*This promotion is open to customers in the US (excluding Puerto Rico) and Canada. You must register no later than 11:59 PM PST February 17, 2011 in order to qualify for the discount code.  Limit one registration per customer.  Registration does not require purchase; it entitles registrant to a discount code to be applied to  purchase of a Qubit 2.0 Quantitation Starter Kit [Cat. No. Q32871].  Discount will apply to qualifying orders received by Invitrogen no later than March 31, 2011 or until promotional supplies are depleted, whichever comes first.  Customer can use the discount only once.  Discount only applies to a maximum of 1 Qubit 2.0 Quantitation Starter Kit [Cat. No. Q32871] per customer. Discount applies to list price in effect at the time order is received by Invitrogen.  Cannot be combined with other discounts or promotion.  Offer void where prohibited, licensed or restricted by federal, state, provincial, or local laws or regulation or agency/institutional policy. Other restrictions may apply.