Get Help Sign In

Frequently asked questions

Our Scientific Applications Support team has assembled a list of frequently asked questions to help you find answers quickly. Filter using one or more categories to focus on specific topics, or use the search bar to perform a text search.

Why do my OD measurements not match the values reported by IDT?

OD values are easily affected by a number of small variables. IDT takes two separate OD measurements to ensure accuracy of the OD calculation. These values are then averaged and a final OD value is reported.

Depending upon the machine used, the sample prep conditions, and the algorithm applied to determine the OD values, there will be some variation from method to method.

OD values reported by IDT should be within 20% of the actual OD value for the product depending upon the preceding variables.

*RUO—For research use only. Not for use in diagnostic procedures. Unless otherwise agreed to in writing, IDT does not intend for these products to be used in clinical applications and does not warrant their fitness or suitability for any clinical diagnostic use. Purchaser is solely responsible for all decisions regarding the use of these products and any associated regulatory or legal obligations.