Frequently Asked Questions
Here are a few answers to our most common questions.
Normally we handle and ship orders within 24-48 hours. Shipping time may vary depending on end location.
The system is designed to be shipped in the breathable paper pouch provided in the Capitainer Kit. The customer is responsible for confirming their own shipping methods and shipping conditions.
Storage times depend on storage conditions and the determined stability for each analyte. For guidance, please refer to existing reference material for DBS samples, examples of which are included in the links below.
Please contact your test provider.
Please follow the included instructions, if still not sure then contact your test provider.
Please check the outlet window for color change as described in the included instructions.
Warm hands, stand up, shake your hands and use the spare lancet.
The product is not verified to be used outside the specified range. Hence, we cannot guarantee correct product performance in these circumstances.
No, the product is not specified for this, and it may affect the performance of the qDBS.
The sample is collected on an Ahlstrom 222 paper disc. This can be accessed from the reverse side of the card, either with tweezers or by our semi automated Capitainer puncher.
The blue color is Patent Blue, which is used in the Polyvinylalcohol (PVOH) membranes that enable the metering function of the sampling card. If you are using LC-MS as your method of analysis, the PVOH and patent blue will give a signal early in the mass chromatogram and possibly contribute to the other matrix effects that will have to be corrected for. These components will not contaminate your MS instrument.
As Capitainer qDBS is designed for use with blood derived from finger-pricking, i.e. using fresh blood, there are some aspects to consider if you do your validation experiments with control venous blood and pipetting in the lab.
- Do not use blood older than three days. This must be stored in the refrigerator and allowed to come to room temperature before using it on the cards.
- All blood samples should be well mixed gently using a rocker, prior to application to the card.
- If you use a syringe dispenser, you should make sure to apply blood to the cards within 5 minutes from the last mixing.
- Lyophilized blood products may not work.