Patent ID: 7722822

Claim:
An apparatus for processing an analyte, comprising: a first receptacle having i) a first aperture, ii) an exterior surface having a first configuration, the first configuration adjacent the first aperture, and iii) a first locking structure integral with the exterior surface of the first receptacle; a locking member retained on the first receptacle by the first locking structure; and a second receptacle having i) a second aperture, ii) an interior surface having a second configuration, the second configuration adjacent the second aperture, and iii) a second locking structure integral with the exterior surface of the second receptacle; wherein the first configuration and the second configuration are complementary and form a sealing surface interior to the second receptacle when the first and second receptacles are engaged, whereby the sealing surface provides for analyte solution within the first receptacle passing into the second receptacle via the first and second apertures, substantially without leaking; and wherein, when the first and second receptacles are engaged, the locking member is disposed at the first and second locking structures and is operable to engage the first and second locking structures.