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BET Dilution Calculator (MVD)

BET Dilution Calculator (MVD) & Preparation Guide | PharmCal

BET Dilution Calculator (MVD)

Calculate Maximum Valid Dilution & Preparation Steps for LAL Testing

(EU/mL)
(mg/mL)
(EU/mL)
(e.g. 40x)
Maximum Valid Dilution (MVD): 0
Minimum Valid Concentration (MVC): 0 mg/mL
Status of Target Dilution: Pending...

Preparation Recipe (Total Vol: 5.0 mL)

Standard Dilution Series (Reference)

Dilution Sample Vol (mL) LRW Vol (mL) Endotoxin Limit (EU/mL)
Performed By:
Name:
Date:
Checked By:
Name:
Date:

About Bacterial Endotoxins Test (BET) Preparation

Proper sample preparation is critical for the Bacterial Endotoxins Test (USP <85>). Samples must be diluted to overcome interference (inhibition/enhancement) but must not exceed the Maximum Valid Dilution (MVD), otherwise, the limit of detection will be compromised.

1 Determine MVD: This tool calculates the MVD based on your Product Limit and the Sensitivity of the Lysate used.
2 Select a Dilution: Choose a dilution factor that is less than the MVD (usually MVD/2 or MVD/4) to safely test the product without interference.
3 Follow the Recipe: Use the generated preparation guide to mix the sample with LAL Reagent Water (LRW).

Key Calculation Formula

MVD = (Endotoxin Limit × Sample Conc) / λ
Recipe Vol (Sample) = Total Vol / Dilution Factor

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