Following information is crucial for us to determine the correct type, amount and expiry period of research kit, and provide the correct kit that you require for your research:
1. Species that the kit (your samples) belongs to (Human, Mouse, Rat, Rabbit etc.)
2. Your sample type (blood serum or plasma, tissue homogenate or extract, follicular fluid, cell lysate etc.)
3. Sample amount
4. Whether the samples were collected or not.
Most of the time, sample is blood. It is important for a kit working for blood that it works for either serum or plasma. The upper yellow segment of the centrifuged blood which is handled with a coagulant (EDTA or cytrate / heparin) is plasma. Plasma parameters can be analysed in the blood that was collected into a tube containing either EDTA (a purple tapped & vacuumed tube) or cytrate (a blue tapped & vacuumed tube).
Plasma’s inclusion of EDTA or cytrate is also important for some special kits. For this reason, it may be helpful to examine the data sheet before determining the kit for any parameter.
There are also kits that can work only for serum, i.e. the upper yellow segment of the centrifuged blood which is not handled with a coagulant (blood that was collected into a red tapped, empty or jelly, vacuumed tube). However, most of the research kits can work for either serum or plasma.