yes. Pseudoephedrine and ephedrine results are the strongest chemical evidence that a site was used as a laboratory.
Within 24 hours of the samples arriving at the laboratory, or within 12 hours on priority.
Laboratory quantification of methamphetamine residue on household and commercial surfaces, reported in µg/100 cm² against the 0.5 µg Australian.
Detection and quantification of pseudoephedrine and ephedrine on surfaces, revealing possible methamphetamine manufacture even where finished product.
Every wipe screened and quantified for methamphetamine, amphetamine, MDMA, MDA, cocaine, benzoylecgonine, fentanyl, pseudoephedrine and ephedrine..