Patent ID: 9739704
Date: 2017-08-22
CPC Classifications: B01L,G01N

Claim:
1. A fluid processing tube capable of being used in optical analysis, comprising: a) a first portion being made from a first material suitable for optical analysis and being configured to include two optical paths of different lengths, and b) a second portion connected to said first portion and being made from a second material different from said first material, wherein said first portion comprises an optical detection zone, wherein said optical detection zone has a rectangular cross-section when viewed in direction of a longitudinal axis of the tube and includes two optical paths of different lengths, wherein the two optical paths are perpendicular to each other and perpendicular to the longitudinal axis of the tube, wherein said first portion is configured to contain a fluid, wherein said fluid processing tube is configured for centrifugation, wherein said second portion is cylindrically shaped and has a tapered end which contains a combination of protrusions and grooves, and wherein said first portion is mechanically interlocked to the tapered end of said second portion by the combination of protrusions and grooves.