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Frequently Asked Questions

How long is the process from ordering to delivery?
Orders for controls, virus inoculum and antisera are usually processed within 2 days. Delivery time may vary depending on destination and courier service.


How should your material be stored?
All antisera and serological reagents should be stored at +4°C. We recommend to store freeze-dried controls and virus inoculum at -20°C.


Can I order your products from a distributor in my country?
DSMZ does not have distributors. All products have to be ordered directly from DSMZ and are shipped worldwide.


What does a positive/negative control consist of?
Controls usually consist of vacuum freeze dried plant sap, provided in small glass vials. Dissolve all controls in 2 ml of buffer. Store aliquots at -20°C.


How should I prepare and send samples for virus/viroid detection?
Different sample materials and procedures are used for the analyses. Please always contact us before sending any samples.

How are nucleic acid extract delivered?
Nucleic acid extracts are delivered in ethanol. To recover and remove Na-acetate, spin down for 20 min at 4°C and 13000 rpm, discard supernatant, wash with 70% ethanol and dry pellet. Dissolve in appropriate buffer.

Why does my IgG/conjugate vial look empty?
Serological reagents are highly concentrated and have to be diluted prior to use. Thus, e.g. a vial for 100 tests contains only 20 µl! Before opening the vials, please spin down all the liquid by a short centrifugation (approx. 3000 rpm for a few seconds).