Be sure that important samples are present on your array. Absent or low signal intensity may not always be an indication of expression level, but rather the result of inadequate or failed sample deposition. Microarrays Inc validates every production lot of arrays using a visual-light scan of representative slides, allowing the identification of missed or inadequately deposited samples. The resultant data denotes the exact array and source plate location of any suspect depositions. As a result, Microarrays Inc can validate which samples were deposited and will warranty any array that does not meet specifications.