Can we composite SARS-CoV-2 (COVID-10) swabs for testing?

We don’t recommend compositing samples, because there is no enrichment step in the testing protocol. Therefore, compositing samples would lower the sensitivity of testing and such render false negatives. In addition, the swab tip is relatively small. Sampling too big of an area would saturate the swab and lower the collecting efficiency.

Is there an air sampling method for SARS-CoV-2?

There are air sampling methods for the SARS-CoV-2 (COVID-19) virus in general. However, the regular filter cassettes will not work because their pore size is larger than virus particles. Liquid impinger with proper medium is a suitable method. There is a study of air sampling of SARS-CoV-2 using SASS®2300 WETTED-WALL AIR SAMPLER at 300 L/min for 30 minutes. There is another study that used polytetrafluoroethylene (PTFE) filter cassettes for taking air samples. However, we have not validated a testing method for air samples.

Could the SARS-CoV-2 (COVID-19) testing be used for food packaging materials (plastic/glass bottles, plastic film, cardboard boxes, etc)?

Yes, the SARS-CoV-2 (COVID-19) analysis can be used for food packaging materials as long as you can use the specialty swab to collect a sample from the food packaging materials’ surface.

Can I sample multiple locations per SARS-CoV-2 swab?

It is not recommended to sample more than one location per swab.  It some areas, it may make sense to sample the door handle & keypad on a microwave oven, or  a keyboard and mouse, with a single swab. However, do not exceed the 100sq cm (or 8″x8″) maximum sampling area per swab.

Do you offer Next-Generation Sequencing (NGS)?

Yes, we do offer next-generation sequencing service. We recommend this method for complex microbial community analysis (e.g. compost, soil and complex probiotic products). Please contact the lab for project details and a special quote.

Which Mycotoxin tests does AEMTEK offer?

We currently offer Total Aflatoxins (B1, B2, G1, G2), Ochratoxin (Ochratoxin A 100% Ochratoxin B 18%) and Trichothecene (Verrucarin A) tests on routine basis. For other mycotoxin tests, please contact us for availability and special quotes.

What methods for Legionella testing are available at AEMTEK?

We offer culture plating method (based on CDC, ISO11731-2 and Standard Method SM9260J), Legiolert method (IDEXX) and Legionella pneumophila PCR method. All our methods are accredited by CDC ELITE program and AIHA EMLAP.

What methods for Mold Detection and Identification are available at AEMTEK?

We offer microscopic examination, culture method, ITS and 18S DNA sequencing and qPCR methods.

Will my COA be accepted by Amazon?

Aemtek is an ISO accredited, reputable laboratory with over 15 years of experience testing for the food, environmental, and cosmetic industries. Although it cannot be guaranteed that Amazon will accept any individual COA, we are familiar with their documentation requirements and have put together a panel of tests that includes the analyses retailers will look for on a Certificate of Analysis (COA) to ensure product safety and quality. If you do have any issues with your COA, please reach out to us at and we will work with you to address the issue.