How long will my kits remain stable when stored?

How long will my kits remain stable when stored?

Expiration date for Quant 500 and Quant 500 XL kits:
  1. Storage at -20 °C: 3 months after shipping date
  2. Storage at -80 °C: 12 months after shipping date
Expiration date for p180, p400 HR, Quant HR Xpress and Bile Acids kits:
  1. Storage at -20 °C: 6 months after shipping date
  2. Storage at -80 °C: 12 months after shipping date
Expiration date for Stero 17 kit:
  1. Storage at -20 °C: 3 months after shipping date
  2. Storage at -80 °C: 3 months after shipping date
After preparation:
Plates should be run immediately after preparation for best results. If unforeseen complications arise (e.g. instrumental issues) that prevent the plate form being run immediately:
  1. Plate can be run within 48h: Store plates at 4°C
  2. Plate cannot be run within 48h: Please follow the follwing instructions:
    1. If the dilutions for LC, FIA, and XL parts were already made:

      1. Please dry the extracts in the corresponding plates for the LC, FIA, and XL parts. Seal the dried plates and store them at -20 or -80 °C.

    2. If the dilutions for LC, FIA, and XL parts were not made:

      1. Please dry the extracts in the “capture plate”, seal the dried plate, and store it at -20 or -80 °C.


    • Related Articles

    • Why the extracts did not go through the filters or the volumes in the capture plate are low/inconsistent?

      Inconsistent or lack of volume in the filter plate may occur for several reasons. Below are some suggestions: Water or another solvent was used for making the extraction solvent instead of Methanol. Perform the following steps: Transfer the extracts ...

    • Why do extracts appear cloudy?

      For AbsoluteIDQ® p180, p400 HR and MxP® Quant 500 kits: When adding water to the methanolic sample extracts to make the LC plate, cloudiness can occur due to residues of pyridine and phenyl isothiocyanate from the derivatization solution. If that ...

    • What happens if I use the kit after it expires?

      All kit components requiring a refrigeration are subject to expiration (light blue box). These are the Vial Box and the Kit Plate. After passing the expiration date, the kit can still be used. However, the proper performance cannot be guaranteed. ...

    • Does the whole kit plate need to be prepared at once?

      A kit must be prepared all at once, as it is sealed under nitrogen to prevent degradation. Kits are for single use only.

    • What kind of samples can be measured with the kits?

      biocrates kits have been specifically validated for use with plasma and serum. Feasibility tests have been carried out with other sample matrices and protocols are available (see below). Basically, any samples containing endogenous metabolites can be ...