Starna has unveiled a DNA quality control standard in a liquid vial that provides its DNAcon 260/280 reference material in a consumable format suitable for drop technology systems.
The 1.5ml vial is produced in an ISO 17025 and ISO Guide 34 accredited environment and provides a NIST traceable quality control standard to enable quick and reliable quality assurance of the DNA 260/280nm measurement process.
The concentration is matched for use with the ultra-low (less than 5ul) and short path length (1mm) volume measurement systems now available from several vendors.
Starna said its DNAcon 260/280 quality control standard is ideal for performing DNA purity evaluations in clinical and bioscience laboratories.
It mimics the spectral characteristics of DNA solutions with respect to the 260/280nm ratio.
The reference material used by Starna is stable and durable because it is not DNA and overcomes the problem of DNA solutions being inherently unstable.
DNA-based quality control materials for routine use are not a viable proposition for process verification, as the chemistry of molecular and microbiological organic substances is complicated and the materials themselves are often difficult to characterise, handle, package, store and certify.
The stability of DNA materials is always questionable because changes are constantly occurring within the materials themselves.
