Disposable laboratory implement

Abstract

A plastic, disposable laboratory implement used in treating and processing liquid samples containing nucleic acids. The implement includes at least one wall segment in contact with the liquid sample and made of a polypropylene mixed with at least one additive. The additive lowers a bonding affinity of the polypropylene for nucleic acids. The wall segment exhibits a surface gloss>160 as measured per DIN 67530 at an angle of 60°.

1 . A plastic, disposable laboratory implement used in treating and processing liquid samples containing nucleic acids, said implement comprising at least one wall segment in contact with the liquid sample and being made of a polypropylene mixed with at least one additive, said additive lowering a bonding affinity of the polypropylene for nucleic acids, 
 wherein the wall segment exhibits a surface gloss>160 as measured per DIN 67530 at an angle of 60°.    
     
     
         2 . The disposable laboratory implement as claimed in  claim 1 , wherein the wall segment exhibits a surface gloss>170.  
     
     
         3 . The disposable laboratory implement as claimed in  claim 1 , wherein the additive is a clarifier.  
     
     
         4 . The disposable laboratory implement as claimed in  claim 3 , wherein the clarifier is contained at a concentration in the polypropylene to that exceeds concentrations conventionally used with transparent implements and said clarifier concentration being in a range of concentrations wherein increasing the clarifier concentration no longer results in a significant increase in transparency.  
     
     
         5 . The disposable laboratory implement as claimed in  claim 3 , wherein the clarifier is an available substance designated as ADK STAB NA-21.  
     
     
         6 . The disposable laboratory implement as claimed in  claim 5 , wherein the clarifier ADK Stab NA-21 is contained in a concentration>0.2% (wt/wt) in the polypropylene.  
     
     
         7 . The disposable laboratory implement as claimed in  claim 1 , wherein said implement serves as a device selected from the group consisting of pipet tips, reaction receptacles, receptacles storing liquid samples and microtitration plates.  
     
     
         8 . The disposable laboratory implement as claimed in  claim 1 , wherein the disposable laboratory implement is integrally made of the polypropylene mixed with at least one additive.  
     
     
         9 . The disposable laboratory implement as claimed in  claim 2 , wherein the additive is a clarifier.  
     
     
         10 . The disposable laboratory implement as claimed in  claim 9 , wherein the clarifier is contained at a concentration in the polypropylene that exceeds concentrations conventionally used with transparent implements and said clarifier concentration being in a range of concentrations wherein increasing the clarifier concentration no longer results in a significant increase in transparency.  
     
     
         11 . The disposable laboratory implement as claimed in  claim 9 , wherein the clarifier is an available substance designated as ADK STAB NA-21.  
     
     
         12 . The disposable laboratory implement as claimed in  claim 10 , wherein the clarifier is an available substance designated as ADK STAB NA-21.  
     
     
         13 . The disposable laboratory implement as claimed in  claim 11 , wherein the clarifier ADK Stab NA-21 is contained in a concentration>0.2% (wt/wt) in the polypropylene.  
     
     
         14 . The disposable laboratory implement as claimed in  claim 12 , wherein the clarifier ADK Stab NA-21 is contained in a concentration>0.2% (wt/wt) in the polypropylene.