We have some inconclusive results and would like to know why?

Results can be inconclusive for several reasons. It may be that the samples contained sediment, either due to the nature of the water body or because the samples were taken from a sediment rich part of the collection bag. Sediment typically contains inhibitory chemicals (dead plant matter, soil, etc.) that inhibit the DNA test. When we get an inconclusive result we perform DNA dilutions following the standard Natural England protocol to try and resolve this issue, but sometimes this isn’t enough to completely remove those inhibitors and therefore we cannot provide you with a conclusive GCN result.


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