The POPPETTE series of adjustable, positive-displacement micropipettors is designed for polymerase chain reaction, DNA hybridization, and radioactive applications. The devices feature a disposable plunger and tip unit.

Whatman LabSales Inc., Hillsboro, Ore. Circle No. 88 on Reader Service Card

Purification Kit

MAb Pharm is a new kit for producing and purifying research- scale quantities of monoclonal antibody (MAb). The kit includes the Micro Mouse hollow-fiber bioreactor cell culture system; the Hybrid Grow basal medium, specialized for growing hybridomas; and AvidChrom for MAbs, formulated specifically for purifying monoclonal antibodies.

Unisyn Technologies, San Diego Circle No. 89 on Reader Service Card

Cathepsin D ELISA measures both the pro- and mature forms of cathepsin in human cytosols and extracts, as well as material derived from cell cultures. The uPA ELISA detects uPA bound to its receptor or to PAI-1 in tumor and serum cell culture-derived samples.

Oncogene Science Inc., Cambridge, Mass....

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