Mass Spectrometry Protein Standard Mix from China
Certified mixture of 48 proteins at femtogram/attomole levels for LC-MS/MS instrument calibration and sensitivity testing. Certified reference material under HTS 3822.19.0080.
Duty Rate — China → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include digestion protocol and LC gradient recommendations
• Declare peptide mass accuracy and digestion efficiency specifications
• Lyophilized standards require reconstitution stability data